WO2024253575A1 - Procédé d'amélioration d'une batterie au sodium-ion et batterie au sodium-ion améliorée - Google Patents

Procédé d'amélioration d'une batterie au sodium-ion et batterie au sodium-ion améliorée Download PDF

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Publication number
WO2024253575A1
WO2024253575A1 PCT/SG2024/050163 SG2024050163W WO2024253575A1 WO 2024253575 A1 WO2024253575 A1 WO 2024253575A1 SG 2024050163 W SG2024050163 W SG 2024050163W WO 2024253575 A1 WO2024253575 A1 WO 2024253575A1
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WO
WIPO (PCT)
Prior art keywords
sodium
ion battery
voltage
electrode
charge
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/SG2024/050163
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English (en)
Inventor
Chang Chieh Hang
Yoshihiko Kinoshita
Koichi Fukuda
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.)
Sodion Energy Pte Ltd
Original Assignee
Sodion Energy Pte Ltd
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 Sodion Energy Pte Ltd filed Critical Sodion Energy Pte Ltd
Publication of WO2024253575A1 publication Critical patent/WO2024253575A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • 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
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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

  • This invention relates to a method of improving a sodium-ion battery and an improved sodium-ion battery.
  • a method of improving a sodium-ion battery comprising: a) momentarily applying a first voltage to a first electrode of the sodium-ion battery having a state of charge in a range of 0-25%; and b) momentarily applying a second voltage to a second electrode of the sodium-ion battery.
  • the method may further comprise, after step b), repeating step a).
  • the method may further comprise, after repeating step a), repeating step b).
  • the sodium-ion battery has a state of charge of 0%.
  • momentarily applying the first voltage in step b) may be configured such that the sodium-ion battery remains uncharged after the first voltage has been momentarily applied.
  • the sodium-ion battery has a state of charge of 0%.
  • momentarily applying the second voltage in step c) may be configured such that the sodium-ion battery remains uncharged after the second voltage has been momentarily applied.
  • the sodium-ion battery that has a state of charge of 0% may be a newly produced sodium-ion battery before it is first charged for use.
  • an improved sodium-ion battery comprising: a first electrode to which a first voltage has been momentarily applied when the sodium-ion battery has a state of charge in a range of 0-25%; and a second electrode to which a second voltage has been momentarily applied when the sodium-ion battery has a state of charge in a range of 0-25%.
  • the the sodium-ion battery may have a state of charge of 0% and remain uncharged after the first voltage had been momentarily applied.
  • the sodium-ion battery may have a state of charge of 0% and remain uncharged after the second voltage has been momentarily applied.
  • the sodium-ion battery that has a state of charge of 0% may have been a newly produced sodium-ion battery before it was first charged for use.
  • the first voltage and the second voltage may each have one of: a DC rectangular wave form, a half sine wave form, and a combination of a DC rectangular' wave form and a half sine wave form.
  • the first electrode may be a negative electrode of the sodium-ion battery when the sodium-ion battery is charged for use and the second electrode may be a positive electrode of the sodium-ion battery when the sodium-ion battery is charged for use.
  • the first voltage and the second voltage may each range from 0.5V to 300V.
  • a duration of application of the first voltage and duration of application of the second voltage may each range from 1/1000 seconds to 1/2 seconds.
  • FIG. 1 is a schematic illustration of an exemplary embodiment of a sodium-ion battery during discharge.
  • FIG. 2 a flowchart of an exemplary method of improving the sodium-ion battery of FIG. 1.
  • FIG. 3A is schematic illustrations of active particles or molecules on an electrode surface of the sodium-ion battery before performing the method of FIG. 2.
  • FIG. 3B is schematic illustrations of active particles or molecules on an electrode surface of the sodium-ion battery after performing the method of FIG. 2.
  • FIG. 4 shows exemplary electric wave forms of various voltages that may be applied to electrodes of the sodium-ion battery.
  • FIG. 5 is schematic illustration of an exemplary apparatus for performing the method of FIG. 2.
  • sodium-ion battery includes graphene sodium-ion batteries and other variations of sodium-ion batteries.
  • an exemplary sodium-ion battery 110 comprises two electrodes 70 separated by a volume (or “sea”) of an electrolyte 30 that ionically connects the two electrodes 70 with positive sodium ions 50.
  • an ion-permeable separator 40 may be provided in the volume of the electrolyte 30 between the cathode 10 and the anode 20 to prevent contact of the cathode 10 with the anode 20.
  • Each electrode 70 comprises a current/electron collector 90.
  • Each current collector 90 is connected to a terminal 18, 28 of the sodium-ion battery 110. The terminals 18, 28 are provided for connection with an external circuit (not shown).
  • the external circuit may include an external device that is to be powered by the sodium-ion battery 110, or may include an energy source to charge the sodium-ion battery 1 10.
  • the negative electrode 70 is termed the cathode 10 and the positive electrode 70 is termed the anode 20.
  • one of the electrodes 70 may be treated with a sodium ion compound 62 in order to serve as the cathode 10, while the other of the electrodes 70 may be treated with hard carbon 64 to serve as the anode 20.
  • Sodium ions 50 in the electrolyte 30 move between the two electrodes 70 during charging and discharging of the battery 110.
  • Direction of movement of the sodium ions 50 during discharging of the battery 10 is from the negative cathode 10 to the positive anode 20 as indicated by the arrow in FIG. 1.
  • the direction of movement of the sodium ions 50 is reversed during charging of the battery 110, i.e., from the anode 20 to the cathode 10.
  • a sodium-ion battery 110 that has a state of charge in a range of 0% to 25% is provided (210).
  • the battery may have an open circuit voltage of 0-0.55V corresponding to the state of charge range of 0-25%.
  • the method may be applied to sodium- ion batteries having a state of charge of other ranges, such as but not limited to, 0-20%, 0- 15%, 0-10%, 0-5%, 0-2.5%, 0-1.25%, etc.
  • the method may also be applied to sodium-ion batteries having no charge, i.e. a state of charge of 0%.
  • a sodium-ion battery 1 10 having a factory specification charge storage capacity of 2,300 mAh was treated using the method 200 described above, wherein the first voltage of 70V was applied to the cathode 10 while the battery 110 was yet uncharged, and the second voltage of 70V was applied to the anode 20 after application of the first voltage. Both the first and second voltages applied were rectangular DC as shown in FIG. 4A. The current during application of the first and second voltages was estimated to be 3A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un procédé d'amélioration d'une batterie au sodium-ion, le procédé comprenant : a) l'application momentanée d'une première tension à une première électrode de la batterie au sodium-ion ayant un état de charge dans la plage de 0 à 25 % ; et b) l'application momentanée d'une seconde tension à une seconde électrode de la batterie au sodium-ion. Une batterie au sodium-ion améliorée comprend : une première électrode à laquelle une première tension est momentanément appliquée lorsque la batterie au sodium-ion a un état de charge dans une plage de 0 à 25 % ; et une seconde électrode à laquelle une seconde tension est momentanément appliquée lorsque la batterie sodium-ion a un état de charge dans la plage de 0 à 25 %.
PCT/SG2024/050163 2023-06-05 2024-03-19 Procédé d'amélioration d'une batterie au sodium-ion et batterie au sodium-ion améliorée Ceased WO2024253575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10202301575S 2023-06-05
SG10202301575S 2023-06-05

Publications (1)

Publication Number Publication Date
WO2024253575A1 true WO2024253575A1 (fr) 2024-12-12

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PCT/SG2024/050163 Ceased WO2024253575A1 (fr) 2023-06-05 2024-03-19 Procédé d'amélioration d'une batterie au sodium-ion et batterie au sodium-ion améliorée

Country Status (1)

Country Link
WO (1) WO2024253575A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251953A (zh) * 1998-10-21 2000-05-03 钟阳 提高充电电池循环使用寿命的充电方法
CN114976267A (zh) * 2022-06-22 2022-08-30 南京工业职业技术大学 一种钠离子单体电池的化成方法
CN116365004A (zh) * 2023-02-14 2023-06-30 深圳市誉娇诚科技有限公司 一种钠离子电池的化成方法
CN117039216A (zh) * 2023-07-28 2023-11-10 力神（青岛）新能源有限公司 钠离子电池化成方法
CN117080593A (zh) * 2023-09-06 2023-11-17 湖州超钠新能源科技有限公司 一种改善钠离子电池低温性能的充电方法
CN117638272A (zh) * 2023-12-07 2024-03-01 吉安市优特利科技有限公司 一种钠离子电池sei膜化成方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251953A (zh) * 1998-10-21 2000-05-03 钟阳 提高充电电池循环使用寿命的充电方法
CN114976267A (zh) * 2022-06-22 2022-08-30 南京工业职业技术大学 一种钠离子单体电池的化成方法
CN116365004A (zh) * 2023-02-14 2023-06-30 深圳市誉娇诚科技有限公司 一种钠离子电池的化成方法
CN117039216A (zh) * 2023-07-28 2023-11-10 力神（青岛）新能源有限公司 钠离子电池化成方法
CN117080593A (zh) * 2023-09-06 2023-11-17 湖州超钠新能源科技有限公司 一种改善钠离子电池低温性能的充电方法
CN117638272A (zh) * 2023-12-07 2024-03-01 吉安市优特利科技有限公司 一种钠离子电池sei膜化成方法

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