WO2024019545A1 - 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 - Google Patents
배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 Download PDFInfo
- Publication number
- WO2024019545A1 WO2024019545A1 PCT/KR2023/010443 KR2023010443W WO2024019545A1 WO 2024019545 A1 WO2024019545 A1 WO 2024019545A1 KR 2023010443 W KR2023010443 W KR 2023010443W WO 2024019545 A1 WO2024019545 A1 WO 2024019545A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode assembly
- diameter
- battery
- center hole
- current collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to batteries, battery packs containing the same, and automobiles.
- Secondary batteries are typically configured to reduce the internal pressure through venting of internal gas when a problem occurs and the internal pressure increases. In this way, if venting occurs smoothly when the internal pressure is above a certain level, accidents such as explosions due to a continuous increase in internal pressure can be prevented.
- the electrode assembly When thermal runaway occurs, the electrode assembly may be ejected out of the housing too quickly, which may cause a short inside the secondary battery or an external short due to fragments of the ejected electrode assembly and/or other metal parts. You can.
- the ejected part of the electrode assembly may enter the discharge route of the internal gas before venting occurs due to partial rupture of the housing.
- smooth venting may be hindered by blockage. If venting is not smooth like this, the internal pressure can increase significantly, which can lead to a large explosion.
- the present invention was created in consideration of the above-mentioned problems, and its purpose is to prevent or delay as much as possible the structural collapse of the electrode assembly in the event of an increase in internal pressure and/or a thermal event due to a battery abnormality. do.
- a battery according to an embodiment of the present invention for solving the above-described problems includes an electrode assembly having a winding center hole formed by winding a laminate including a first electrode, a second electrode, and a separator interposed therebetween; a housing configured to receive the electrode assembly through an opening formed on one side; and a current collector having a diameter larger than the diameter of the winding center hole and formed at a position corresponding to the winding center hole, the current collector being coupled to one side of the electrode assembly at the opening side of the housing.
- the winding center hole may be located inside the current collector hole.
- the difference between the diameter of the current collector hole and the diameter of the winding center hole divided by the diameter of the winding center hole may be equal to or greater than 0.015 and less than 0.4.
- the diameter of the winding center hole may be equal to or greater than 5.0 mm and less than 7.0 mm.
- the difference between the diameter of the current collector hole and the diameter of the winding center hole may be equal to or greater than 0.1 and less than 2.0.
- the current collector may be electrically connected to the housing.
- the battery may include a cap configured to cover the opening.
- the cap may be provided with a venting portion that is configured to be weaker compared to the surrounding area so that it can be broken when the internal pressure increases.
- a battery pack according to an embodiment of the present invention for solving the above-described problem includes a battery according to an embodiment of the present invention.
- a vehicle according to an embodiment of the present invention for solving the above-described problem includes a battery pack according to an embodiment of the present invention.
- FIG. 1 is a diagram showing an open upper portion of a battery according to an embodiment of the present invention.
- Figure 2 is a plan view showing a combination of an electrode assembly and a current collector of the present invention.
- Figure 3 is a diagram for explaining the increase in normal force due to a decrease in the diameter of the winding center hole of the electrode assembly.
- Figure 4 is a diagram for explaining the increase in friction force due to the increase in normal force formed in the core of the electrode assembly.
- 5 to 7 are CT photographs showing changes in the discharge amount of the electrode assembly depending on the diameter of the winding center hole of the electrode assembly.
- Figure 8 is a diagram showing the upper structure of a battery according to an embodiment of the present invention.
- Figure 9 is a plan view showing the venting portion formed in the cap of the present invention.
- Figure 10 is a diagram showing the structure of the lower portion of a battery according to an embodiment of the present invention.
- FIG 11 is a diagram showing a battery pack according to an embodiment of the present invention.
- Figure 12 is a diagram showing a car according to an embodiment of the present invention.
- FIGS. 1 and 2 are diagram showing an open upper portion of a battery according to an embodiment of the present invention.
- Figure 2 is a plan view showing a combination of an electrode assembly and a current collector of the present invention.
- the battery 1 may be a cylindrical battery.
- the battery 1 may include an electrode assembly 10, a housing 20, and a current collector (first current collector) 30.
- the electrode assembly 10 may have a winding center hole 10a formed by winding a laminate including a first electrode, a second electrode, and a separator interposed between them.
- the first electrode may have a first uncoated portion 11 formed at one end along the winding direction. In this case, the first uncoated portion 11 may be provided on one side of the electrode assembly 10.
- the housing 20 may be configured to accommodate the electrode assembly 10 through an opening formed on one side. Although not shown in FIG. 1, a closed portion may be provided on the opposite side of the open portion.
- the housing 20 may include conductive metal. In Figure 1 of the present invention, one side of the housing 20 is shown in an open state, but the open portion may be closed by a separate part.
- the current collector 30 may be disposed on one side of the electrode assembly 10 on the open side of the housing 20.
- the current collector 30 may be electrically coupled to the first uncoated portion 11 of the electrode assembly 10.
- the first uncoated portion 11 may be formed at one end of the first electrode constituting the electrode assembly 10.
- the first uncoated portion 11 may extend along the winding direction of the electrode assembly 10.
- the first uncoated portion 11 may be provided on one side of the electrode assembly 10 and, for example, may extend upward of the electrode assembly 10.
- the current collector 30 may be configured to electrically connect the first electrode of the electrode assembly 10 and the housing 20.
- the current collector 30 may include a current collector hole 30a.
- the current collector hole 30a may be formed at a position corresponding to the winding center hole 10a of the electrode assembly 10.
- the current collector hole 30a may have a diameter R2 larger than the diameter R1 of the winding center hole 10a of the electrode assembly 10.
- the winding center hole 10a of the electrode assembly 10 may be located inside the current collector hole 30a. That is, the current collector 30 may be arranged so as not to even partially cover the winding center hole 10a of the electrode assembly 10.
- the electrolyte when the combined body of the electrode assembly 10 and the current collector 30 is accommodated in the housing 20 and the electrolyte is injected, the electrolyte is circulated through the winding center hole 10a. It can be done smoothly.
- a closed portion located opposite to the open portion of the housing 20 is irradiated with a laser for welding or a device for welding is inserted through the winding center hole 10a. The process of welding components such as terminals provided on the side can be easily performed.
- the current collector 30 covers even a portion of the winding center hole 10a of the electrode assembly 10, there may be a problem in that the flow circulation of the electrolyte is not smooth during the electrolyte injection process as described above.
- the current collector 30 covers even a portion of the winding center hole 10a of the electrode assembly 10, there is a problem in that the welding process through the winding center hole 10a cannot be smoothly performed and/or welding. During the process, a problem may occur in which the inner wall surface of the winding center hole 10a is damaged.
- FIGS. 3 to 7 are CT photographs showing changes in the discharge amount of the electrode assembly depending on the diameter of the winding center hole of the electrode assembly.
- the core exposure ratio is the difference between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a of the electrode assembly 10 divided by the diameter R1 of the winding center hole 10a.
- (A: core exposure ratio) may be approximately 0.015 to 0.5.
- the core exposure ratio (A) may be approximately equal to or greater than 0.015 and less than 0.4.
- the core exposure ratio (A) may be approximately equal to or greater than 0.072 and less than 0.3.
- the core exposure ratio (A) may be approximately 0.016 to 0.5.
- the core exposure ratio (A) may be approximately equal to or greater than 0.016 and less than 0.4.
- the core exposure ratio (A) may be approximately equal to or greater than 0.077 and less than 0.3.
- the core exposure ratio (A) may be approximately 0.016 to 0.416.
- the core exposure ratio (A) may be approximately 0.016 to 0.333.
- the core exposure ratio (A) may be approximately equal to or greater than 0.077 and
- the diameter R1 of the winding center hole 10a may be approximately equal to or larger than 5.0 mm and smaller than 7.0 mm.
- the diameter R1 of the winding center hole 10a may be equal to or greater than approximately 5.0 mm and less than approximately 6.5 mm.
- the diameter R1 of the winding center hole 10a may be approximately equal to or larger than 6.0 mm and smaller than 6.5 mm.
- the difference (R2-R1) between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a may be approximately 0.1 mm to 2.5 mm.
- the difference (R2-R1) between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a may be approximately equal to or greater than 0.1 mm and less than 2.0 mm.
- the difference (R2-R1) between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a may be approximately equal to or greater than 0.5 mm and less than 1.5 mm.
- This numerical range takes into account all of the following: suppressing deformation of the core of the electrode assembly 10, ensuring smooth electrolyte circulation, ensuring ease of welding process, and ensuring ease of alignment of the current collector 30 and the electrode assembly 10. .
- the influence of the diameter R1 of the winding center hole 10a and the diameter R2 of the current collector hole 30a on the resistance to suppress discharge of the core portion of the electrode assembly 10 will be described in detail below. .
- the core portion of the electrode assembly 10 resists the upward discharge force due to an increase in normal force as the diameter R1 of the winding center hole 10a decreases. This increases. This means that, as the normal force applied outward from the core portion of the electrode assembly 10 increases, the friction force between each neighboring layer of the laminate including the first electrode, the second electrode, and the separator increases. Because it increases.
- the friction force between each layer of the laminate may act as a resistance force against the discharge force caused by the core portion of the electrode assembly 10 increasing the internal pressure of the battery 1. Therefore, when this frictional force increases, discharge of the core portion of the electrode assembly 10 can be suppressed.
- FIGS. 5 to 7 in the case where discharge of the core portion of the electrode assembly 10 occurs due to an increase in the internal pressure of the battery 1, the actual winding center of the electrode assembly 10 It can be seen that as the hole 10a becomes smaller, the length of the core portion of the electrode assembly 10 discharged toward the opening of the housing 20 becomes shorter.
- Figure 5 shows a case where the diameter R1 of the winding center hole 10a is approximately 6 mm
- Figure 6 shows a case where the diameter R1 of the winding center hole 10a is approximately 7 mm
- Figure 7 shows a case where the diameter R1 of the winding center hole 10a is approximately 7 mm.
- the core portion of the electrode assembly 10 was discharged upward due to a thermal event in the battery 1, but the discharged portion was not exposed to the outside of the battery 1.
- the discharge length of the core portion of the electrode assembly 10 is very short.
- the discharge length of the core portion of the electrode assembly 10 is very long and that the discharge is discharged upward even at positions far away from the core portion of the electrode assembly 10.
- the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.109 to 0.159.
- the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.109 to 0.147.
- the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.130 to 0.147.
- the difference between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.002 to 0.056.
- the difference between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.002 to 0.045.
- the difference between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a divided by the diameter of the electrode assembly 10 may be approximately 0.011 to 0.034.
- the resistance that suppresses discharge of the core portion of the electrode assembly 10 is the absolute value of the diameter R1 of the winding center hole 10a of the electrode assembly 10 and the diameter R2 of the current collector hole 30a, as well as the absolute value of the electrode assembly 10. It may also be influenced by the ratio of the diameter R1 of the winding center hole 10a to the overall diameter of the assembly 10.
- the diameter of the electrode assembly 10 of the present invention may be, for example, approximately 44 mm to 46 mm.
- the circulation of the electrolyte through the winding center hole 10a may not be smooth and/or the housing 20 may not be opened through the winding center hole 10a.
- the process of welding parts located on the opposite side of the unit is not smooth.
- the diameter R2 of the current collector hole 30a formed in the current collector 30 may also affect determining the resistance to suppress discharge from the core portion of the electrode assembly 10.
- the process of aligning the winding center hole 10a to be disposed within the current collector hole 30a may not be easy. If the winding center hole 10a is not accurately located within the current collector hole 30a, the winding center hole 10a may be partially covered by the current collector 30. This may interfere with the injection/circulation of the electrolyte through the winding center hole 10a, and may also interfere with the welding process performed through the winding center hole 10a. Therefore, taking this into consideration, it is necessary to set a lower limit of the difference between the diameter R2 of the current collector hole 30a and the diameter R1 of the winding center hole 10a.
- R1 is 6.5 mm or more
- R2-R1 is formed to be 2.5 mm or less.
- measures may be taken to limit R1 to approximately less than 6.5 mm and/or to limit R2-R1 to approximately less than 2.0 mm and/or to limit R2-R1 to approximately less than 1.5 mm, thereby The effect of suppressing deformation of the core can be further improved.
- FIGS. 8 to 10 the overall structure of the battery 1 according to an embodiment of the present invention will be described by way of example.
- Figure 8 is a diagram showing the upper structure of a battery according to an embodiment of the present invention.
- Figure 9 is a plan view showing the venting portion formed in the cap of the present invention.
- Figure 10 is a diagram showing the structure of the lower portion of a battery according to an embodiment of the present invention.
- the current collector 30 may be configured to be electrically connected to the housing 20.
- the current collector 30 may be electrically coupled to a beading portion having a structure in which the outer peripheral surface of the housing 20 is pressed inward.
- the battery 1 may include a cap 40 configured to cover an opening formed on one side of the housing 20.
- the cap 40 may be electrically insulated from the electrode assembly 10 and the housing 20 and may be configured to have no polarity.
- a first insulating member G1 may be interposed between the cap 40 and the housing 20.
- the cap 40 may be provided with a venting portion 40a configured to break when the internal pressure of the battery 1 increases.
- the venting portion 40a may be configured to be weak compared to the surrounding area.
- the venting portion 40a may correspond to an area having a thinner thickness compared to the remaining area of the cap 40.
- the venting portion 40a may extend to form a closed loop within the cap 40 as shown in FIG. 8 .
- the discharge suppression force of the core portion of the electrode assembly 10 as described above is secured. This is even more important. If the discharge suppressing force of the core portion is not secured, the space formed between the cap 40 and the current collector 30 before the internal gas is discharged due to the rupture of the venting portion 40a formed in the cap 40. A filling phenomenon may occur by the core portion of the discharged electrode assembly 10. In this case, even if the venting portion 40a is broken, smooth gas discharge may not be achieved, which may result in the thermal event spreading.
- the battery 1 may include a first terminal T1.
- the first terminal T may be electrically coupled to the second uncoated portion 12 of the electrode assembly 10. Similar to the first uncoated area 11 described above, the second uncoated area 12 may be formed at one end of the second electrode.
- the second uncoated portion 12 may extend along the winding direction of the electrode assembly 10.
- the second uncoated portion 12 may be provided on one of both sides of the electrode assembly 10 opposite to the side on which the first uncoated portion 11 is provided, for example, toward the lower side of the electrode assembly 10. It may be extended.
- the first terminal T may be partially inserted into the inside of the housing 20 through a closed portion of the housing 20.
- the first terminal T may be configured to be insulated from the housing 20.
- the second insulating member G2 may be interposed between the first terminal T and the housing 20.
- the outer surface of the closed part of the housing 20 can function as the second terminal T2.
- the battery 1 may include a current collector (second current collector) P configured to electrically connect the first terminal T1 and the electrode assembly 10.
- the current collector (P) may be electrically coupled to the first terminal (T1).
- a laser is irradiated from the open side of the housing 20 through the winding center hole 10a of the electrode assembly 10, or a welding tool is inserted to connect the current collector P and the first terminal ( T1) The liver can be welded.
- an insulator (IS) may be interposed between the current collector (P) and the closed portion of the housing 20.
- the insulator IS can prevent contact between the current collector P and the housing 20, which are configured to have different polarities.
- FIG. 11 is a diagram showing a battery pack according to an embodiment of the present invention.
- the battery pack 3 may include at least one battery 1 of the present invention as described above.
- the battery 1 may be accommodated within the pack housing 2.
- the battery pack 3 may include components for electrically connecting the batteries 1 and/or a BMS (Battery Management System) configured to control charging and discharging of the batteries 1.
- BMS Battery Management System
- Figure 12 is a diagram showing a car according to an embodiment of the present invention.
- a vehicle 5 includes at least one battery pack 3.
- the vehicle 5 may be configured to operate by receiving power from the battery pack 3.
- the vehicle 5 may be, for example, a hybrid vehicle (HEV) or an electric vehicle (EV).
- HEV hybrid vehicle
- EV electric vehicle
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
| 홀의 직경 | Venting 후 Core 분석 | |
|
(TEST 1):
R1: 8mm R2-R1: 0.5mm |
전극 조립체 솟음 확률 | 100% (4/4ea) |
| 솟아오른 길이 | 약 10-20mm | |
|
(TEST 2):
R1: 7mm R2-R1: 0.5mm |
전극 조립체 솟음 확률 | 87.5% (7/8ea) |
| 솟아오른 길이 | 약 0-15mm | |
|
(TEST 3):
R1: 6mm R2-R1: 0.5mm |
전극 조립체 솟음 확률 | 0% (0/5ea) |
| 솟아오른 길이 | 0mm | |
|
(TEST 4):
R1: 8mm R2-R1: 0.5mm |
전극 조립체 솟음 확률 | 100% (4/4ea) |
| 솟아오른 길이 | 약 10-20mm | |
|
(TEST 5):
R1: 7mm R2-R1: 1.5mm |
전극 조립체 솟음 확률 | 100% (5/5ea) |
| 솟아오른 길이 | 약 5-20mm | |
|
(TEST 6):
R1: 6mm R2-R1: 2.5mm |
전극 조립체 솟음 확률 | 0% (0/3ea) |
| 솟아오른 길이 | 0mm | |
|
(TEST 7):
R1: 6.5mm R2-R1: 2mm |
전극 조립체 솟음 확률 | 83%(5/6ea) |
| 솟아오른 길이 | 약 10-30mm | |
Claims (10)
- 제1 전극, 제2 전극 및 그 사이에 개재되는 분리막을 포함하는 적층체가 권취되어 형성되는 권취 중심 홀을 구비하는 전극 조립체;일 측에 형성되는 개방부를 통해 상기 전극 조립체를 수용하도록 구성되는 하우징; 및상기 권취 중심 홀의 직경보다 더 큰 직경을 가지며 상기 권취 중심 홀과 대응되는 위치에 형성되는 집전체 홀을 구비하며, 상기 하우징의 상기 개방부 측에서 전극 조립체의 일 면 상에 결합되는 집전체;를 포함하는,배터리.
- 제1항에 있어서,상기 권취 중심 홀은,상기 집전체 홀의 내측에 위치하는 것을 특징으로 하는,배터리.
- 제1항에 있어서,상기 집전체 홀의 직경과 상기 권취 중심 홀의 직경의 차이를 상기 권취 중심 홀의 직경으로 나눈 값은 0.015와 같거나 이보다 크고 0.4보다는 작은 것을 특징으로 하는,배터리.
- 제1항에 있어서,상기 권취 중심 홀의 직경은 5.0mm와 같거나 이보다 크고 7.0mm보다는 작은 것을 특징으로 하는,배터리.
- 제1항에 있어서,상기 집전체 홀의 직경과 상기 권취 중심 홀의 직경의 차이는 0.1과 같거나 이보다 크고 2.0보다는 작은 것을 특징으로 하는,배터리.
- 제1항에 있어서,상기 집전체는,상기 하우징과 전기적으로 연결되는 것을 특징으로 하는,배터리.
- 제1항에 있어서,상기 배터리는,상기 개방부를 커버하도록 구성되는 캡을 포함하는 것을 특징으로 하는,배터리.
- 제7항에 있어서,상기 캡은,내압 증가 시에 파단 가능하도록 주변 영역과 비교하여 취약하게 구성되는 벤팅부를 구비하는 것을 특징으로 하는,배터리.
- 제1항 내지 제8항 중 어느 한 항에 따른 배터리를 포함하는 배터리 팩.
- 제9항에 따른 배터리 팩을 포함하는 자동차.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23843391.6A EP4496111A4 (en) | 2022-07-19 | 2023-07-19 | BATTERY, AND BATTERY BLOCK AND VEHICLE INCLUDING THEREON |
| JP2025502676A JP2025526331A (ja) | 2022-07-19 | 2023-07-19 | バッテリー、それを含むバッテリーパック及び自動車 |
| CA3252770A CA3252770A1 (en) | 2022-07-19 | 2023-07-19 | BATTERY, BATTERY BLOCK, AND VEHICLE INCLUDING A BATTERY |
| CN202380024389.0A CN118786572A (zh) | 2022-07-19 | 2023-07-19 | 电池及包括该电池的电池组和车辆 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2022-0089125 | 2022-07-19 | ||
| KR20220089125 | 2022-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024019545A1 true WO2024019545A1 (ko) | 2024-01-25 |
Family
ID=89618289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/010443 Ceased WO2024019545A1 (ko) | 2022-07-19 | 2023-07-19 | 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4496111A4 (ko) |
| JP (1) | JP2025526331A (ko) |
| KR (1) | KR20240011645A (ko) |
| CN (1) | CN118786572A (ko) |
| CA (1) | CA3252770A1 (ko) |
| WO (1) | WO2024019545A1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026084500A1 (ko) * | 2024-10-17 | 2026-04-23 | 삼성에스디아이 주식회사 | 이차 전지 및 이를 포함하는 전지 팩 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738690A (en) * | 1994-07-06 | 1998-04-14 | Hughett; Elmer | Method of filling battery cell |
| JP2004171980A (ja) * | 2002-11-21 | 2004-06-17 | Matsushita Electric Ind Co Ltd | アルカリ蓄電池とその製造方法 |
| US20050147878A1 (en) * | 2003-08-28 | 2005-07-07 | Matsushita Electrial Industrial Co., Ltd. | Battery and method for manufacturing the same |
| US20110171504A1 (en) * | 2009-07-17 | 2011-07-14 | Shunsuke Yasui | Battery and battery unit |
| JP2019215965A (ja) * | 2018-06-11 | 2019-12-19 | Fdk株式会社 | 二次電池 |
| KR20220089125A (ko) | 2020-12-21 | 2022-06-28 | 강교연 | 마스크 팩 부착 가능한 마스크 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5196824B2 (ja) * | 2007-03-29 | 2013-05-15 | 三洋電機株式会社 | 円筒型電池及びその製造方法 |
| JP2008251199A (ja) * | 2007-03-29 | 2008-10-16 | Matsushita Electric Ind Co Ltd | アルカリ蓄電池用電極およびアルカリ蓄電池 |
| JP2010080294A (ja) * | 2008-09-26 | 2010-04-08 | Panasonic Corp | 二次電池 |
| JP2018055812A (ja) * | 2016-09-26 | 2018-04-05 | Fdk株式会社 | 集電リード、この集電リードを含むアルカリ二次電池の製造方法及びこの製造方法により製造したアルカリ二次電池 |
| CA3202295A1 (en) * | 2020-12-29 | 2022-07-07 | Lg Energy Solution, Ltd. | Cylindrical battery cell, and battery pack and vehicle comprising same |
| CN216250920U (zh) * | 2021-10-20 | 2022-04-08 | 宁德时代新能源科技股份有限公司 | 电池单体、电池及用电设备 |
-
2023
- 2023-07-19 EP EP23843391.6A patent/EP4496111A4/en active Pending
- 2023-07-19 JP JP2025502676A patent/JP2025526331A/ja active Pending
- 2023-07-19 WO PCT/KR2023/010443 patent/WO2024019545A1/ko not_active Ceased
- 2023-07-19 KR KR1020230094088A patent/KR20240011645A/ko active Pending
- 2023-07-19 CN CN202380024389.0A patent/CN118786572A/zh active Pending
- 2023-07-19 CA CA3252770A patent/CA3252770A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738690A (en) * | 1994-07-06 | 1998-04-14 | Hughett; Elmer | Method of filling battery cell |
| JP2004171980A (ja) * | 2002-11-21 | 2004-06-17 | Matsushita Electric Ind Co Ltd | アルカリ蓄電池とその製造方法 |
| US20050147878A1 (en) * | 2003-08-28 | 2005-07-07 | Matsushita Electrial Industrial Co., Ltd. | Battery and method for manufacturing the same |
| US20110171504A1 (en) * | 2009-07-17 | 2011-07-14 | Shunsuke Yasui | Battery and battery unit |
| JP2019215965A (ja) * | 2018-06-11 | 2019-12-19 | Fdk株式会社 | 二次電池 |
| KR20220089125A (ko) | 2020-12-21 | 2022-06-28 | 강교연 | 마스크 팩 부착 가능한 마스크 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4496111A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118786572A (zh) | 2024-10-15 |
| JP2025526331A (ja) | 2025-08-13 |
| EP4496111A1 (en) | 2025-01-22 |
| CA3252770A1 (en) | 2025-03-18 |
| KR20240011645A (ko) | 2024-01-26 |
| EP4496111A4 (en) | 2025-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020085815A1 (ko) | 배터리 셀 손상을 방지할 수 있는 구조를 갖는 배터리 모듈, 이를 포함하는 배터리 팩과 자동차 | |
| WO2020138818A1 (ko) | 버스바 프레임의 움직임을 제한하는 가이드를 구비하는 배터리 모듈과, 이를 포함하는 배터리 팩 및 자동차 | |
| WO2023075304A1 (ko) | 버스 바 일체형 셀 프레임을 포함하는 배터리 모듈 | |
| WO2024019545A1 (ko) | 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2022092566A1 (ko) | 이차 전지 | |
| WO2022154431A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
| WO2024186189A1 (ko) | 내화 코팅층이 탈리되어 벤팅홀이 개방되는 배터리 모듈 | |
| WO2024106989A1 (ko) | 전극 조립체 및 이를 포함하는 배터리, 그리고 이러한 배터리를 포함하는 배터리 팩 및 자동차 | |
| WO2024143754A1 (ko) | 배터리 모듈 및 이를 포함하는 배터리 팩 및 차량 | |
| WO2024248250A1 (ko) | 원통형 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2026079948A1 (ko) | 전극 조립체, 배터리 셀 및 이를 포함하는 배터리 팩 및 자동차 | |
| WO2026023962A1 (ko) | 배터리, 배터리 팩 및 이를 포함하는 자동차 | |
| WO2025143570A1 (ko) | 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2025063380A1 (ko) | 벤트를 갖는 이차전지 | |
| WO2025042210A1 (ko) | 배터리 및 이를 포함하는 배터리 팩, 그리고 배터리 팩을 포함하는 자동차 | |
| WO2024144194A1 (ko) | 전극조립체, 및 이를 포함하는 이차 전지, 배터리 팩 및 운송 수단 | |
| WO2026095463A1 (ko) | 버스바 및 이를 포함하는 배터리 팩 | |
| WO2024019551A1 (ko) | 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2025105598A1 (ko) | 배터리 셀 및 이를 구비하는 배터리 모듈 | |
| WO2024106864A1 (ko) | 배터리 셀 및 이를 포함하는 배터리 팩, 그리고 이러한 배터리 팩을 포함하는 자동차 | |
| WO2025075474A1 (ko) | 배터리, 이를 포함하는 배터리 팩 및 자동차 | |
| WO2025143571A1 (ko) | 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2025034023A1 (ko) | 집전체, 배터리 셀, 배터리 팩 및 이를 포함하는 자동차 | |
| WO2024232545A2 (ko) | 원통형 배터리, 그리고 이를 포함하는 배터리 팩 및 자동차 | |
| WO2026079861A1 (ko) | 배터리 셀, 배터리 팩 및 이를 포함하는 자동차 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23843391 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202380024389.0 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023843391 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2023843391 Country of ref document: EP Effective date: 20241016 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202417096254 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2025502676 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |