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Title:
GAS ABSORBING MATERIAL FOR LITHIUM ION BATTERIES
Document Type and Number:
WIPO Patent Application WO/2019/097739
Kind Code:
A1
Abstract:
A lithium ion battery E is provided with a positive electrode terminal 1, a negative electrode terminal 2 and a battery case 3 which is an airtight container; and the battery case 3 internally contains an electrode body 10. The electrode body 10 comprises a positive electrode collector 11, an electrode plate 12 for positive electrodes, a negative electrode collector 13 and an electrode plate 14 for negative electrodes, while having a structure wherein the electrode plate 12 for positive electrodes and the electrode plate 14 for negative electrodes are laminated, with a separator 15 being interposed therebetween. In addition, a carbon-based porous material is arranged within the battery case 3. This carbon-based porous material has methane gas absorbing ability, and preferably has carbon dioxide gas absorbing ability. With respect to this carbon-based porous material, the pore volume of pores having a pore diameter of 4.5 Å or more is 0.3 mL/g or less. This gas absorbing material for lithium ion batteries is capable of suitably absorbing a methane gas that is generated when an abnormality occurs in a lithium ion battery and the like without generating a gas or the like by reacting with the electrolyte solution of the lithium ion battery.

Inventors:
KANEKO Jun (10-1 Nakano 4-chome, Nakano-k, Tokyo 01, 〒1640001, JP)
MIYAMOTO Shingo (10-1 Nakano 4-chome, Nakano-k, Tokyo 01, 〒1640001, JP)
NOZUE Mitsuru (10-1 Nakano 4-chome, Nakano-k, Tokyo 01, 〒1640001, JP)
Application Number:
JP2018/013179
Publication Date:
May 23, 2019
Filing Date:
March 29, 2018
Export Citation:
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Assignee:
KURITA WATER INDUSTRIES LTD. (10-1, Nakano 4-chome Nakano-k, Tokyo 01, 〒1640001, JP)
International Classes:
H01M10/052
Domestic Patent References:
WO2011135818A12011-11-03
Foreign References:
JP2003036850A2003-02-07
JP2017183080A2017-10-05
JP2003151558A2003-05-23
US20130236749A12013-09-12
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (Sansui Patent Firm, 4th Floor Akasaka Wing Bldg., 6-6-15, Akasaka, Minato-k, Tokyo 52, 〒1070052, JP)
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