Title:
The electrolysis solution for rechargeable batteries used for a rechargeable battery and it
Document Type and Number:
Japanese Patent JP6024457
Kind Code:
B2
Abstract:
Provided is a lithium ion secondary battery in which a high-energy type negative electrode is used, the lithium ion secondary battery having high capacity and excellent thermal stability. A secondary battery according to the present embodiment comprises: an electrode element having a positive electrode and a negative electrode opposed each other; an electrolyte; and an outer casing containing the electrode element and the electrolyte, wherein the negative electrode comprises a negative electrode active material, which includes at least one of a metal (a) capable of alloying with lithium and a metal oxide (b) capable of occluding and releasing lithium ions, is bonded to a negative electrode current collector by a negative electrode bonding agent, and the electrolyte comprises 70¼99 vol% of a phosphoric acid ester compound and 1¼15 vol% of a fluorinated carbonate compound. A secondary battery electrolyte according to the present embodiment includes 70¼99 vol% of a phosphoric acid ester compound and 1¼15 vol% of a fluorinated carbonate compound.
Inventors:
Kazuaki Matsumoto
Daisuke Kawasaki
Daisuke Kawasaki
Application Number:
JP2012531789A
Publication Date:
November 16, 2016
Filing Date:
August 18, 2011
Export Citation:
Assignee:
NEC
International Classes:
H01M10/052; H01M4/13; H01M4/134; H01M4/36; H01M4/38; H01M4/48; H01M10/0567; H01M10/0568; H01M10/0569; H01M10/0585
Domestic Patent References:
| JPH08111238A | 1996-04-30 | |||
| JP2007504628A | 2007-03-01 | |||
| JP2005071678A | 2005-03-17 |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata