发明名称 |
LITHIUM ION SECONDARY BATTERY |
摘要 |
A lithium ion secondary battery comprising a negative electrode comprising one or more types of carbon selected from the group consisting of natural graphite, artificial graphite, non-graphitizable carbon and easily graphitizable carbon; and an electrolyte solution comprising a cyclic sulfonic acid ester represented by the following formula (1);;;wherein in the formula (1), R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group or an amino group with the proviso that R1 and R2 are not hydrogen atoms at the same time; R3 represents a linkage group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and a divalent group having 2 to 6 carbon atoms in which alkylene units or fluoroalkylene units are bonded through an ether group. |
申请公布号 |
US2016020492(A1) |
申请公布日期 |
2016.01.21 |
申请号 |
US201414771898 |
申请日期 |
2014.02.28 |
申请人 |
NEC Corporation |
发明人 |
AZAMI Takeshi;YOSHIDA Noboru;SHIMANUKI Ikiko |
分类号 |
H01M10/0569;H01M4/587;H01M10/0525;H01M4/133 |
主分类号 |
H01M10/0569 |
代理机构 |
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代理人 |
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主权项 |
1. A lithium ion secondary battery comprising:
a negative electrode comprising a negative electrode active material comprising one or more types of carbon selected from the group consisting of natural graphite, artificial graphite, non-graphitizable carbon and easily graphitizable carbon; and an electrolyte solution comprising a cyclic sulfonic acid ester represented by the following formula (1):wherein, in the formula (1), R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group or an amino group with the proviso that R1 and R2 are not hydrogen atoms at the same time; R3 represents a linkage group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and a divalent group having 2 to 6 carbon atoms in which alkylene units or fluoroalkylene units are bonded through an ether group. |
地址 |
Minato-ku, Tokyo JP |