Title:
POLYMER FOR POSITIVE ELECTRODE ACTIVE MATERIAL COATING OF LITHIUM ION BATTERIES
Document Type and Number:
WIPO Patent Application WO/2015/111166
Kind Code:
A1
Abstract:
Provided is a polymer for positive electrode active material coating of lithium ion batteries, which is capable of suppressing gas generation during storage at high temperatures and is also capable of preventing increase of battery resistance.
A polymer for positive electrode active material coating of lithium ion batteries, which is represented by formula (1).
(In formula (1), x represents a positive number; y represents a number of 0 or more; each of R1-R6 independently represents a hydrogen atom or a linear or branched hydrocarbon group; A represents a group represented by formula (1A) (wherein A1 represents a linear or branched alkylene group, a linear or branched alkenylene group, or a substituted or unsubstituted monocyclic or fused polycyclic arylene group; A2 represents an alkylene group represented by -(CH2)n-, wherein n represents an integer of 0-10; X represents a hydrogen atom or an alkali metal atom; and the wavy line represents a bonding position); and B represents a polar group.)
Inventors:
IWAYASU NORIO (JP)
Application Number:
PCT/JP2014/051338
Publication Date:
July 30, 2015
Filing Date:
January 23, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01M4/62; H01M4/13; H01M4/36
Domestic Patent References:
| WO2011101987A1 | 2011-08-25 |
Foreign References:
| JP2004171907A | 2004-06-17 | |||
| JP2013114945A | 2013-06-10 | |||
| JP2009099530A | 2009-05-07 | |||
| JP2011138732A | 2011-07-14 |
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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