JP5963010B2 - 非水電解液二次電池 - Google Patents
非水電解液二次電池 Download PDFInfo
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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- H—ELECTRICITY
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- H01M2300/0025—Organic electrolyte
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
- 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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- 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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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Description
以下、CHBにより化学修飾された修飾導電材を用いて評価用セル(リチウムイオン二次電池)を構築し、電池の過充電試験および放電特性を評価した。以下、具体的な方法を示す。
サンプル1〜10では、正極活物質層全体の固形分を100質量%とした場合のCHBの含有量を異ならせて評価用セルを構築した。具体的には、サンプル1〜10では、正極活物質層全体に占めるCHBの含有量が0.1質量%〜8質量%の間で異なる。それ以外は同じ条件とした。また、サンプル11では、上記CHBを保持した導電材に代えて、CHBが保持されていない従来の導電材を用いた。また、非水電解液中にCHBを4質量%添加した。それ以外はサンプル1〜10と同じ条件とした。
上記得られた各サンプル1〜11の評価用セルについて、25℃の環境下において、1Cの定電流で電池電圧が4.1Vになるまで充電し、次いで、4.1Vの定電圧で充電電流が1/10Cとなるまで充電した。その後、1Cの定電流で3.0Vに到達するまで放電を行い、このときの定電流放電における放電容量を電池容量とした。結果を表1の該当欄に示す。ここではサンプル11の電池の電池容量を100としたときの相対値で示してある。
上記得られた各サンプル1〜11の評価用セルについて、25℃の環境下において、1Cの定電流で電池電圧が3.7Vになるまで充電し、次いで、3.7Vの定電圧で充電電流が1/10Cとなるまで充電した。その後、10Cの定電流で10秒間の放電を行った。そして、放電抵抗を(放電直前の電圧−放電10秒後の電圧)/放電電流により算出した。結果を表1の該当欄に示す。ここではサンプル11の電池の放電抵抗を100としたときの相対値で示してある。
上記得られた各サンプル1〜11の評価用セルについて、25℃の環境下において、1Cの定電流で電池電圧が4.1Vになるまで充電し、次いで、4.1Vの定電圧で充電電流が1/10Cとなるまで充電した(SOC100%)。その後、1Cの定電流で充電を行い、SOC160%の過充電状態とし、電流遮断機構が作動したものを「○」、電流遮断機構が作動しなかったものを「×」と表記した。結果を表1の該当欄に示す。
30 電池ケース
50 正極シート
56 正極活物質
58 導電材
60 負極シート
64 負極活物質層
70 セパレータ
90 電流遮断機構
100 リチウムイオン二次電池
Claims (6)
- 正極活物質層が正極集電体に保持された正極と、負極活物質層が負極集電体に保持された負極と、前記正極と前記負極との間に介在するセパレータとを備える電極体と、
前記電極体を非水電解液とともに収容する電池ケースと、
前記電池ケースに設けられ、前記電極体に接続された外部端子と、
前記電池ケースの内圧が予め定められた圧力以上に高くなると、前記電極体と前記外部端子との電気的な接続を遮断する電流遮断機構と
を備え、
前記正極活物質層は、正極活物質と導電材とを含んでおり、
前記導電材の少なくとも一部には、飽和環状炭化水素基を含む化合物が保持されており、
前記正極活物質層全体の固形分を100質量%とした場合に、前記化合物の含有量が0.5質量%以上8質量%以下である、非水電解液二次電池。 - 前記正極活物質層全体の固形分を100質量%とした場合に、前記化合物の含有量が4質量%以下である、請求項1に記載の非水電解液二次電池。
- 前記化合物は、予め定められた電圧以上の電圧になると前記飽和環状炭化水素基からプロトンが脱離し得るように構成されている、請求項1または2に記載の非水電解液二次電池。
- 前記飽和環状炭化水素基は、シクロヘキシル基である、請求項1〜3の何れか一つに記載の非水電解液二次電池。
- 前記化合物は、シクロヘキシルベンゼンである、請求項1〜4の何れか一つに記載の非水電解液二次電池。
- 前記非水電解液は、予め定められた電圧以上の電圧になるとガスを発生させるガス発生剤を含まない、請求項1〜5の何れか一つに記載の非水電解液二次電池。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014001961A JP5963010B2 (ja) | 2014-01-08 | 2014-01-08 | 非水電解液二次電池 |
| US14/589,546 US10446849B2 (en) | 2014-01-08 | 2015-01-05 | Nonaqueous electrolyte secondary battery |
| CN201510002647.2A CN104766991B (zh) | 2014-01-08 | 2015-01-05 | 非水电解液二次电池 |
| DE102015100122.5A DE102015100122B8 (de) | 2014-01-08 | 2015-01-07 | Sekundärbatterie mit nichtwässrigem Elektrolyt |
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| JP2014001961A JP5963010B2 (ja) | 2014-01-08 | 2014-01-08 | 非水電解液二次電池 |
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|---|---|
| JP2015130299A JP2015130299A (ja) | 2015-07-16 |
| JP5963010B2 true JP5963010B2 (ja) | 2016-08-03 |
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|---|---|
| US (1) | US10446849B2 (ja) |
| JP (1) | JP5963010B2 (ja) |
| CN (1) | CN104766991B (ja) |
| DE (1) | DE102015100122B8 (ja) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0296589B1 (en) | 1987-06-24 | 1993-09-01 | Hitachi Maxell Ltd. | Non-aqueous electrochemical cell |
| JPS6460959A (en) | 1987-08-31 | 1989-03-08 | Hitachi Maxell | Inorganic nonaqueous electrolyte battery |
| CA2163187C (en) | 1995-11-17 | 2003-04-15 | Huanyu Mao | Aromatic monomer gassing agents for protecting non-aqueous lithium batteries against overcharge |
| US6156459A (en) * | 1997-04-17 | 2000-12-05 | Fuji Photo Film Co., Ltd. | Nonaqueous-electrolytic solution secondary battery |
| WO2000073326A2 (en) * | 1999-06-02 | 2000-12-07 | The Government Of The United States Of America, Represented By The Secretary, Department Of Health And Human Services | Redox-stable, non-phosphorylated cyclic peptide inhibitors of sh2 domain binding to target protein, conjugates thereof, compositions and methods of synthesis and use |
| JP2002110251A (ja) * | 2000-09-27 | 2002-04-12 | Mitsubishi Cable Ind Ltd | リチウムイオン2次電池 |
| JP4056302B2 (ja) * | 2002-06-21 | 2008-03-05 | 三洋電機株式会社 | 非水電解質二次電池 |
| JP2009543293A (ja) * | 2006-06-27 | 2009-12-03 | ボストン−パワー,インコーポレイテッド | リチウムイオンセル用一体型電流遮断デバイス |
| JP4943242B2 (ja) * | 2007-06-20 | 2012-05-30 | ソニー株式会社 | リチウムイオン二次電池 |
| JP4636341B2 (ja) * | 2008-04-17 | 2011-02-23 | トヨタ自動車株式会社 | リチウム二次電池およびその製造方法 |
| JP4774426B2 (ja) * | 2008-06-27 | 2011-09-14 | 日立ビークルエナジー株式会社 | リチウム二次電池 |
| US8383274B2 (en) * | 2008-07-15 | 2013-02-26 | Ube Industries, Ltd. | Nonaqueous electrolyte solution for lithium battery, lithium battery using same, and formyloxy group-containing compound used therein |
| JP5780071B2 (ja) * | 2010-10-28 | 2015-09-16 | 三洋電機株式会社 | 非水電解液二次電池及びその製造方法 |
| JP5557793B2 (ja) * | 2011-04-27 | 2014-07-23 | 株式会社日立製作所 | 非水電解質二次電池 |
| JP2013004305A (ja) * | 2011-06-16 | 2013-01-07 | Toyota Motor Corp | 二次電池 |
| CN104067435B (zh) * | 2012-01-20 | 2016-09-28 | 丰田自动车株式会社 | 非水电解质二次电池的制造方法和非水电解质二次电池 |
| JP5660057B2 (ja) | 2012-01-24 | 2015-01-28 | トヨタ自動車株式会社 | 密閉型電池及び密閉型電池の製造方法 |
| JP5887957B2 (ja) | 2012-01-27 | 2016-03-16 | トヨタ自動車株式会社 | 密閉型電池及び密閉型電池の製造方法 |
| JP5655803B2 (ja) * | 2012-03-15 | 2015-01-21 | トヨタ自動車株式会社 | 非水電解質二次電池の製造方法 |
| JP2013239375A (ja) * | 2012-05-16 | 2013-11-28 | Toyota Motor Corp | リチウムイオン二次電池およびその製造方法 |
-
2014
- 2014-01-08 JP JP2014001961A patent/JP5963010B2/ja active Active
-
2015
- 2015-01-05 US US14/589,546 patent/US10446849B2/en active Active
- 2015-01-05 CN CN201510002647.2A patent/CN104766991B/zh active Active
- 2015-01-07 DE DE102015100122.5A patent/DE102015100122B8/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015100122A1 (de) | 2015-07-09 |
| CN104766991A (zh) | 2015-07-08 |
| JP2015130299A (ja) | 2015-07-16 |
| US20150194676A1 (en) | 2015-07-09 |
| CN104766991B (zh) | 2018-03-16 |
| US10446849B2 (en) | 2019-10-15 |
| DE102015100122B4 (de) | 2024-12-05 |
| DE102015100122B8 (de) | 2025-02-20 |
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