Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP5888167
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a battery which can operate a pressure type current interruption mechanism reliably by generating more gas efficiently, when the positive electrode potential exceeds a gas generation potential.SOLUTION: A battery 100 includes a pressure type current interruption mechanism 170, and a nonpolar gas generation agent 118 which generates gas when the positive electrode potential Ea of an electrode body 120 exceeds a gas generation potential Ec. The positive electrode active material layer 123 of a positive electrode plate 121 constituting the electrode body 120 contains carbon black 126 where at least some of functional groups on the surface thereof are low polarity functional groups having a polarity lower than that of a hydroxy group.
Inventors:
Kenta Ishii
Junya Mori
Junya Mori
Application Number:
JP2012163976A
Publication Date:
March 16, 2016
Filing Date:
July 24, 2012
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/052; H01M2/16; H01M4/62; H01M10/0567
Domestic Patent References:
| JP2000173583A | ||||
| JP2006324235A |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office