CN101552356A - Maintainable lithium ion battery and maintenance method thereof - Google Patents

Maintainable lithium ion battery and maintenance method thereof Download PDF

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Publication number
CN101552356A
CN101552356A CNA2009100151392A CN200910015139A CN101552356A CN 101552356 A CN101552356 A CN 101552356A CN A2009100151392 A CNA2009100151392 A CN A2009100151392A CN 200910015139 A CN200910015139 A CN 200910015139A CN 101552356 A CN101552356 A CN 101552356A
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CN
China
Prior art keywords
battery
lithium
passage
ion battery
hollow tube
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.)
Pending
Application number
CNA2009100151392A
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Chinese (zh)
Inventor
林道勇
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.)
Shandong Realforce Group New Energy Science And Technology Co Ltd
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Shandong Realforce Group New Energy Science And Technology Co Ltd
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Application filed by Shandong Realforce Group New Energy Science And Technology Co Ltd filed Critical Shandong Realforce Group New Energy Science And Technology Co Ltd
Priority to CNA2009100151392A priority Critical patent/CN101552356A/en
Publication of CN101552356A publication Critical patent/CN101552356A/en
Priority to PCT/CN2010/072726 priority patent/WO2010130218A1/en
Pending legal-status Critical Current

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    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • 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
    • 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
    • H01M10/4242—Regeneration of electrolyte or reactants
    • 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
    • H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
    • 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
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H01M50/645—Plugs
    • 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

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

Abstract

The invention relates to a maintainable lithium ion battery, which comprises a battery cell, a battery shell body, a battery anode post and a battery cathode post. The battery cell is arranged in the battery shell body and the battery anode post and the battery cathode post are arranged on the battery shell body on which at least one channel that is used for communicating the inside of the batter shell body and the outside is arranged. An openable sealing device is arranged at an exit of the channel communicated with the outside. Simultaneously, the invention also provides a maintenance method of the maintainable lithium ion battery, which includes such steps as removing gas in the battery through the channel, adding electrolyte, vacuumization and the like. The invention can effectively improve the performance of the lithium ion battery, thus more effectively utilizing the lithium ion battery and being beneficial to saving cost.

Description

Maintainable lithium-ion battery and maintaining method thereof
Technical field
The present invention relates to a kind of lithium ion battery, relate in particular to a kind of maintainable lithium-ion battery.
Background technology
Lithium ion battery is since nineteen nineties succeeds in developing, because it has the energy height, have extended cycle life, operating voltage height, special advantages such as pollution-free, now be widely used in the electronic apparatuss such as mobile phone, digital camera, notebook computer, and progressively to electric bicycle, electric automobile, high-capacity dynamical lithium-ion battery applications such as stand-by power supply are expanded.If lithium ion battery can be divided into two kinds by the battery case packaged form, a kind of is the duricrust lithium ion battery, usually with box hat, aluminum hull and plastic housing packing; Another kind is a flexible packing lithium ion battery, with soft aluminum-plastic composite membrane packing, also is divided into liquid flexible packing lithium ion electric pond and polymer Li-ion battery two classes usually.
The operation principle of lithium ion battery is: during battery charge, lithium ion in the positive electrode (LiMn2O4, LiFePO 4, ternary material, cobalt acid lithium etc.) takes off embedding and comes out, pass to electrolyte and process electrolyte, pass barrier film and enter into negative material (graphite etc.); During battery discharge, lithium ion takes off embedding again and comes out from negative material (graphite etc.), passes to electrolyte and process electrolyte, passes barrier film and gets back in the positive electrode (LiMn2O4, LiFePO 4, ternary material, cobalt acid lithium etc.).With the carrying out that discharges and recharges, lithium ion constantly embeds in anodal and negative pole by electrolyte and deviates from, and visible electrolyte occupies important function in lithium ion battery.
Power lithium-ion battery mainly contains following two characteristics: one, the capacity of cell is generally higher, and cost is higher, and is also very high to performance requirement; Two, cell generally will carry out series and parallel, uses to constitute battery pack, owing to have conforming difference between the cell, can have behindhand battery in the battery pack.In actual use, battery pack have problem generally just wherein a small part cell, when capacity attenuation fast, during charging voltage rise fast, discharge voltage descend problem such as fast low such as battery capacity appears, cause whole Battery pack to go wrong.And the cell that goes wrong, to a great extent owing to following two reasons cause: one, because some side reaction meetings that inside battery produces consume electrolyte, the electrolyte that causes participating in cell reaction is very few, influence the transmission of lithium ion in battery, thereby battery performance is damaged; Two, because some side reaction meetings that inside battery produces produce pernicious gas, and pernicious gas that produces and battery material react or remain in the transmission that influences lithium ion between positive electrode, negative material and the barrier film, further damage the performance of battery.
Because lithium ion battery is very responsive to moisture content, a spot of water just can cause fatefulue destruction to the performance of lithium ion battery, so seals fully during the lithium ion battery use, and this sealing of traditional manufacture method is expendable.
Therefore make lithium ion battery with conventional method, after battery goes wrong, do not repair way substantially, because the first can not realize the pernicious gas in the battery is discharged; The 2nd, can not realize to replenishing electrolyte in the battery, to improve the performance of battery.
Summary of the invention
The objective of the invention is to avoid the deficiencies in the prior art that a kind of maintainable lithium-ion battery and maintaining method thereof are provided, on lithium ion battery, be provided with openable passage, when battery damages, can safeguard, be convenient to for the cell row removing and harmful gas, add electrolyte.
For achieving the above object, the technical scheme that the present invention takes is: a kind of maintainable lithium-ion battery, comprise battery, battery container, the positive and negative pole of battery, described battery is arranged in the battery container, battery positive and negative pole be arranged on the described battery container, also be provided with the passage that at least one is in communication with the outside the battery case enclosure interior on the described battery container, be provided with openable sealing device in the exit that described passage is in communication with the outside.
Further, at least one face of described battery container is a battery cover board, and the positive and negative pole of battery is arranged on the battery cover board.
Further, described battery cover board is provided with the passage that is in communication with the outside in the battery case housing, is provided with openable sealing device in the exit that described passage is in communication with the outside.
Further, be provided with a passage that the battery case enclosure interior is in communication with the outside at least one pole of described battery, be provided with openable sealing device in the exit that described passage is in communication with the outside.
Further, described openable sealing device is steel ball or aluminium lid or Xi Gai or rivet or screw or bolt.
Further, described passage is a hollow tube, and hollow tube one end is communicated with battery container is interior, and opposite side is communicated with battery is extraneous.
Further, described battery case can be box hat, aluminum hull and plastic housing.
Further, an end that is in communication with the outside at described hollow tube seals by Capsule.
Further, an end that is in communication with the outside at described hollow tube is provided with screw thread, seals by screw or bolt seal or by Capsule.
Further, described hollow tube has identical material or fusing point with described battery case.
A kind of method of safeguarding described lithium ion battery, described method may further comprise the steps:
1) passage that the battery case enclosure interior is in communication with the outside or hollow tube are opened;
2) extract the interior gas of lithium ion battery out by described passage or hollow tube, get rid of the gas in the lithium ion battery;
3) be that lithium ion battery is added electrolyte by described passage or hollow tube;
4) battery is left standstill with wetting;
5) be lithium ion battery vacuum-pumping by described passage or hollow tube;
6) with described passage or hollow tube sealing.
The invention has the beneficial effects as follows: on battery container or cover plate, establish openable passage, conveniently damage or the bad lithium ion battery of result of use are safeguarded, promptly get rid of gas in the battery, add electrolyte, step such as vacuumize by passage, can effectively improve the performance of lithium ion battery, thereby more effectively utilize lithium ion battery, help saving cost.
Passage is a hollow tube, utilizes hollow tube that lithium ion battery is safeguarded, more easy operating, need not distinctive vaccum-pumping equipment, liquid-injection equipment, wetting apparatus and can realize the maintenance of lithium ion battery, more the conserve batteries cost more helps effective utilization of battery, and can realize on-line maintenance.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of A part in the embodiment of the invention 2;
Fig. 4 is the structural representation of the embodiment of the invention 3;
Fig. 5 is the embodiment of the invention 5 maintaining method schematic flow sheets;
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1, as shown in Figure 1, a kind of maintainable lithium-ion battery, comprise battery 1, battery container 2, the positive and negative pole 3 of battery, described battery 1 is arranged in the battery container 2, face above described battery container is a battery cover board 5, and the positive and negative pole 3 of battery is arranged on the battery cover board 5.Described battery cover board 5 is provided with the passage 4 that is in communication with the outside in the battery case housing, is provided with openable sealing device 6 in the exit that described passage 4 is in communication with the outside.Described openable sealing device 6 is a bolt.
Embodiment 2, as Fig. 2, shown in Figure 3, identical with embodiment 1, be provided with a passage 4 that the battery case enclosure interior is in communication with the outside in the positive and negative pole 3 of different is described battery, be provided with openable sealing device 6 in the exit that described passage is in communication with the outside.
Embodiment 3, and is identical with embodiment 1 as Fig. 4, and different is that described passage is a hollow tube 7, and hollow tube 7 one ends are communicated with battery container is interior, and opposite side is communicated with battery is extraneous.An end that is in communication with the outside at described hollow tube is provided with Capsule 8 and seals.
Embodiment 4, identical with embodiment 1, different is that described battery 1 is arranged in the battery container 2, the positive and negative pole 3 of battery is arranged on the described battery container 2, also be provided with the passage 4 that at least one is in communication with the outside the battery case enclosure interior on the described battery container 2, be provided with openable sealing device 6 in the exit that described passage 4 is in communication with the outside.
Embodiment 5, and as Fig. 5, the described method of the maintaining method of maintainable lithium-ion battery provided by the present invention may further comprise the steps:
101 passages that the battery case enclosure interior is in communication with the outside are opened;
102 by the gas in the described passage 4 extraction lithium ion batteries, gets rid of the gas in the lithium ion battery;
103 add electrolyte by described passage 4 for lithium ion battery;
104 leave standstill battery with wetting after adding electrolyte;
105 by described passage 4 be lithium ion battery vacuum-pumping;
106 with described passage 4 sealings.
In the process that said method carries out, employed vaccum-pumping equipment adopts general vacuum pump to realize, fluid injection adopts simple device to finish, the service equipment cost is low, the maintenance process of battery is also simple to operation, not only help making full use of of lithium ion battery, more help prolonging the life-span and the result of use of lithium ion battery, and can realize on-line maintenance.
Embodiment 6, and is identical with the method for embodiment 5, and different is that described passage is a hollow tube, and maintaining method is realized by hollow tube.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. maintainable lithium-ion battery, comprise battery, battery container, the positive and negative pole of battery, described battery is arranged in the battery container, and the positive and negative pole of battery is arranged on the described battery container, it is characterized in that, also be provided with the passage that at least one is in communication with the outside the battery case enclosure interior on the described battery container, be provided with openable sealing device in the exit that described passage is in communication with the outside.
2. maintainable lithium-ion battery as claimed in claim 1 is characterized in that, at least one face of described battery container is a battery cover board, and the positive and negative pole of battery is arranged on the battery cover board.
3. maintainable lithium-ion battery as claimed in claim 2 is characterized in that described battery cover board is provided with the passage that is in communication with the outside in the battery case housing, is provided with openable sealing device in the exit that described passage is in communication with the outside.
4. maintainable lithium-ion battery as claimed in claim 1, it is characterized in that, be provided with a passage that the battery case enclosure interior is in communication with the outside at least one pole of described battery, be provided with openable sealing device in the exit that described passage is in communication with the outside.
5. as claim 1 or 3 or 4 described maintainable lithium-ion batteries, it is characterized in that described openable sealing device is steel ball or aluminium lid or Xi Gai or rivet or screw or bolt.
6. as claim 1 or 2 or 3 or 4 described maintainable lithium-ion batteries, it is characterized in that described passage is a hollow tube, hollow tube one end is communicated with battery container is interior, and opposite side is communicated with battery is extraneous.
7. as claim 1 or 2 or 3 or 4 described maintainable lithium-ion batteries, it is characterized in that described battery case is box hat or aluminum hull or plastic housing.
8. maintainable lithium-ion battery as claimed in claim 6 is characterized in that, an end that is in communication with the outside at described hollow tube seals by Capsule.
9. maintainable lithium-ion battery as claimed in claim 6 is characterized in that, an end that is in communication with the outside at described hollow tube is provided with screw thread, seals by screw or bolt seal or by Capsule.
10. maintainable lithium-ion battery as claimed in claim 6 is characterized in that, described hollow tube has identical material or fusing point with described battery case.
11. the method for arbitrary described lithium ion battery in maintenance such as the claim 1 to 10 is characterized in that described method may further comprise the steps:
1) passage that the battery case enclosure interior is in communication with the outside or hollow tube are opened;
2) extract the interior gas of lithium ion battery out by described passage or hollow tube, get rid of the gas in the lithium ion battery;
3) be that lithium ion battery is added electrolyte by described passage or hollow tube;
4) battery is left standstill with wetting;
5) be lithium ion battery vacuum-pumping by described passage or hollow tube;
6) with described passage or hollow tube sealing.
CNA2009100151392A 2009-05-14 2009-05-14 Maintainable lithium ion battery and maintenance method thereof Pending CN101552356A (en)

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CNA2009100151392A CN101552356A (en) 2009-05-14 2009-05-14 Maintainable lithium ion battery and maintenance method thereof
PCT/CN2010/072726 WO2010130218A1 (en) 2009-05-14 2010-05-13 Maintainable lithium-ion battery and maintenance method thereof

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Application Number Priority Date Filing Date Title
CNA2009100151392A CN101552356A (en) 2009-05-14 2009-05-14 Maintainable lithium ion battery and maintenance method thereof

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CN101552356A true CN101552356A (en) 2009-10-07

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010105565A1 (en) * 2009-03-17 2010-09-23 山东润峰集团新能源科技有限公司 Method for manufacturing lithium ion battery and package bag of lithium ion battery
WO2010130218A1 (en) * 2009-05-14 2010-11-18 山东润峰集团新能源科技有限公司 Maintainable lithium-ion battery and maintenance method thereof
WO2010130220A1 (en) * 2009-05-14 2010-11-18 山东润峰集团新能源科技有限公司 Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery
CN102055010A (en) * 2009-11-06 2011-05-11 夏普株式会社 Non-aqueous electrolyte secondary battery with filling function, and non-aqueous electrolyte secondary battery and non-aqueous electrolyte filling device used therefor
CN102163743A (en) * 2011-03-15 2011-08-24 余建岳 Vacuum explosion-proof lithium-ion battery
CN104600369A (en) * 2015-01-12 2015-05-06 山东神工海特电子科技有限公司 Liquid injecting, sealing and forming method of soft packaging lithium-ion battery
CN105655505A (en) * 2016-03-10 2016-06-08 龙能科技（苏州）有限责任公司 Maintainable cylindrical lithium-ion battery
CN106532174A (en) * 2015-09-14 2017-03-22 现代自动车株式会社 Battery device
CN106654359A (en) * 2016-12-28 2017-05-10 上海航天电源技术有限责任公司 Lithium ion battery capable of non-destructively detecting electrode interface
CN107565078A (en) * 2017-09-01 2018-01-09 王武生 A kind of method for preventing lithium ion battery combustion explosion
CN109037760A (en) * 2018-06-22 2018-12-18 王振波 A kind of maintainable lithium-ion battery and its maintaining method
CN109411690A (en) * 2017-08-18 2019-03-01 北京好风光储能技术有限公司 A kind of docking facilities for lithium slurry battery and lithium slurry battery maintenance generating apparatus again
US11233276B2 (en) 2017-04-07 2022-01-25 Beijing Hawaga Power Storage Technology Company Ltd. Lithium slurry battery system
CN114335783A (en) * 2021-12-29 2022-04-12 星恒电源股份有限公司 Method for realizing secondary service life of lithium ion battery and application

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2615877Y (en) * 2003-05-07 2004-05-12 锺馨稼 Chargeable & dischargeable repeatedly high-voltage lithium ion cells
CN101079501A (en) * 2006-05-26 2007-11-28 重庆戴徕密客电源有限公司 A secondary liquid lithium ion cell structure
JP2008186690A (en) * 2007-01-30 2008-08-14 Gs Yuasa Corporation:Kk Lead acid storage battery
CN101552356A (en) * 2009-05-14 2009-10-07 林道勇 Maintainable lithium ion battery and maintenance method thereof
CN101552358A (en) * 2009-05-14 2009-10-07 林道勇 Production method and encapsulating shell of lithium ion battery

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010105565A1 (en) * 2009-03-17 2010-09-23 山东润峰集团新能源科技有限公司 Method for manufacturing lithium ion battery and package bag of lithium ion battery
WO2010130218A1 (en) * 2009-05-14 2010-11-18 山东润峰集团新能源科技有限公司 Maintainable lithium-ion battery and maintenance method thereof
WO2010130220A1 (en) * 2009-05-14 2010-11-18 山东润峰集团新能源科技有限公司 Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery
CN102055010A (en) * 2009-11-06 2011-05-11 夏普株式会社 Non-aqueous electrolyte secondary battery with filling function, and non-aqueous electrolyte secondary battery and non-aqueous electrolyte filling device used therefor
CN102055010B (en) * 2009-11-06 2014-04-16 夏普株式会社 Non-aqueous electrolyte secondary battery with filling function, and non-aqueous electrolyte secondary battery and non-aqueous electrolyte filling device used therefor
US8752573B2 (en) 2009-11-06 2014-06-17 Sharp Kabushiki Kaisha Non-aqueous electrolyte secondary battery with filling function, and non-aqueous electrolyte secondary battery and non-aqueous electrolyte filling device used therefor
CN102163743A (en) * 2011-03-15 2011-08-24 余建岳 Vacuum explosion-proof lithium-ion battery
CN104600369A (en) * 2015-01-12 2015-05-06 山东神工海特电子科技有限公司 Liquid injecting, sealing and forming method of soft packaging lithium-ion battery
CN106532174A (en) * 2015-09-14 2017-03-22 现代自动车株式会社 Battery device
CN105655505A (en) * 2016-03-10 2016-06-08 龙能科技（苏州）有限责任公司 Maintainable cylindrical lithium-ion battery
CN106654359A (en) * 2016-12-28 2017-05-10 上海航天电源技术有限责任公司 Lithium ion battery capable of non-destructively detecting electrode interface
CN106654359B (en) * 2016-12-28 2019-03-29 上海航天电源技术有限责任公司 A kind of lithium ion battery of energy lossless detection electrode interface
US11233276B2 (en) 2017-04-07 2022-01-25 Beijing Hawaga Power Storage Technology Company Ltd. Lithium slurry battery system
CN109411690A (en) * 2017-08-18 2019-03-01 北京好风光储能技术有限公司 A kind of docking facilities for lithium slurry battery and lithium slurry battery maintenance generating apparatus again
CN109411690B (en) * 2017-08-18 2020-08-28 北京好风光储能技术有限公司 Butting device for lithium slurry battery and lithium slurry battery maintenance regeneration equipment
CN107565078A (en) * 2017-09-01 2018-01-09 王武生 A kind of method for preventing lithium ion battery combustion explosion
CN109037760A (en) * 2018-06-22 2018-12-18 王振波 A kind of maintainable lithium-ion battery and its maintaining method
CN114335783A (en) * 2021-12-29 2022-04-12 星恒电源股份有限公司 Method for realizing secondary service life of lithium ion battery and application
CN114335783B (en) * 2021-12-29 2024-03-29 星恒电源股份有限公司 Method for realizing secondary service life of lithium ion battery and application

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Open date: 20091007