JP7262605B2 - 内部短絡誘導のための電気化学素子及びそれを用いた安全性評価方法 - Google Patents
内部短絡誘導のための電気化学素子及びそれを用いた安全性評価方法 Download PDFInfo
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
- H01M50/48—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by the material
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- H—ELECTRICITY
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- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Description
正極、分離膜および負極が順次に積層された構造を含む電気化学素子であって、上記分離膜が正極と負極を連通する一つ以上の貫通ホールが形成された構造であり、
電気化学素子は、上記正極と分離膜との間、および上記負極と分離膜との間のうちのいずれか一つ以上の界面に、上記貫通ホールと重畳されない位置に形成されたスペーサーを含み、且つ、上記スペーサーが設けられた界面に、磁性物質を含有する貫通ホールカバー材を含むことができる。
正極、分離膜および負極が順次に積層された構造を含む電気化学素子であって、かつ上記分離膜は正極と負極とを連通する一つ以上の貫通ホールが形成された構造であり、
上記正極と分離膜との間、および上記負極と分離膜との間のいずれか一つ以上の界面には、上記貫通ホールと重畳しない位置に形成されたスペーサーを含み、
上記スペーサーが設けられた界面には磁性物質を含有する貫通ホールカバー材が含まれ得る。
11:磁性物質
12:絶縁膜
13:絶縁膜
100:電池セル
110:正極
120:負極
130:分離膜
131:貫通ホール
140:スペーサー
141:スペーサーの内部空間
150:電池ケース
200:電池セル
210:正極
220:負極
230:分離膜
231:貫通ホール
240:スペーサー
241:スペーサーの内部空間
250:電池ケース
Claims (9)
- 正極、分離膜および負極が順次に積層された構造を含む電気化学素子であって、前記分離膜が、正極と負極とを連通する一つ以上の貫通ホールが形成された構造であり、
前記正極と前記分離膜との間、および前記負極と前記分離膜との間のうちのいずれか一つ以上の界面に、前記貫通ホールと重畳されない位置に形成されたスペーサーを含み、かつ、前記スペーサーが設けられた側の前記界面に、磁性物質を含有する貫通ホールカバー材を含み、
前記貫通ホールカバー材の水平断面積は、前記分離膜に形成された前記貫通ホールの面積よりも大きく、
前記貫通ホールカバー材は、前記電気化学素子の外部から印加される磁場によって位置が移動できるように構成された、電気化学素子。 - 前記貫通ホールカバー材は板状である、請求項1に記載の電気化学素子。
- 前記貫通ホールカバー材はFe、Ni、およびCoからなる群から選ばれた1種または複数の磁性物質を含む、請求項1又は2に記載の電気化学素子。
- 前記磁性物質は板状または環状である、請求項3に記載の電気化学素子。
- 前記磁性物質の外周面が絶縁性物質で囲まれている、請求項3又は4に記載の電気化学素子。
- 前記絶縁性物質は多孔性高分子膜である、請求項5に記載の電気化学素子。
- 前記スペーサーが設けられた側の前記正極又は前記負極及び前記分離膜と前記スペーサーとによって囲まれた内部空間の水平断面積は、前記貫通ホールカバー材の水平断面積よりも大きい、請求項1から6のいずれか一項に記載の電気化学素子。
- 正極、負極、および貫通ホールが形成された分離膜、並びに、前記正極と前記分離膜との間および前記負極と前記分離膜との間のうちの少なくとも一つ以上の界面に配置されるスペーサー、および前記貫通ホールを覆う貫通ホールカバー材を含む電気化学素子を製造するステップであって、前記貫通ホールカバー材の水平断面積は、前記分離膜に形成された前記貫通ホールの面積よりも大きく、前記貫通ホールカバー材は、磁性物質を含有し、前記スペーサーが設けられた側の前記界面に配置される、電気化学素子を製造するステップと、
前記電気化学素子と離隔された位置で、前記貫通ホールカバー材に磁場を印加するステップと、
前記磁場によって前記貫通ホールカバー材を移動して前記貫通ホールを露出させるステップと、を含む、電池の内部短絡に係る安全性評価方法。 - 前記貫通ホールカバー材を移動して前記貫通ホールを露出させるステップの後に、前記貫通ホールカバー材を移動して前記貫通ホールを再び覆うステップを追加でさらに含む、請求項8に記載の電池の内部短絡に係る安全性評価方法。
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KR1020190096020A KR20210017178A (ko) | 2019-08-07 | 2019-08-07 | 내부 단락 유도를 위한 전기화학소자 및 이를 이용한 안전성 평가방법 |
KR10-2019-0096020 | 2019-08-07 | ||
PCT/KR2020/009920 WO2021025358A1 (ko) | 2019-08-07 | 2020-07-28 | 내부 단락 유도를 위한 전기화학소자 및 이를 이용한 안전성 평가방법 |
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JP2022523954A JP2022523954A (ja) | 2022-04-27 |
JP7262605B2 true JP7262605B2 (ja) | 2023-04-21 |
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US (1) | US20220140401A1 (ja) |
EP (1) | EP3916883A4 (ja) |
JP (1) | JP7262605B2 (ja) |
KR (1) | KR20210017178A (ja) |
WO (1) | WO2021025358A1 (ja) |
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KR20210017576A (ko) * | 2019-08-09 | 2021-02-17 | 주식회사 엘지화학 | 단락유도부재를 포함하는 전기화학소자 및 이를 이용한 안전성 평가방법 |
KR20230063464A (ko) * | 2021-11-02 | 2023-05-09 | 주식회사 엘지에너지솔루션 | 단락 유도 평가용 이차전지, 이의 제조방법 및 이차전지의 안전성 평가 방법 |
KR20230077053A (ko) * | 2021-11-25 | 2023-06-01 | 주식회사 엘지에너지솔루션 | 단락 검사용 전지, 그 제조 방법 및 전지 안전성 분석 방법 |
KR20230082260A (ko) * | 2021-12-01 | 2023-06-08 | 주식회사 엘지에너지솔루션 | 배터리 내부 단락 유발 장치 및 방법 |
Citations (5)
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JP2009054300A (ja) | 2007-08-23 | 2009-03-12 | Panasonic Corp | 電池の内部短絡評価方法 |
US20130209841A1 (en) | 2010-10-27 | 2013-08-15 | Alliance For Sustainable Energy, Llc | Passive Safety Device and Internal Short Tested Method for Energy Storage Cells and Systems |
JP2017182976A (ja) | 2016-03-29 | 2017-10-05 | 三菱自動車工業株式会社 | 二次電池の短絡評価方法 |
CN208173742U (zh) | 2018-05-21 | 2018-11-30 | 深圳市比克动力电池有限公司 | 一种电池内短路测试装置 |
JP2021535568A (ja) | 2019-04-09 | 2021-12-16 | エルジー・ケム・リミテッド | 短絡誘導部材を含む電池セル及びそれを用いた安全性評価方法 |
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JP2008192496A (ja) * | 2007-02-06 | 2008-08-21 | Matsushita Electric Ind Co Ltd | 電池の内部短絡評価方法並びに電池及び電池パック及びそれらの製造法 |
JP5209896B2 (ja) * | 2007-04-24 | 2013-06-12 | パナソニック株式会社 | 電池の内部短絡安全性評価方法 |
JP6167353B2 (ja) * | 2012-03-30 | 2017-07-26 | エリーパワー株式会社 | 試験用電池ケースおよび試験用電池 |
KR101546807B1 (ko) * | 2012-11-23 | 2015-08-24 | 주식회사 엘지화학 | 단락 유도부재를 포함하는 전지팩 |
CN204614848U (zh) * | 2015-05-11 | 2015-09-02 | 宁德时代新能源科技有限公司 | 锂离子电池外短路连接装置 |
KR102217449B1 (ko) * | 2017-11-01 | 2021-02-22 | 주식회사 엘지화학 | 이차전지 |
KR102017286B1 (ko) | 2018-02-08 | 2019-10-14 | (주)포인트엔지니어링 | Led 모듈 |
-
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- 2019-08-07 KR KR1020190096020A patent/KR20210017178A/ko unknown
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- 2020-07-28 US US17/433,788 patent/US20220140401A1/en active Pending
- 2020-07-28 JP JP2021552178A patent/JP7262605B2/ja active Active
- 2020-07-28 EP EP20849878.2A patent/EP3916883A4/en active Pending
- 2020-07-28 WO PCT/KR2020/009920 patent/WO2021025358A1/ko unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009054300A (ja) | 2007-08-23 | 2009-03-12 | Panasonic Corp | 電池の内部短絡評価方法 |
US20130209841A1 (en) | 2010-10-27 | 2013-08-15 | Alliance For Sustainable Energy, Llc | Passive Safety Device and Internal Short Tested Method for Energy Storage Cells and Systems |
JP2017182976A (ja) | 2016-03-29 | 2017-10-05 | 三菱自動車工業株式会社 | 二次電池の短絡評価方法 |
CN208173742U (zh) | 2018-05-21 | 2018-11-30 | 深圳市比克动力电池有限公司 | 一种电池内短路测试装置 |
JP2021535568A (ja) | 2019-04-09 | 2021-12-16 | エルジー・ケム・リミテッド | 短絡誘導部材を含む電池セル及びそれを用いた安全性評価方法 |
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EP3916883A4 (en) | 2022-04-20 |
US20220140401A1 (en) | 2022-05-05 |
WO2021025358A1 (ko) | 2021-02-11 |
CN113711409A (zh) | 2021-11-26 |
EP3916883A1 (en) | 2021-12-01 |
KR20210017178A (ko) | 2021-02-17 |
JP2022523954A (ja) | 2022-04-27 |
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