公开(公告)号：US20170309948A1

公开(公告)日：2017-10-26

申请号：US15521272

申请日：2015-10-16

Applicant: NEC Corporation

Inventor： Takeshi AZAMI

IPC: H01M10/05 ,  H01M4/13 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M10/05 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/028

Abstract: A secondary battery which is highly safe even when it becomes in excessively high-temperature conditions and is excellent in cycle characteristics, and an electrode for a secondary battery are provided. The present invention relates to an electrode for a secondary battery comprising a maleimide compound and a conductive agent, wherein the conductive agent comprises at least one selected from carbon nanotube and carbon nanohorns.

公开(公告)号：US20160020492A1

公开(公告)日：2016-01-21

申请号：US14771898

申请日：2014-02-28

Applicant: NEC Corporation

Inventor： Takeshi AZAMI ,  Noboru YOSHIDA ,  Ikiko SHIMANUKI

IPC: H01M10/0569 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/133

CPC classification number: H01M10/0569 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2004/027 ,  H01M2300/0034 ,  Y02T10/7011

Abstract: 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.

Abstract translation: 一种锂离子二次电池，其包含负极，所述负极包含选自天然石墨，人造石墨，不可石墨化碳和容易石墨化碳的一种或多种类型的碳; 和包含由下式（1）表示的环状磺酸酯的电解质溶液; 其中在式（1）中，R 1和R 2各自独立地为氢原子，具有1至5个碳原子的烷基，卤素基团或氨基，条件是R 1和R 2不同时为氢原子 ; R3表示选自碳原子数1〜5的亚烷基，羰基，磺酰基，碳原子数1〜6的氟代亚烷基，碳原子数2〜6的2价基团的连接基团， 哪个亚烷基单元或氟亚烷基单元通过醚基键合。