Title:
リチウムイオン電池用セパレータおよびそれを用いたリチウムイオン電池
Document Type and Number:
Japanese Patent JP5838042
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a short circuit between a positive electrode and a negative electrode caused by fusion of a separator in overcharge of a battery and to prevent a sharp rise in a battery temperature due to rapid Joule heat generation caused by the short circuit.SOLUTION: A lithium ion battery includes a positive electrode, a negative electrode, a separator for maintaining electric insulation of the positive electrode and the negative electrode, and an electrolyte in a battery container. A semiconductive layer is provided between the positive electrode and the negative electrode. A semiconductor layer includes an insulator and includes a semiconductor or a conductor. An electric resistivity of the semiconductive layer is 10Ωm to 10Ωm, for example.
Inventors:
Akihiko Noya
Yoshinori Masanori
Yoshinori Masanori
Application Number:
JP2011110007A
Publication Date:
December 24, 2015
Filing Date:
May 17, 2011
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H01M2/16; H01M2/18; H01M10/0525
Domestic Patent References:
| JP2011503828A | ||||
| JP2007095656A |
Foreign References:
| WO2007066768A1 |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki