JP6583069B2 - リチウムイオン二次電池の製造方法 - Google Patents
リチウムイオン二次電池の製造方法 Download PDFInfo
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- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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Description
まず,本形態に係る方法により製造される電池100(図1参照)について説明する。図1は,本形態に係る電池100の概略構成図である。電池100は,図1に示すように,電極体110および電解液120を電池ケース130の内部に収容してなるリチウムイオン二次電池である。また,電池ケース130は,ケース本体131と封口板132とを備えている。封口板132は,絶縁部材133を備えている。
次に,第2の形態について説明する。本形態においても,製造されるリチウムイオン二次電池は,第1の形態と同様である。また,本形態においても,湿潤造粒体を形成し,その湿潤造粒体を用いて成膜工程を行うことにより正極板を製造する。ただし,本形態では,湿潤造粒体の形成手順が,第1の形態と異なる。
次に,上記の第1の形態または第2の形態に係る実施例について,比較例とともに説明する。まず,実施例および比較例では,それぞれ異なる方法により正極板を作製した。さらに,作製した正極板を用いて,リチウムイオン二次電池を作製した。実施例および比較例のリチウムイオン二次電池の作製において,負極板等の正極板以外の構成部材については,同じ材料により同じ方法で作製したものを用いた。
活物質 :LiNi1/2Mn3/2O4 平均粒径50μm
導電材 :AB 平均粒径0.1〜1μm
結着材 :PVdF
添加剤 :LPO 平均粒径3μm
溶媒 :NMP
活物質 :88.8wt%
導電材 :7.9wt%
結着材 :1.5wt%
添加剤 :1.8wt%
51 導電材
52 結着材
53 リン酸トリリチウム(LPO)
54 溶媒
60,70 第1混合物
61,71 第2混合物
62,72 湿潤造粒体
100 電池
140 正極板
141 正極集電箔
142 正極活物質層
Claims (3)
- 活物質,導電材,結着材を含む活物質層と,
前記活物質層が表面に設けられた集電箔とにより構成された電極板を有するリチウムイオン二次電池の製造方法において,
前記活物質および前記導電材のうちの一方である第1の電極材料の粉末を,リン酸トリリチウムの粉末と混合して第1の混合物とする第1の混合工程と,
前記第1の混合物を,前記活物質および前記導電材のうちの他方である第2の電極材料の粉末と混合して第2の混合物とする第2の混合工程と,
前記第2の混合物を,前記結着材および溶媒と混合して湿潤造粒体を形成する第3の混合工程と,
前記湿潤造粒体を前記集電箔の表面に付着させて前記活物質層を形成する成膜工程とを有し,
前記第2の混合工程を,前記第1の混合工程よりも短時間で行うことを特徴とするリチウムイオン二次電池の製造方法。 - 請求項1に記載のリチウムイオン二次電池の製造方法において,
前記第1の混合工程では,前記第1の電極材料として前記導電材を用い,
前記第2の混合工程では,前記第2の電極材料として前記活物質を用いることを特徴とするリチウムイオン二次電池の製造方法。 - 請求項2に記載のリチウムイオン二次電池の製造方法において,
前記第1の混合工程では,撹拌翼を,20m/sec以上の周速で,15sec以上,回転させることにより混合を行うことを特徴とするリチウムイオン二次電池の製造方法。
Priority Applications (3)
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JP2016049168A JP6583069B2 (ja) | 2016-03-14 | 2016-03-14 | リチウムイオン二次電池の製造方法 |
US15/454,574 US10497931B2 (en) | 2016-03-14 | 2017-03-09 | Method of manufacturing lithium ion secondary battery |
CN201710142511.0A CN107195972B (zh) | 2016-03-14 | 2017-03-10 | 锂离子二次电池的制造方法 |
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JP2016049168A JP6583069B2 (ja) | 2016-03-14 | 2016-03-14 | リチウムイオン二次電池の製造方法 |
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JP6583069B2 true JP6583069B2 (ja) | 2019-10-02 |
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JP6735036B2 (ja) * | 2019-01-15 | 2020-08-05 | トヨタ自動車株式会社 | リチウムイオン二次電池 |
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JP3134595B2 (ja) * | 1993-05-28 | 2001-02-13 | 松下電器産業株式会社 | 硫化物系リチウムイオン導電性固体電解質及びその合成法 |
CN1320683C (zh) * | 2002-03-08 | 2007-06-06 | 居永明 | 可反复充放电的锂离子动力电池及其制造方法 |
EP1786052B1 (en) * | 2004-08-18 | 2012-09-19 | Central Research Institute of Electric Power Industry | Organic electrolyte battery, and process for producing positive electrode sheet for use therein |
JP5051988B2 (ja) * | 2005-07-29 | 2012-10-17 | 三洋電機株式会社 | 電極の製造方法、その製造方法に用いる電極の製造装置、及び当該電極の製造方法により製造された電極を用いた電池 |
WO2007139130A1 (ja) * | 2006-05-31 | 2007-12-06 | Sanyo Electric Co., Ltd. | 高電圧充電型非水電解質二次電池 |
JP4240078B2 (ja) * | 2006-07-19 | 2009-03-18 | トヨタ自動車株式会社 | リチウム二次電池 |
JP4778034B2 (ja) | 2008-01-30 | 2011-09-21 | パナソニック株式会社 | 非水系二次電池の製造方法 |
JP5526636B2 (ja) | 2009-07-24 | 2014-06-18 | ソニー株式会社 | 非水電解質二次電池の正極活物質、非水電解質二次電池の正極および非水電解質二次電池 |
KR101077869B1 (ko) * | 2010-04-30 | 2011-10-28 | 주식회사 엘지화학 | 이차전지용 양극 |
KR101446491B1 (ko) * | 2012-03-16 | 2014-10-06 | 주식회사 엘지화학 | 리튬 복합 전이금속 산화물 제조용 전구체 및 그 제조방법 |
JP6015591B2 (ja) * | 2012-10-26 | 2016-10-26 | トヨタ自動車株式会社 | 非水電解液二次電池 |
WO2014184925A1 (ja) * | 2013-05-16 | 2014-11-20 | トヨタ自動車株式会社 | 電極ペーストの製造方法 |
US9748616B2 (en) * | 2013-08-20 | 2017-08-29 | University Of Calcutta | Regeneration of cathode material of lithium-ion batteries |
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CN107195972B (zh) | 2019-09-27 |
US20170263918A1 (en) | 2017-09-14 |
CN107195972A (zh) | 2017-09-22 |
US10497931B2 (en) | 2019-12-03 |
JP2017168189A (ja) | 2017-09-21 |
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