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    • 1. 发明申请
    • LITHIUM ION BATTERY
    • 锂离子电池
    • US20110183213A1
    • 2011-07-28
    • US13004161
    • 2011-01-11
    • Ryo INOUETakefumi OKUMURA
    • Ryo INOUETakefumi OKUMURA
    • H01M10/056
    • H01M10/0567H01M10/0568H01M10/0569
    • An object of the present invention is to provide a lithium ion battery in which the deterioration during the high temperature storage is suppressed. The lithium ion battery is a lithium ion battery 100 having a cathode 3 capable of occluding and releasing lithium ions, an anode 6 capable of occluding and releasing lithium ions, a separator 7 disposed between the cathode 3 and the anode 6 and an organic electrolyte solution, wherein the organic electrolyte solution contains a plurality of solvents, an additive and an electrolyte, the electrolyte contains lithium hexafluorophosphate (LiPF6), and the additive contains vinylene carbonate or a derivative thereof and a compound represented by the following formula (I): wherein R1, R2 and R3 are each independently a fluorine atom or a fluorinated alkyl group having 1 to 3 carbon atoms.
    • 本发明的目的在于提供抑制高温保存时的劣化的锂离子电池。 锂离子电池是具有能够吸留和释放锂离子的阴极3的锂离子电池100,能够吸留和释放锂离子的阳极6,设置在阴极3和阳极6之间的隔膜7和有机电解质溶液 其中,所述有机电解液含有多种溶剂,添加剂和电解质,所述电解质含有六氟磷酸锂(LiPF 6),所述添加剂含有碳酸亚乙烯酯或其衍生物和下式(I)表示的化合物:式 R 1,R 2和R 3各自独立地为氟原子或具有1〜3个碳原子的氟化烷基。
    • 2. 发明申请
    • LITHIUM SECONDARY BATTERY
    • 锂二次电池
    • US20110195319A1
    • 2011-08-11
    • US13023617
    • 2011-02-09
    • Takefumi OKUMURARyo INOUE
    • Takefumi OKUMURARyo INOUE
    • H01M10/02
    • H01M10/0525H01M4/505H01M4/525H01M10/0567H01M10/0569H01M2300/0037Y02T10/7011
    • The object of the present invention is to provide a lithium secondary battery which can suppress a deterioration for a period of high temperature storage at 50° C. or more.The present invention relates to a lithium secondary battery comprising a positive electrode which can occlude and discharge lithium ion, a negative electrode which can occlude and discharge lithium ion, a separator which is disposed between the positive electrode and the negative electrode, and an electrolyte, wherein the electrolyte includes a compound within whose molecule a plurality of polymerizable functional groups are included.Herein, the electrolyte can comprise a compound represented by the formula 3: wherein each of Z1 and Z2 represents a polymerizable functional group including any one selected from the group consisting of allyl group, methallyl group, vinyl group, acryl group and methacryl group.
    • 本发明的目的是提供一种能够抑制在50℃以上的高温保存期间的劣化的锂二次电池。 锂二次电池技术领域本发明涉及一种锂二次电池,其包含可以封闭和放出锂离子的正极,可以封闭和放出锂离子的负极,设置在正极和负极之间的隔膜和电解质, 其中所述电解质包括其分子内包含多个可聚合官能团的化合物。 这里,电解质可以包括由式3表示的化合物:其中Z 1和Z 2各自表示包括选自烯丙基,甲代烯丙基,乙烯基,丙烯酰基和甲基丙烯酰基中的任何一种的可聚合官能团。