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公开(公告)号：JP5376036B2
公开(公告)日：2013-12-25
申请号：JP2012235732
申请日：2012-10-25
Applicant: 日産自動車株式会社
Inventor： 信一 田崎
CPC classification number: Y02E60/122 , Y02T10/7011
Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery in which a resistance rise is inhibited and an internal short circuit is prevented to achieve excellent charge-discharge cycle characteristics by preventing an electrolyte shortage in an electrode layer, preventing the occurrence of a gap, and allowing the accommodation of variations in cell thickness. SOLUTION: The nonaqueous electrolyte secondary battery comprises a storage element including a positive electrode, a negative electrode comprising an active material containing an element which can be alloyed with lithium, and a separator containing an electrolyte, and the porosity of the separator decreases gradually with increasing distance from the negative electrode side toward the positive electrode side. COPYRIGHT: (C)2013,JPO&INPIT
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Patent Agency Ranking
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公开(公告)号：JPWO2015146857A1
公开(公告)日：2017-04-13
申请号：JP2016510310
申请日：2015-03-20
Applicant: 日産自動車株式会社
Inventor： 智久 松野 , 智久 松野 , 博文 安田 , 博文 安田 , 奈穂子 西村 , 奈穂子 西村 , 和幸 坂本 , 和幸 坂本 , 鈴木 陽介 , 陽介 鈴木 , 信一 田崎 , 信一 田崎
IPC: H01M4/587 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0565 , H01M10/0567
CPC classification number: H01M10/0567 , H01M4/133 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0565 , H01M2220/20 , H01M2300/0085 , Y02T10/7011
Abstract: 【課題】人造黒鉛粒子等の炭素材料を負極活物質に用いた非水電解質二次電池において、充放電時での電解質による負極活物質の局所的な反応を抑制し、電池の容量維持率を向上することのできる手段を提供する。【解決手段】炭素系負極活物質を含む負極と、電解質層と、正極活物質を含む正極とを含み、前記負極活物質のタップ密度が0.96g/cc以上であることを特徴とする非水電解質二次電池により達成される。【選択図】なし
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公开(公告)号：JP5326553B2
公开(公告)日：2013-10-30
申请号：JP2008328269
申请日：2008-12-24
Applicant: 日産自動車株式会社
IPC: H01M10/052 , H01M4/70 , H01M10/0566 , H01M10/0585
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011
Abstract: PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery capable of preventing deterioration of battery output and suppressing shortage of electrolytic solution. SOLUTION: The non-aqueous electrolyte secondary battery 10 has a power generation element 17 having a unit battery layer in which a negative electrode 23 forming a negative electrode active material layer 12 containing a negative electrode active material on the surface of a current collector 11, an electrolyte layer containing a nonaqueous electrolyte, and a positive electrode 24 forming a positive electrode active material layer 15 containing a positive electrode active material on the surface of a current collector 14 are laminated in the order, arranged inside an outer package body 22. The battery 10 has an electrolyte retaining layer 26 to retain the electrolytic solution between the outermost layer of the power generation element 17 and the outer package body 22. COPYRIGHT: (C)2010,JPO&INPIT
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