JP2012178252A5 - - Google Patents
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- JP2012178252A5 JP2012178252A5 JP2011039799A JP2011039799A JP2012178252A5 JP 2012178252 A5 JP2012178252 A5 JP 2012178252A5 JP 2011039799 A JP2011039799 A JP 2011039799A JP 2011039799 A JP2011039799 A JP 2011039799A JP 2012178252 A5 JP2012178252 A5 JP 2012178252A5
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- positive electrode
- secondary battery
- lithium ion
- ion secondary
- insulating layer
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Claims (8)
前記正極合剤層は、前記集電体の一部の領域に形成されており、かつ、前記集電体の前記正極合剤層が形成されていない領域との境界部に沿って、前記正極合剤層のプレスにより潰された圧潰部を被覆する絶縁層が形成されており、
前記正極の前記絶縁層で被覆された部分の厚さは、前記正極の前記絶縁層が形成されていない部分の厚さ以下であることを特徴とするリチウムイオン二次電池。 In a lithium ion secondary battery comprising an electrode group consisting of a positive electrode having a current collector and a positive electrode mixture layer containing a positive electrode active material, a negative electrode, and a separator disposed between the positive electrode and the negative electrode,
The positive electrode mixture layer is formed in a partial region of the current collector, and the positive electrode mixture layer extends along a boundary portion between the current collector and the region where the positive electrode mixture layer is not formed. An insulating layer covering the crushed portion crushed by pressing the mixture layer is formed ,
The lithium ion secondary battery , wherein a thickness of a portion of the positive electrode covered with the insulating layer is equal to or less than a thickness of a portion of the positive electrode where the insulating layer is not formed .
前記正極合剤層は、前記集電体の一部の領域に形成され、帯状の絶縁層によって、前記集電体の前記正極合剤層が形成されていない領域との境界部および前記境界部の近傍が、前記境界部に沿って被覆されており、
前記正極の前記絶縁層で被覆された部分の厚さは、前記正極の前記絶縁層が形成されていない部分の厚さ以下であることを特徴とするリチウムイオン二次電池。 In a lithium ion secondary battery comprising an electrode group consisting of a positive electrode having a current collector and a positive electrode mixture layer containing a positive electrode active material, a negative electrode, and a separator disposed between the positive electrode and the negative electrode,
The positive electrode mixture layer is formed in a partial region of the current collector, and a boundary portion between the current collector and the region where the positive electrode mixture layer is not formed by the band-shaped insulating layer, and the boundary portion Is covered along the boundary ,
The lithium ion secondary battery , wherein a thickness of a portion of the positive electrode covered with the insulating layer is equal to or less than a thickness of a portion of the positive electrode where the insulating layer is not formed .
帯状の前記絶縁層の幅は、１ｍｍ以上であるリチウムイオン二次電池。 The lithium ion secondary battery according to claim 2,
The width | variety of the said strip | belt-shaped insulating layer is a lithium ion secondary battery which is 1 mm or more.
前記絶縁層の厚さは、前記正極合剤層の厚さの１／１０以下であるリチウムイオン二次電池。 The lithium ion secondary battery according to claim 1 or 2,
The thickness of the said insulating layer is a lithium ion secondary battery which is 1/10 or less of the thickness of the said positive mix layer.
前記正極合剤層は、前記集電体の一部の領域に形成されており、かつ、前記集電体の前記正極合剤層が形成されていない領域との境界部に沿って、前記正極合剤層のプレスにより潰された圧潰部を被覆する絶縁層が形成されており、
前記正極の前記絶縁層で被覆された部分の厚さは、前記正極の前記絶縁層が形成されていない部分の厚さ以下であることを特徴とするリチウムイオン二次電池の正極。 In a positive electrode of a lithium ion secondary battery having a current collector and a positive electrode mixture layer containing a positive electrode active material,
The positive electrode mixture layer is formed in a partial region of the current collector, and the positive electrode mixture layer extends along a boundary portion between the current collector and the region where the positive electrode mixture layer is not formed. An insulating layer covering the crushed portion crushed by pressing the mixture layer is formed ,
The positive electrode of a lithium ion secondary battery , wherein a thickness of a portion of the positive electrode covered with the insulating layer is equal to or less than a thickness of a portion of the positive electrode where the insulating layer is not formed .
前記正極合剤層は、前記集電体の一部の領域に形成され、帯状の絶縁層によって、前記集電体の前記正極合剤層が形成されていない領域との境界部および前記境界部の近傍が、前記境界部に沿って被覆されており、
前記正極の前記絶縁層で被覆された部分の厚さは、前記正極の前記絶縁層が形成されていない部分の厚さ以下であることを特徴とするリチウムイオン二次電池の正極。 In a positive electrode of a lithium ion secondary battery having a current collector and a positive electrode mixture layer containing a positive electrode active material,
The positive electrode mixture layer is formed in a partial region of the current collector, and a boundary portion between the current collector and the region where the positive electrode mixture layer is not formed by the band-shaped insulating layer, and the boundary portion Is covered along the boundary ,
The positive electrode of a lithium ion secondary battery , wherein a thickness of a portion of the positive electrode covered with the insulating layer is equal to or less than a thickness of a portion of the positive electrode where the insulating layer is not formed .
帯状の前記絶縁層の幅は、１ｍｍ以上であるリチウムイオン二次電池の正極。 The positive electrode of the lithium ion secondary battery according to claim 6 ,
The positive electrode of the lithium ion secondary battery, wherein the band-shaped insulating layer has a width of 1 mm or more.
前記絶縁層の厚さは、前記正極合剤層の厚さの１／１０以下であるリチウムイオン二次電池の正極。 In the positive electrode of the lithium ion secondary battery according to claim 5 or 6 ,
The thickness of the insulating layer is a positive electrode of a lithium ion secondary battery in which the thickness of the positive electrode mixture layer is 1/10 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011039799A JP5590333B2 (en) | 2011-02-25 | 2011-02-25 | Lithium ion secondary battery and its positive electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011039799A JP5590333B2 (en) | 2011-02-25 | 2011-02-25 | Lithium ion secondary battery and its positive electrode |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012178252A JP2012178252A (en) | 2012-09-13 |
| JP2012178252A5 true JP2012178252A5 (en) | 2013-09-19 |
| JP5590333B2 JP5590333B2 (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011039799A Active JP5590333B2 (en) | 2011-02-25 | 2011-02-25 | Lithium ion secondary battery and its positive electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5590333B2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5772397B2 (en) * | 2011-08-30 | 2015-09-02 | 株式会社Ｇｓユアサ | Battery electrode manufacturing method and battery electrode |
| JP5776446B2 (en) * | 2011-08-30 | 2015-09-09 | 株式会社Ｇｓユアサ | Battery electrode manufacturing method and battery electrode |
| CN105190952A (en) * | 2013-04-01 | 2015-12-23 | 日立汽车***株式会社 | Lithium-ion secondary cell and method for manufacturing same |
| EP3065205B1 (en) * | 2013-10-30 | 2018-12-05 | Nissan Motor Co., Ltd | Electrode and cell having electrode |
| JP6252841B2 (en) * | 2013-11-25 | 2017-12-27 | 株式会社Ｇｓユアサ | Electricity storage element |
| KR101792572B1 (en) * | 2014-02-20 | 2017-11-01 | 주식회사 엘지화학 | Battery Cell Having Electrode Coated with Insulating Material |
| JP6336821B2 (en) * | 2014-05-23 | 2018-06-06 | 日立オートモティブシステムズ株式会社 | Secondary battery |
| JP2016039090A (en) * | 2014-08-08 | 2016-03-22 | 株式会社Ｇｓユアサ | Power storage element, and power storage device |
| JP6363449B2 (en) * | 2014-09-26 | 2018-07-25 | トヨタ自動車株式会社 | Method for producing electrode for lithium ion secondary battery |
| JP6806302B2 (en) * | 2016-02-05 | 2021-01-06 | 国立大学法人大阪大学 | Positive electrode catalyst for fuel cells |
| WO2018079817A1 (en) * | 2016-10-31 | 2018-05-03 | Ｎｅｃエナジーデバイス株式会社 | Electrode for electrochemical device, electrochemical device, and method for producing same |
| JPWO2020162598A1 (en) * | 2019-02-07 | 2021-09-30 | 積水化学工業株式会社 | Electrodes for lithium-ion secondary batteries and lithium-ion secondary batteries |
| JP7177990B2 (en) * | 2019-06-06 | 2022-11-25 | トヨタ自動車株式会社 | lithium ion secondary battery |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3606554B2 (en) * | 2000-01-27 | 2005-01-05 | Ｎｅｃトーキン栃木株式会社 | Manufacturing method of sealed battery |
| JP2002367607A (en) * | 2001-06-05 | 2002-12-20 | Hitachi Maxell Ltd | Non-sintered electrode for alkali storage battery, and alkali storage battery using the same |
| US7097673B2 (en) * | 2001-06-07 | 2006-08-29 | 3M Innovative Properties Company | Coating edge control |
| JP4201619B2 (en) * | 2003-02-26 | 2008-12-24 | 三洋電機株式会社 | Nonaqueous electrolyte secondary battery and method for producing electrode used therefor |
| KR100601550B1 (en) * | 2004-07-28 | 2006-07-19 | 삼성에스디아이 주식회사 | Lithium Ion Secondary battery |
| JP2006147392A (en) * | 2004-11-22 | 2006-06-08 | Matsushita Electric Ind Co Ltd | Battery |
| JP5378718B2 (en) * | 2007-07-09 | 2013-12-25 | パナソニック株式会社 | Electrode plate for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using the same |
| JP4990714B2 (en) * | 2007-08-01 | 2012-08-01 | 日立ビークルエナジー株式会社 | Lithium ion secondary battery |
| JP2011150819A (en) * | 2010-01-20 | 2011-08-04 | Hitachi Vehicle Energy Ltd | Lithium secondary battery and method for manufacturing electrode thereof |
| JP5417241B2 (en) * | 2010-04-01 | 2014-02-12 | 日立ビークルエナジー株式会社 | Rectangular lithium ion secondary battery and method for manufacturing prismatic lithium ion secondary battery |
| JP5858325B2 (en) * | 2010-09-03 | 2016-02-10 | 株式会社Ｇｓユアサ | battery |
| JP5818150B2 (en) * | 2010-11-05 | 2015-11-18 | 株式会社Ｇｓユアサ | Electrode for power storage element, power storage element using the same, and method for manufacturing electrode for power storage element |
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- 2011-02-25 JP JP2011039799A patent/JP5590333B2/en active Active
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