KR20070094147A - 열팽창 물질을 사용하여 안전성이 향상된 전기 화학 소자및 이의 제조방법 - Google Patents
열팽창 물질을 사용하여 안전성이 향상된 전기 화학 소자및 이의 제조방법 Download PDFInfo
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- KR20070094147A KR20070094147A KR1020060024419A KR20060024419A KR20070094147A KR 20070094147 A KR20070094147 A KR 20070094147A KR 1020060024419 A KR1020060024419 A KR 1020060024419A KR 20060024419 A KR20060024419 A KR 20060024419A KR 20070094147 A KR20070094147 A KR 20070094147A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- 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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Abstract
Description
Claims (13)
- 소자 내부의 빈 공간상에 일정 온도 이상에서 열에 의해 부피 팽창하는 물질이 구비된 것이 특징인 전기 화학 소자.
- 제 1 항에 있어서, 상기 일정 온도는 60℃인 전기 화학 소자.
- 제 1항에 있어서, 상기 일정 온도 이상에서 열에 의해 부피 팽창하는 물질의 함량은 소자 내부의 빈공간 대비 10 내지 100% 범위인 전기 화학 소자.
- 제 1항에 있어서, 상기 일정 온도 이상에서 열에 의해 부피 팽창하는 물질은 폴리에틸렌, 폴리프로필렌, 폴리에틸렌옥시드, 폴리프로필렌 옥시드, 폴리비닐리덴 플루오라이드, 폴리테트라플루오로에틸렌, 폴리비닐플루오라이드, 폴리아크릴로니트릴, 폴리염화비닐, 폴리염화비닐리덴, 폴리메틸 메타크릴레이트, 폴리메틸 아크릴레이트, 폴리비닐알코올, 폴리메타크릴로니트릴, 폴리비닐 아세테이트, 폴리비닐 피롤리돈, 폴리카보네이트, 폴리에틸렌 테레프탈레이트, 폴리카프로락탐, 폴리우레탄, 폴리에틸렌이민, 폴리부타디엔, 폴리스티렌 및 폴리이소프렌으로 구성된 군으로부터 선택된 1종 이상인 전기 화학 소자.
- 제 1항에 있어서, 상기 소자의 빈 공간은 권심(mandrel) 내부, 소자 케이스 (case)의 내부 상단 및 하단으로 구성된 군으로부터 선택된 전기 화학 소자.
- 제 1항에 있어서, 상기 소자는 압력 감응 소자를 포함하는 전기 화학 소자.
- 제 6항에 있어서, 상기 소자는 (i) 압력 감응 소자; (ii) 상기 압력 감응 소자에서 전달된 전류를 전달하는 도선; 및 (iii) 상기 도선을 통해 전달되는 전류에 응답하여 소자의 충전을 중지시키거나 또는 충전 상태를 방전 상태로 전환시키는 안전 수단이 구비된 것이 특징인 전기 화학 소자.
- 제 1항에 있어서, 상기 소자는 소자 내부 온도가 열팽창 물질의 부피 증가가 초래되는 온도 범위로 상승시, 소자 내 빈 공간 상에 삽입 또는 코팅된 열팽창 물질의 부피 증가, 소자 내 빈 공간 감소 및 내부 압력 증가를 통해 압력 감응 소자의 작동이 도모되는 것이 특징인 전기 화학 소자.
- 제 1항에 있어서, 상기 전기 화학 소자는 리튬 이차 전지인 전기 화학 소자.
- 권심(mandrel)을 사용하는 전기 화학 소자의 제조방법에 있어서, 상기 권심 내부에 일정 온도 이상에서 열에 의해 부피 팽창하는 물질을 코팅 또는 삽입하는 단계를 포함하는 전기 화학 소자의 제조방법.
- 제 10항에 있어서, 상기 제조방법은(a) 권심(mandrel) 내부에 일정 온도 이상에서 열에 의해 부피 팽창하는 물질을 코팅 또는 삽입하는 단계;(b) 상기 권심에 양극, 분리막, 음극, 분리막을 권취한 후 소자 케이스(case)에 투입하는 단계; 및(c) 상기 소자 케이스에 전해질을 투입한 후 봉합하는 단계를 포함하는 전기 화학 소자의 제조방법.
- 제 11항에 있어서, 상기 단계 (b)와 (c) 사이에, 소자 케이스의 내부 상단, 하단 또는 상단 및 하단에 일정 온도 이상에서 열에 의해 부피 팽창하는 물질을 코팅 또는 삽입하는 단계를 추가로 포함하는 제조방법.
- (a) 소자 케이스의 내부 상단 및 하단에 일정 온도 이상에서 열에 의해 부피팽창하는 물질을 코팅 또는 삽입하는 단계;(b) 상기 소자 케이스에 양극, 음극 및 이들 사이에 개재된 분리막을 이용하여 제조된 전지부 어셈블리(assembly)를 투입하는 단계; 및(c) 상기 소자 케이스에 전해질을 투입한 후 봉합하는 단계를 포함하는 전기 화학 소자의 제조방법.
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Cited By (3)
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US8974944B2 (en) | 2010-07-16 | 2015-03-10 | Samsung Sdi Co., Ltd. | Electrode assembly and rechargeable battery using the same |
WO2019022423A1 (ko) * | 2017-07-28 | 2019-01-31 | 주식회사 엘지화학 | 이차전지용 양극 및 이를 포함하는 리튬 이차전지 |
KR20190066411A (ko) * | 2017-12-05 | 2019-06-13 | 삼성에스디아이 주식회사 | 이차 전지 |
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KR101054745B1 (ko) * | 2009-04-21 | 2011-08-05 | 주식회사 엘지화학 | 안전성 향상을 위한 전기화학 소자 첨가제 |
CN107112447A (zh) * | 2014-12-26 | 2017-08-29 | 株式会社Lg化学 | 电化学装置 |
KR20240074384A (ko) * | 2022-11-21 | 2024-05-28 | 주식회사 엘지에너지솔루션 | 열 전파 방지 엔드 플레이트 |
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JP3261688B2 (ja) * | 1994-08-23 | 2002-03-04 | キヤノン株式会社 | 二次電池及びその製造方法 |
US5888666A (en) | 1996-03-05 | 1999-03-30 | Canon Kabushiki Kaisha | Secondary battery |
KR20010020338A (ko) * | 1999-10-27 | 2001-03-15 | 다니구찌 이찌로오, 기타오카 다카시 | 전극, 이 전극의 제조방법, 이 전극을 사용한 전지 |
KR20050063180A (ko) * | 2003-12-22 | 2005-06-28 | 한밭대학교 | 전지의 과충전 방지장치 |
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US8974944B2 (en) | 2010-07-16 | 2015-03-10 | Samsung Sdi Co., Ltd. | Electrode assembly and rechargeable battery using the same |
WO2019022423A1 (ko) * | 2017-07-28 | 2019-01-31 | 주식회사 엘지화학 | 이차전지용 양극 및 이를 포함하는 리튬 이차전지 |
US11728480B2 (en) | 2017-07-28 | 2023-08-15 | Lg Energy Solution, Ltd. | Positive electrode for secondary battery and lithium secondary battery including the same |
KR20190066411A (ko) * | 2017-12-05 | 2019-06-13 | 삼성에스디아이 주식회사 | 이차 전지 |
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