WO2018073694A2 - Solutions électrolytiques et cellules électrochimiques les contenant - Google Patents

Solutions électrolytiques et cellules électrochimiques les contenant Download PDF

Info

Publication number
WO2018073694A2
WO2018073694A2 PCT/IB2017/056267 IB2017056267W WO2018073694A2 WO 2018073694 A2 WO2018073694 A2 WO 2018073694A2 IB 2017056267 W IB2017056267 W IB 2017056267W WO 2018073694 A2 WO2018073694 A2 WO 2018073694A2
Authority
WO
WIPO (PCT)
Prior art keywords
electrolyte
electrolyte solution
negative electrode
electrochemical cell
lithium
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
Application number
PCT/IB2017/056267
Other languages
English (en)
Other versions
WO2018073694A3 (fr
Inventor
Ang Xiao
Dinh Ba Le
Kevin W. Eberman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of WO2018073694A2 publication Critical patent/WO2018073694A2/fr
Publication of WO2018073694A3 publication Critical patent/WO2018073694A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0567—Liquid materials characterised by the additives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • 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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • 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

Definitions

  • the present disclosure relates to electrolyte solutions for electrochemical cells.
  • an electrolyte solution includes a solvent; an electrolyte salt; and a cyano silane having formula (I):
  • R is a linear, branched, or cyclic alkylene group having from 1 to 5 carbon atoms, and optionally includes one or more catenary heteroatoms; x is 1-3; and y is 1-5.
  • Figure IB shows 19 F NMR spectra of an electrolyte composition of the present disclosure after 20 hours storage at 80°C.
  • electrolyte additives that: 1) are capable of improving the high temperature performance and stability (e.g. > 45 °C or 55°C) of lithium-ion cells, 2) provide electrolyte stability at high voltages (e.g. > 4.2V) for increased energy density, and 3) enable new high capacity electrode materials (e.g., silicon alloy anodes), may be desired.
  • catenated heteroatom means an atom other than carbon (for example, oxygen, nitrogen, or sulfur) that is bonded to at least two carbon atoms in a carbon chain (linear or branched or within a ring) so as to form a carbon-heteroatom-carbon linkage.
  • electrochemical cells having electrolytes that include the cyano silanes of the present disclosure may reduce capacity fade, cell swelling, and impedance rise at elevated temperatures or under high voltage cycling/storage.
  • the unexpected efficacy of the present cyano silanes at low loadings and their low manufacturing cost can lead to a reduction in overall electrolyte additive cost per electrochemical cell. Indeed, reduction in material costs is an important factor in the adoption of lithium-ion battery technology in new applications (e.g., electric vehicles, renewable energy storage).
  • R is a linear, branched, or cyclic alkylene group having from 1 to 8, 2 to 5, or 2 to 3 carbon atoms, and optionally includes one or more catenary heteroatoms; x is 1- 3, 2-3, or 3; and y is 0-5, 1-5, 2-4, or 2-3.
  • the cyano silanes may be selected from (CH 3 CH 2 0) 3 Si(CH 2 )2CN and (CH 3 CH 2 0) 3 Si(CH2)3CN.
  • the cyano silanes of the present disclosure have the boiling points indicated in Table 1. As can be seen from Table 1, when y is 2-4, the boiling point of the cyano silane is greater than 80°C, and when y is 1 or 5 the boiling point of the cyano silane is less than 80°C.
  • variable y of formula (I) may be 2-4 or 2-3.
  • the cyano silanes of formula (I) may be present in the electrolyte solution in an amount of between 0.01 and 40 wt.%, 0.01 and 20 wt.%, 0.1 and 15 wt.%), 0.1 and 10 wt.%>, 0.5 and 10 wt.%>, or 0.5 and 5 wt.%>, based on the total weight of the electrolyte solution.
  • the electrolyte solutions of the present disclosure may include fluoroethylene carbonate (FEC) as a component (e.g., solvent component, additive component).
  • the FEC may be present as, for example, either or both of monofluoro ethylene carbonate and difluoro ethylene carbonate.
  • FEC may be present in the electrolyte solutions of the present disclosure in an amount of 1-60 wt. %, 5-50 wt. %, 10-40 wt. %, 10-30 wt. %, or 20-30 wt. %, based on the total weight of the electrolyte solution.
  • the electrolyte solutions may include one or more solvents.
  • the solvent may include one or more organic carbonates. Examples of suitable solvents include ethylene carbonate, diethyl carbonate, dimethyl carbonate, ethyl methyl carbonate, vinylene carbonate, propylene carbonate,
  • organic polymer containing electrolyte solvents which can include solid polymer electrolytes or gel polymer electrolytes, may also be employed.
  • Organic polymers may include polyethylene oxide, polypropylene oxide, ethylene oxide/propylene oxide copolymers, polyacrylonitrile, polyvinylidene fluoride, vinylidene fluoride-hexafluoropropylene copolymers, and poly- [bis((methoxyethoxy)ethoxy)phosphazene] (MEEP), or combinations thereof.
  • the solvents may be present in the electrolyte solution in an amount of between 15 and 98 wt.%, 25 and 95 wt.%, 50 and 90 wt.%, or 70 and 90 wt.%, based on the total weight of the electrolyte solution.
  • the electrolyte solution may include one or more electrolyte salts.
  • the electrolyte salts may include lithium salts and, optionally, other salts such as sodium salts (e.g., NaPF 6 ).
  • Suitable lithium salts may include LiPF 6 , L1BF4, L1CIO4, lithium bis(oxalato)borate, LiN(S0 2 CF 3 ) 2 , LiN(S0 2 C 2 F 5 )2, LiAsFe,
  • the lithium salts may include LiPF 6 , lithium
  • the lithium salts may include LiPF 6 and either or both of lithium bis(oxalato)borate and LiN(SC"2CF 3 )2.
  • the electrolyte salts may be present in the electrolyte solution in an amount of between 2 and 85 wt%, 5 and 75 wt%, 10 and 50 wt%, or 10 and 30 wt%, based on the total weight of the electrolyte solution.
  • the electrolyte solutions of the present disclosure may also include one or more electrolyte additives such as any one of or any combination of, for example, vinylene carbonate (VC), propane-1,3- sultone (PS), prop-l-ene-l,3-sultone (PES), succinonitrile (SN), l,5,2,4-dioxadithiane-2,2,4,4-tetraoxide (MMDS), lithium bis(oxalate)borate (LiBOB), lithium difluoro(oxalato)borate (LiDFOB), tris(trimethylsilyl)phosphite (TTSPi), ethylene sulfite (ES), l,3,2-dioxathiolan-2,2-oxide (DTD), vinyl ethylene carbonate(VEC), trimethylene sulfite (TMS), tri-allyl-phosphate (TAP), methyl phenyl carbonate (MPC), diphenyl carbonate (D
  • the additional electrolyte additives may be present, individually or in combination, in an amount of between 0.1 and 5 wt%, 0.5 and 5 wt%, 1 and 5 wt%, or 1 and 3 wt%, based on the total weight of the electrolyte solution.
  • the present disclosure is further directed to electrochemical cells that include the above-described electrolyte solutions.
  • the electrochemical cells may include at least one positive electrode, at least one negative electrode, and a separator.
  • the positive electrode may include a current collector having disposed thereon a positive electrode composition.
  • the current collector for the positive electrode may be formed of a conductive material such as a metal. According to some embodiments, the current collector includes aluminum or an aluminum alloy.
  • the thickness of the current collector is 5 ⁇ to 75 ⁇ . It should also be noted that while the positive current collector may be described as being a thin foil material, the positive current collector may have any of a variety of other configurations according to various exemplary embodiments.
  • the positive current collector may be a grid such as a mesh grid, an expanded metal grid, a
  • the positive electrode composition may include an active material.
  • the active material may include a lithium metal oxide or lithium metal phosphate.
  • the active material may include lithium transition metal oxide intercalation compounds such as LiCoCte, LiCoo.2Nio.8O2, LiMmC ⁇ , LiFePC"4, LiNiCh, or lithium mixed metal oxides of manganese, nickel, and cobalt in any proportion. Blends of these materials can also be used in positive electrode compositions.
  • Other exemplary cathode materials are disclosed in U.S. Patent No. 6,680, 145 (Obrovac et al.) and include transition metal grains in combination with lithium-containing grains.
  • Suitable transition metal grains include, for example, iron, cobalt, chromium, nickel, vanadium, manganese, copper, zinc, zirconium, molybdenum, niobium, or combinations thereof with a grain size no greater than about 50 nanometers.
  • Suitable lithium-containing grains can be selected from lithium oxides, lithium sulfides, lithium halides (e.g., chlorides, bromides, iodides, or fluorides), or combinations thereof.
  • the positive electrode composition can be provided on only one side of the positive current collector or it may be provided or coated on both sides of the current collector.
  • the thickness of the positive electrode composition may be 0.1 ⁇ to 3 mm, 10 ⁇ to 300 ⁇ , or 20 ⁇ to 90 ⁇ .
  • the negative electrode may include a current collector and a negative electrode composition disposed on the current collector.
  • the current collector of the negative electrode may be formed of a conductive material such as a metal.
  • the current collector includes copper or a copper alloy, titanium or a titanium alloy, nickel or a nickel alloy, or aluminum or an aluminum alloy.
  • the thickness of the current collector may be 5 ⁇ to 75 ⁇ .
  • the current collector of the negative electrode may be described as being a thin foil material, the current collector may have any of a variety of other configurations according to various exemplary embodiments.
  • the current collector of the negative electrode may be a grid such as a mesh grid, an expanded metal grid, a photochemically etched grid, or the like.
  • the negative electrode composition may include an active material (e.g., a material that is capable of intercalating or alloying with lithium.)
  • the active material may include lithium metal, carbonaceous materials, or metal alloys (e.g., silicon alloy composition or lithium alloy compositions).
  • Suitable carbonaceous materials can include synthetic graphites such as mesocarbon microbeads (MCMB) (available from China Steel, Taiwan, China ) , SLP30 (available from TimCal Ltd., Bodio Switzerland), natural graphites and hard carbons.
  • Suitable alloys may include electrochemically active components such as silicon, tin, aluminum, gallium, indium, lead, bismuth, and zinc and may also include electrochemically inactive components such as iron, cobalt, transition metal silicides and transition metal aluminides.
  • the active material of the negative electrode may include a silicon alloy.
  • the active material of the negative electrode may include a silicon alloy that includes silicon, one or more transition metals, and carbon.
  • the active material of the negative electrode may include a silicon alloy material having the formula II:
  • w may be between 50% and 90%, 65% and 85%, 70% and 80%, or 72% and 77%; x may be between 5% and 20%, 12% and 20%, or 14% and 18%; y may be between 2% and 15%, 5% and 12%), or 8%) and 12%.
  • the silicon alloy material may be described as one or more active phases and one or more inactive phases.
  • the negative electrode composition may further include additives such as binders (e.g., polymeric binders (e.g., polyvinylidene fluoride or styrene butadiene rubber (SBR)), conductive diluents (e.g., carbon black and/or carbon
  • the battery may be provided as a button cell battery, a thin film solid state battery, or as another lithium ion battery configuration.
  • the separator can be a polymeric material such as a polypropylene/polyethylene copolymer or another polyolefin multilayer laminate that includes micropores formed therein to allow electrolyte and lithium ions to flow from one side of the separator to the other.
  • the thickness of the separator may be between approximately 10 micrometers ( ⁇ ) and 50 ⁇ according to an exemplary embodiment.
  • the average pore size of the separator may be between approximately 0.02 ⁇ and 0.1 ⁇ .
  • the present disclosure is further directed to electronic devices that include the above-described electrochemical cells.
  • the disclosed electrochemical cells can be used in a variety of devices including, without limitation, portable computers, tablet displays, personal digital assistants, mobile telephones, motorized devices (e.g., personal or household appliances and vehicles), power tools, illumination devices, and heating devices.
  • the present disclosure relates to methods of making the cyano silanes of formula (I).
  • the resulting cyano silane of formula (I) may then be isolated using conventional techniques prior to formulation into a battery electrolyte.
  • the present disclosure further relates to methods of making the above-described electrolyte solutions.
  • the method may include combining one or more of the above described solvent(s), one or more of the above-described electrolyte salts, and one or more of the above described cyano silanes having formula (I).
  • the method may further include combining these components in the relative amounts discussed above.
  • the present disclosure further relates to methods of making an electrochemical cell.
  • the method may include providing the above-described negative electrode, providing the above-described positive electrode, and incorporating the negative electrode and the positive electrode into a battery comprising the above-described electrolyte solution.
  • An electrolyte solution comprising:
  • R is a linear, branched, or cyclic alkylene group having from 1 to 5 carbon atoms, and optionally includes one or more catenary heteroatoms; x is 1-3; and y is 1-5.
  • electrolyte solution according to any one of embodiments 1-2, wherein the electrolyte solution comprises FEC in an amount of between 5 and 50 wt. %, based on the total weight of the electrolyte solution. 4. The electrolyte solution according to any one of embodiments 1-3, wherein the cyano silane has a boiling point of greater than 80°C.
  • An electrochemical cell comprising:
  • the silicon alloy comprises silicon, a transition metal, and carbon.
  • the positive electrode comprises an active material, the active material comprising a lithium metal oxide or a lithium metal phosphate.
  • a method of making an electrolyte solution comprising:
  • a method of forming an electrochemical cell comprising:
  • Dry pouch cells (240 mAh) were obtained without electrolyte from Li-Fun Technology Corporation (Xinma Industry Zone, China).
  • the positive electrode composition was LiCo02:Carbon Black:PVDF Binder (96.2%: 1.8%:2.0%, Li-Fun Technology Corporation).
  • the negative electrode was Si alloy (C7-4A36, 3M Company, USA): Si alloy (MAGE, Hitachi Chemical, Japan): conductive carbon (KS6L, Timcal, Japan): SBR (X3, Zeon Corporation, Japan):CMC (2200, Daicel FineChem Ltd., Japan) in a ratio of 15%:72.3%: 10%: 1.5%: 1.2%.
  • the positive electrode coating had a thickness of 93 ⁇ .
  • the negative electrode coating had thickness of 44 ⁇ , a loading of 6.6 mg/cm 2 and was calendered to 30% porosity.
  • the positive electrode dimensions were 187 mm x 26 mm and the negative electrode dimensions were 191 mm x 28 mm.
  • Both electrodes were coated on both sides, except for small regions on one side at the end of the foils. All pouch cells were vacuum sealed without electrolyte by the manufacturer in China. Before electrolyte filling, the cells were cut just below the heat seal and dried at 80°C under vacuum for at least 14 h to remove any residual water in a dry room with a dew point of -40 °C. While still in the dry room, the cells were filled with electrolyte and vacuum sealed. All pouches were filled with 0.65 mL of electrolyte. After filling, cells were vacuum-sealed with a vacuum sealer (MSK-115 A, MTI Corp. USA).
  • the Li ion pouch cells were cycled with a Maccor 4000 Series cycler (available from Maccor Inc, Tulsa, OK) in a temperature controlled oven at 45 ⁇ 0.1 °C. After the formation cycle described above the cells were charged a 100 mA (C/2) up to 4.3 V and held at 4.3 V until the current dropped to 10 mA (C/20), left to rest open circuit for 15 minutes, then discharged at 100 mA (C/2) until the voltage reached 3.0 V, and then left to rest open circuit for 15 minutes. This cycling was repeated and every 50 cycles a slow cycle was performed which consisted in charging at 10 mA (C/20) up to 4.3 V, resting 15 minutes, discharging at 10 mA down to 3.0 V and resting 15 minutes. This cycling procedure was performed for at least 200 cycles.
  • a Maccor 4000 Series cycler available from Maccor Inc, Tulsa, OK
  • the cycling/storage procedure used in these tests is described as follows. Cells were first charged to 4.35V and discharged to 3.0 V five times. Then the cells were charged to 4.35 at a current of C/20 (11 mA) and then held at 4.35 V until the measured current decreased to C/20. A Maccor series 4000 cycler was used for the preparation of the cells prior to storage. After the pre-cycling process, cells were carefully moved to the storage system which monitored their open circuit voltage every 1 hour. Storage experiments were made at 60 ⁇ 0.1°C for a total storage time of 300 hours and 80 ⁇ 0.1°C for a total storage time of 4 hours. The voltage drop, impedance, and cell volume were measured before and after storage.
  • the open circuit voltage of Li-ion pouch cells was monitored and measured before, during, and after storage at 60°C for 300 hours.
  • the voltage drop (AV) is described in Equation 1.
  • DCR Direct current resistance
  • Ex-situ (static) gas measurements were used to measure gas evolution during storage. The measurements were made using Archimedes' principle with cells suspended from a balance while submerged in liquid. The changes in the weight of the cell suspended in fluid, before and after testing are directly related to the change in cell volume due to the impact on buoyant force.
  • the change in mass of a cell, Am, suspended in a fluid of density, p, is related to the change in cell volume, ⁇ , by
  • Table 2 shows additives that were added to the formulated electrolyte stock solution containing 0.83 M LiPFe in EC:EMC:FEC at a ratio of 2.4:5.6:2 by weight. These electrolytes were then used in the lithium ion pouch cells containing the LCO cathode and Si alloy anode.
  • Figure 1A shows 19 F NMR spectrum of the baseline electrolyte (Comparative Example 1) after 20 hours storage at 80°C.
  • Figure IB shows 19 F NMR spectrum of the baseline electrolyte + 5.0 wt% CS2 (Example 1) after 20 hours storage at 80°C.
  • Figure 1C shows 19 F NMR spectrum of the baseline electrolyte + 5.0 wt% CS3 (Example 2) after 20 hours storage at 80°C.
  • the FIF was identified as a doublet appearing at -156 ppm in the 19 F NMR spectrum of the baseline electrolyte (splitting due to H-F coupling).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne une solution électrolytique comprenant un solvant ; un sel électrolytique ; et un cyano-silane ayant la formule (I) : . Dans la formule (I), R est un groupe linéaire, ramifié, ou alkylène cyclique ayant de 1 à 5 atomes de carbone, et comprend éventuellement un ou plusieurs hétéroatomes caténaires ; x est 1-3 ; et y est 1-5.
PCT/IB2017/056267 2016-10-20 2017-10-10 Solutions électrolytiques et cellules électrochimiques les contenant Ceased WO2018073694A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662410503P 2016-10-20 2016-10-20
US62/410,503 2016-10-20

Publications (2)

Publication Number Publication Date
WO2018073694A2 true WO2018073694A2 (fr) 2018-04-26
WO2018073694A3 WO2018073694A3 (fr) 2018-11-08

Family

ID=62019062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/056267 Ceased WO2018073694A2 (fr) 2016-10-20 2017-10-10 Solutions électrolytiques et cellules électrochimiques les contenant

Country Status (2)

Country Link
TW (1) TW201823256A (fr)
WO (1) WO2018073694A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111740160A (zh) * 2018-09-21 2020-10-02 宁德新能源科技有限公司 电解液和包含该电解液的电化学装置
CN111883844A (zh) * 2020-07-24 2020-11-03 香河昆仑化学制品有限公司 一种含有机硅化合物的电解液以及电池负极和电化学储能器件
CN112271336A (zh) * 2020-11-25 2021-01-26 广州天赐高新材料股份有限公司 一种电解液及锂二次电池
CN113692669A (zh) * 2019-05-02 2021-11-23 株式会社Lg新能源 锂二次电池用电解质和包含该电解质的锂二次电池
CN114342143A (zh) * 2019-09-02 2022-04-12 孚能科技(赣州)股份有限公司 一种硅氰基磺酸内酯化合物、锂离子电池电解液和锂离子二次电池
CN115621551A (zh) * 2022-10-14 2023-01-17 远景动力技术(江苏)有限公司 电解液、电化学装置和电子装置
CN117352842A (zh) * 2023-10-31 2024-01-05 广东省豪鹏新能源科技有限公司 电解液及锂离子电池

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040562A1 (de) * 2009-09-08 2011-03-10 Li-Tec Battery Gmbh Additiv für Elektrolyte in elektrochemischen Zellen
US8871987B2 (en) * 2010-12-10 2014-10-28 E I Du Pont De Nemours And Company Purification of cis-1,1,1,4,4,4-hexafluoro-2-butene via extractive distillation
CN107210490A (zh) * 2015-02-04 2017-09-26 3M创新有限公司 包含路易斯酸：路易斯碱复合物电解质添加剂的电化学电池

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111740160A (zh) * 2018-09-21 2020-10-02 宁德新能源科技有限公司 电解液和包含该电解液的电化学装置
US12300787B2 (en) 2018-09-21 2025-05-13 Ningde Amperex Technology Limited Electrolyte and electrochemical device including the same
US12125982B2 (en) 2018-09-21 2024-10-22 Ningde Amperex Technology Limited Electrolyte and electrochemical device comprising the same
US12125983B2 (en) 2018-09-21 2024-10-22 Ningde Amperex Technology Limited Electrolyte and electrochemical device including the same
US11901513B2 (en) 2018-09-21 2024-02-13 Ningde Amperex Technology Limited Electrolyte and electrochemical device comprising the same
US11888120B2 (en) 2018-09-21 2024-01-30 Ningde Amperex Technology Limited Electrolyte and electrochemical device comprising the same
CN113692669B (zh) * 2019-05-02 2023-12-29 株式会社Lg新能源 锂二次电池用电解质和包含该电解质的锂二次电池
EP3940851A4 (fr) * 2019-05-02 2022-06-01 LG Energy Solution, Ltd. Électrolyte pour batterie secondaire au lithium, et batterie secondaire au lithium le comprenant
CN113692669A (zh) * 2019-05-02 2021-11-23 株式会社Lg新能源 锂二次电池用电解质和包含该电解质的锂二次电池
US12125981B2 (en) 2019-05-02 2024-10-22 Lg Energy Solution, Ltd. Electrolyte for lithium secondary battery and lithium secondary battery including the same
CN114342143A (zh) * 2019-09-02 2022-04-12 孚能科技(赣州)股份有限公司 一种硅氰基磺酸内酯化合物、锂离子电池电解液和锂离子二次电池
CN114342143B (zh) * 2019-09-02 2024-04-16 孚能科技(赣州)股份有限公司 一种硅氰基磺酸内酯化合物、锂离子电池电解液和锂离子二次电池
CN111883844A (zh) * 2020-07-24 2020-11-03 香河昆仑化学制品有限公司 一种含有机硅化合物的电解液以及电池负极和电化学储能器件
CN112271336B (zh) * 2020-11-25 2021-08-27 广州天赐高新材料股份有限公司 一种电解液及锂二次电池
CN112271336A (zh) * 2020-11-25 2021-01-26 广州天赐高新材料股份有限公司 一种电解液及锂二次电池
CN115621551A (zh) * 2022-10-14 2023-01-17 远景动力技术(江苏)有限公司 电解液、电化学装置和电子装置
CN117352842A (zh) * 2023-10-31 2024-01-05 广东省豪鹏新能源科技有限公司 电解液及锂离子电池

Also Published As

Publication number Publication date
TW201823256A (zh) 2018-07-01
WO2018073694A3 (fr) 2018-11-08

Similar Documents

Publication Publication Date Title
US20180006329A1 (en) Electrochemical cells that include lewis acid: lewis base complex electrolyte additives
WO2020175907A1 (fr) Électrolyte pour accumulateur au lithium et accumulateur au lithium le comprenant
WO2018073694A2 (fr) Solutions électrolytiques et cellules électrochimiques les contenant
KR101937898B1 (ko) 비수 전해액 첨가제, 이를 포함하는 비수전해액 및 이를 구비한 리튬 이차전지
JP5907682B2 (ja) リチウム２次電池の正極保護膜用組成物、前記正極保護膜を含むリチウム２次電池およびその製造方法
CN103931030B (zh) 锂离子二次电池及其制造方法
EP3317911B1 (fr) Électrolyte de batterie de li-ion avec l'accumulation d'impédance réduite
KR101665893B1 (ko) 비수 전해액 이차 전지
CN109716578B (zh) 包含双官能膦酸甲硅烷基酯的电化学电池
KR20180025917A (ko) 이소시아나이드를 포함하는 리튬-이온 전지용 비수성 전해질
KR20070090034A (ko) 2차전지용 비수전해질 및 그것을 포함하는 2차전지
WO2017192425A1 (fr) Solutions électrolytiques pour batteries rechargeables
WO2022054338A1 (fr) Batterie secondaire au lithium
US20140087248A1 (en) Nonaqueous electrolyte rechargeable battery
EP4657592A1 (fr) Dispositif électrochimique et dispositif électronique
KR101651143B1 (ko) 사이클 수명이 개선된 리튬 이차전지
US20190140309A1 (en) Electrolyte solutions and electrochemical cells containing same
WO2016021596A1 (fr) Batterie rechargeable au lithium et son procédé de fabrication
JP4949223B2 (ja) 非水電解質およびこれを含む二次電池
JP6747312B2 (ja) 非水電解質、蓄電素子及び蓄電素子の製造方法
WO2018043369A1 (fr) Dispositif de stockage d'électricité à électrolyte non aqueux
KR20180042739A (ko) 리튬이차전지 전해질용 첨가제, 및 이를 포함하는 리튬이차전지 전해질 및 리튬이차전지
KR101651142B1 (ko) 사이클 수명이 개선된 리튬 이차전지
JP7407378B2 (ja) 正極活物質及びそれを用いた二次電池
JP5369017B2 (ja) リチウムイオン二次電池用電解液及びリチウムイオン二次電池

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: 17862445

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17862445

Country of ref document: EP

Kind code of ref document: A2