JP7318855B2 - 低電流検査を活用したウェッティング程度の判別方法 - Google Patents
低電流検査を活用したウェッティング程度の判別方法 Download PDFInfo
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- JP7318855B2 JP7318855B2 JP2021572453A JP2021572453A JP7318855B2 JP 7318855 B2 JP7318855 B2 JP 7318855B2 JP 2021572453 A JP2021572453 A JP 2021572453A JP 2021572453 A JP2021572453 A JP 2021572453A JP 7318855 B2 JP7318855 B2 JP 7318855B2
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/044—Activating, forming or electrochemical attack of the supporting material
- H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
- H01M4/0447—Forming after manufacture of the electrode, e.g. first charge, cycling of complete cells or cells stacks
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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
- H01M10/42—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
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- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Secondary Cells (AREA)
Description
Claims (8)
- a)電極組立体と電解液をケースに収納して組み立てた後、プレエージングを行った基準バッテリーセルに対して、0.01C-rate以下の低電流で充電しながら記録した充電プロファイルを基準充電プロファイルとして得る段階と、
b)電極組立体と電解液をケースに収納して組み立てた後、プレエージングを行った他のバッテリーセルに対し、前記基準バッテリーセルと同一に0.01C-rate以下の低電流で充電しながら測定充電プロファイルを記録する段階と、
c)前記基準充電プロファイルと前記測定充電プロファイルとを比較分析して、前記基準バッテリーセルに対する前記他のバッテリーセルのウェッティング程度を判別する段階と、を含み、
前記充電プロファイルが、充電時間の経過によるバッテリーセルの電圧変化グラフであり、
前記c)の比較分析は、カットオフ電圧までの到達時間または前記充電プロファイルの勾配差で判別する、ウェッティング程度の判別方法。 - 前記a)とb)の充電プロファイルを記録する段階において、充電は、カットオフ電圧に到達するまで定電流で充電する、請求項1に記載のウェッティング程度の判別方法。
- 前記カットオフ電圧が、2.0V以下である、請求項2に記載のウェッティング程度の判別方法。
- 前記0.01C-rate以下の低電流で充電しながら測定充電プロファイルを記録する段階は、前記他のバッテリーセルに対する最初の充電段階であるフォーメーション工程の一部をなす、請求項1から3のいずれか一項に記載のウェッティング程度の判別方法。
- 前記他のバッテリーセルは、前記基準バッテリーセルと同一に組み立てて同一にプレエージングを行い、前記b)とc)は、全品検査のために量産ラインの全てのバッテリーセルに対して行う、請求項1から4のいずれか一項に記載のウェッティング程度の判別方法。
- 前記基準バッテリーセルと他のバッテリーセルとを同じラインで組み立て、前記基準バッテリーセルと他のバッテリーセルとを同じ充放電装置で共に充電して前記充電プロファイルを記録する、請求項1から4のいずれか一項に記載のウェッティング程度の判別方法。
- 前記他のバッテリーセルは、前記基準バッテリーセルと同一に組み立て、他の条件でプレエージングを行うことで、プレエージング条件によるウェッティング程度の判別仕様を得る、請求項1から4のいずれか一項に記載のウェッティング程度の判別方法。
- 前記プレエージングは、2時間以上かつ48時間以下で行われる、請求項7に記載のウェッティング程度の判別方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2019-0079604 | 2019-07-02 | ||
KR1020190079604A KR20210003600A (ko) | 2019-07-02 | 2019-07-02 | 저전류 검사를 활용한 웨팅 정도 판별 방법 |
PCT/KR2020/008661 WO2021002701A1 (ko) | 2019-07-02 | 2020-07-02 | 저전류 검사를 활용한 웨팅 정도 판별 방법 |
Publications (2)
Publication Number | Publication Date |
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JP2022536302A JP2022536302A (ja) | 2022-08-15 |
JP7318855B2 true JP7318855B2 (ja) | 2023-08-01 |
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JP2021572453A Active JP7318855B2 (ja) | 2019-07-02 | 2020-07-02 | 低電流検査を活用したウェッティング程度の判別方法 |
Country Status (9)
Country | Link |
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US (1) | US20220359856A1 (ja) |
EP (1) | EP3993134B1 (ja) |
JP (1) | JP7318855B2 (ja) |
KR (1) | KR20210003600A (ja) |
CN (1) | CN114072952B (ja) |
ES (1) | ES2965818T3 (ja) |
HU (1) | HUE064166T2 (ja) |
PL (1) | PL3993134T3 (ja) |
WO (1) | WO2021002701A1 (ja) |
Citations (7)
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JP2004361253A (ja) | 2003-06-05 | 2004-12-24 | Toyo System Co Ltd | 二次電池検査方法および検査装置 |
KR100865401B1 (ko) | 2007-05-25 | 2008-10-24 | 삼성에스디아이 주식회사 | 비수계 전해질 전지의 전해액 함침도 측정 방법 및 그에적합한 장치 |
JP2010102928A (ja) | 2008-10-23 | 2010-05-06 | Toyota Motor Corp | 2次電池の品質判定方法およびその判定装置 |
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- 2019-07-02 KR KR1020190079604A patent/KR20210003600A/ko active IP Right Grant
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- 2020-07-02 HU HUE20835187A patent/HUE064166T2/hu unknown
- 2020-07-02 EP EP20835187.4A patent/EP3993134B1/en active Active
- 2020-07-02 PL PL20835187.4T patent/PL3993134T3/pl unknown
- 2020-07-02 CN CN202080048307.2A patent/CN114072952B/zh active Active
- 2020-07-02 ES ES20835187T patent/ES2965818T3/es active Active
- 2020-07-02 US US17/623,510 patent/US20220359856A1/en active Pending
- 2020-07-02 WO PCT/KR2020/008661 patent/WO2021002701A1/ko unknown
- 2020-07-02 JP JP2021572453A patent/JP7318855B2/ja active Active
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JP2004361253A (ja) | 2003-06-05 | 2004-12-24 | Toyo System Co Ltd | 二次電池検査方法および検査装置 |
KR100865401B1 (ko) | 2007-05-25 | 2008-10-24 | 삼성에스디아이 주식회사 | 비수계 전해질 전지의 전해액 함침도 측정 방법 및 그에적합한 장치 |
JP2010102928A (ja) | 2008-10-23 | 2010-05-06 | Toyota Motor Corp | 2次電池の品質判定方法およびその判定装置 |
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Publication number | Publication date |
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PL3993134T3 (pl) | 2024-02-26 |
US20220359856A1 (en) | 2022-11-10 |
CN114072952A (zh) | 2022-02-18 |
HUE064166T2 (hu) | 2024-02-28 |
EP3993134A4 (en) | 2023-05-24 |
KR20210003600A (ko) | 2021-01-12 |
WO2021002701A1 (ko) | 2021-01-07 |
EP3993134B1 (en) | 2023-11-08 |
ES2965818T3 (es) | 2024-04-17 |
JP2022536302A (ja) | 2022-08-15 |
CN114072952B (zh) | 2023-12-19 |
EP3993134A1 (en) | 2022-05-04 |
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