JP2023521312A - ガス排出のためのガス排出部を含む二次電池及び二次電池の製造方法 - Google Patents
ガス排出のためのガス排出部を含む二次電池及び二次電池の製造方法 Download PDFInfo
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/141—Primary casings; Jackets or wrappings for protecting against damage caused by external factors for protecting against humidity
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
-
- 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
- H01M50/394—Gas-pervious parts or elements
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
本発明の第1実施例による形状に電極及び分離膜のないダミーセルを形成した。ここで、ガス排出部には100μm厚さのポリプロピレンをコーティングした。
ガス排出部に200μm厚さのポリプロピレンをコーティングしたことを除き、実験例1と同様であるので、他の説明は省略する。
ガス排出部に何もコーティングしないことを除き、実験例1と同様であるので、他の説明は省略する。
ダミーセルの水分浸透の測定は、高温多湿な環境で水分浸透速度を加速方式で測定し、加速保存の後、密封容器内の溶液を一部抽出し、滴定装置(titrator)を用いて滴定して測定する。前記ダミーセルの水分浸透力を実験するために、高温多湿(60℃、RH90%)の条件に設定したチャンバーにサンプルを置き、1週間にわたって水分浸透変化を測定した。ここで、二次電池の内部に浸透した水分の含量は電解液の反応によって形成されたHFの濃度増加によって測定した。本発明において、水分浸透率は水分浸透加速の環境で16週間水分浸透した場合、二次電池内のHF0.1gは10年間水分(H2O)500ppmの浸透に相当する。
本発明によるガス排出部に100μm厚さのポリプロピレン(第2実験例1、Ex.1)を備えたパウチ型二次電池の内部の圧力変化を24時間測定した。
ガス排出部を備えていないパウチ型二次電池を対象としたことを除き、第2実験例1と同様であるので、他の説明は省略する。
11、110 電極リード
20、200 ケース
21、210 収納部
22、220 密封部
221 外部層
222 金属層
223 内部層
230 ガス排出部
231 ガス貫通部
232 コーティング部
Claims (13)
- 電極組立体を収納する収納部、前記収納部の周辺を密封して形成された密封部、及び前記密封部に配置され、一端は前記収納部に接触し、他端は外部に接触してガスのみを選択的に排出するガス排出部を備える、パウチ型ケース。
- 前記ガス排出部は、ガス透過度が水分透過度より大きいガス排出物質からなる、請求項1に記載のパウチ型ケース。
- 前記ガス排出物質は1年間で50ppm以下の水分浸透率を有する、請求項2に記載のパウチ型ケース。
- 前記ガス排出物質は、ポリプロピレン(PP)、ポリテトラフルオロエチレン(PTFE)、ポリエチレン(PE)、ポリエチレンテレフタレート(PET)またはこれらの混合物である、請求項2または3に記載のパウチ型ケース。
- 前記ガス排出部の厚さは100μm以上600μm以下である、請求項1から4のいずれか一項に記載のパウチ型ケース。
- 前記ガス排出部は前記電極組立体から外部に突出している電極リードを取り囲む、請求項1から5のいずれか一項に記載のパウチ型ケース。
- パウチ型ケースはラミネートシートを含んでなり、
前記ガス排出部と前記ラミネートシートとの接触部がポリプロピレンでコーティングされている、請求項1から6のいずれか一項に記載のパウチ型ケース。 - 請求項1から7のいずれか一項に記載のパウチ型ケースと、
電極組立体と、を含む、二次電池。 - (S1)電極組立体の電極リード表面の少なくとも一部に水分透過度よりガス透過度が大きいガス排出物質を塗布する段階と、
(S2)前記電極組立体をガス排出部を備えたパウチ型ケースの内部の収納部に収納した後、密封する段階と、を含む、二次電池の製造方法。 - 前記ガス排出物質は、ポリプロピレン(PP)、ポリテトラフルオロエチレン(PTFE)、ポリエチレン(PE)、ポリエチレンテレフタレート(PET)またはこれらの混合物である、請求項9に記載の二次電池の製造方法。
- 前記(S2)の段階で、前記ガス排出物質と前記パウチ型ケースとは少なくとも1回~10回の熱融着によって結合される、請求項9または10に記載の二次電池の製造方法。
- 前記ガス排出部は表面改質過程を経る、請求項9から11のいずれか一項に記載の二次電池の製造方法。
- 前記ガス排出部の厚さは100μm以上600μm以下である、請求項9から12のいずれか一項に記載の二次電池の製造方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20200085641 | 2020-07-10 | ||
KR10-2020-0085641 | 2020-07-10 | ||
KR10-2021-0078634 | 2021-06-17 | ||
KR1020210078634A KR20220007511A (ko) | 2020-07-10 | 2021-06-17 | 가스 배출을 위한 가스 배출부를 포함하는 이차전지 및 이차전지 제조방법 |
PCT/KR2021/008647 WO2022010256A1 (ko) | 2020-07-10 | 2021-07-07 | 가스 배출을 위한 가스 배출부를 포함하는 이차전지 및 이차전지 제조방법 |
Publications (1)
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JP2023521312A true JP2023521312A (ja) | 2023-05-24 |
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JP2022560124A Pending JP2023521312A (ja) | 2020-07-10 | 2021-07-07 | ガス排出のためのガス排出部を含む二次電池及び二次電池の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230318133A1 (ja) |
EP (1) | EP4131614A4 (ja) |
JP (1) | JP2023521312A (ja) |
CN (1) | CN115210947A (ja) |
WO (1) | WO2022010256A1 (ja) |
Family Cites Families (18)
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US3853629A (en) * | 1973-12-03 | 1974-12-10 | Esb Inc | Battery having laminated wrapper member which includes gas venting passageway |
JP4622019B2 (ja) * | 1999-01-20 | 2011-02-02 | パナソニック株式会社 | 扁平電池 |
JP5157337B2 (ja) * | 2007-03-30 | 2013-03-06 | 大日本印刷株式会社 | 電池タブ及びそれを用いたリチウムイオン電池 |
JP2011108433A (ja) * | 2009-11-16 | 2011-06-02 | Sumitomo Heavy Ind Ltd | 蓄電装置 |
KR101273472B1 (ko) * | 2010-11-10 | 2013-06-14 | 주식회사 이아이지 | 파우치형 이차 전지의 제조 방법 및 이에 의한 파우치형 이차 전지 |
JP2012190639A (ja) * | 2011-03-10 | 2012-10-04 | Sony Corp | 非水電解質電池、電池パック及び電子機器 |
KR101915325B1 (ko) * | 2012-09-06 | 2018-11-05 | 에스케이이노베이션 주식회사 | 이차전지 |
KR101508416B1 (ko) * | 2012-09-27 | 2015-04-07 | 주식회사 엘지화학 | 파우치형 이차전지 |
JP2014212034A (ja) | 2013-04-18 | 2014-11-13 | 株式会社カネカ | 非水電解質二次電池 |
JP2015195191A (ja) * | 2014-03-26 | 2015-11-05 | 東レ株式会社 | ラミネート電池およびラミネート電池用外装材 |
KR102384912B1 (ko) * | 2015-06-12 | 2022-04-11 | 에스케이온 주식회사 | 이차전지 및 이를 포함하는 배터리 모듈 |
KR20170082239A (ko) | 2016-01-06 | 2017-07-14 | 주식회사 엘지화학 | 확장된 전극 리드를 포함하는 전지셀 |
KR102134647B1 (ko) * | 2016-03-16 | 2020-07-16 | 주식회사 엘지화학 | 2차 전지 및 2차 전지 제조방법 |
JP6801722B2 (ja) * | 2016-12-16 | 2020-12-16 | 株式会社村田製作所 | 二次電池、電池パック、電動車両、電力貯蔵システム、電動工具および電子機器 |
CN207009526U (zh) * | 2017-08-10 | 2018-02-13 | 东莞市宝博电子有限公司 | 一种可以排出内部气体的锂离子电池 |
CN209487555U (zh) * | 2018-12-14 | 2019-10-11 | 宁德时代新能源科技股份有限公司 | 壳体、电池模组及单体电池 |
KR20190008964A (ko) | 2019-01-07 | 2019-01-25 | 주식회사 대창 | 제빙기 및 제빙기를 포함하는 냉장고 |
KR20210078634A (ko) | 2019-12-18 | 2021-06-29 | 덕산하이메탈(주) | 메탈 나노와이어 및 그 제조방법 |
-
2021
- 2021-07-07 WO PCT/KR2021/008647 patent/WO2022010256A1/ko unknown
- 2021-07-07 JP JP2022560124A patent/JP2023521312A/ja active Pending
- 2021-07-07 CN CN202180017921.7A patent/CN115210947A/zh active Pending
- 2021-07-07 US US18/011,735 patent/US20230318133A1/en active Pending
- 2021-07-07 EP EP21837012.0A patent/EP4131614A4/en active Pending
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US20230318133A1 (en) | 2023-10-05 |
EP4131614A4 (en) | 2023-10-04 |
EP4131614A1 (en) | 2023-02-08 |
WO2022010256A1 (ko) | 2022-01-13 |
CN115210947A (zh) | 2022-10-18 |
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