Title:
FLAME RETARDANT FOR LITHIUM ION SECONDARY BATTERIES, ELECTROLYTE SOLUTION FOR LITHIUM ION SECONDARY BATTERIES, LITHIUM ION SECONDARY BATTERY, AND POWER SUPPLY OR DEVICE SYSTEM UTILIZING LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/132842
Kind Code:
A1
Abstract:
To improve the safety of a lithium ion secondary battery. A flame retardant for lithium ion secondary batteries, which contains a compound that has phosphorus as a ligand, and wherein one or more elements selected from among Cu, Ag, Fe, Ru and Pt and a halogen element are contained in the compound and the halogen element is, for example, fluorine. In cases where an electrolyte solution for lithium ion secondary batteries contains this flame retardant for lithium ion secondary batteries, the amount of the compound added is 10% by weight or more relative to the weight of the electrolyte solution for lithium ion secondary batteries.
Inventors:
NISHIMURA KATSUNORI (JP)
TSUBOUCHI SHIGETAKA (JP)
SUZUKI SHOHEI (JP)
TSUBOUCHI SHIGETAKA (JP)
SUZUKI SHOHEI (JP)
Application Number:
PCT/JP2014/055214
Publication Date:
September 11, 2015
Filing Date:
March 03, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01M10/0567; H01M10/052
Domestic Patent References:
| WO2012029420A1 | 2012-03-08 |
Foreign References:
| JP2008251259A | 2008-10-16 | |||
| JP2004014351A | 2004-01-15 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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