Title:
改善された熱安定性を有するリチウムイオンバッテリ
Document Type and Number:
Japanese Patent JP6813487
Kind Code:
B2
Abstract:
Aspects of the invention are based on the discovery that cathode materials and lithium ion batteries comprising the cathode material, having improved thermal stability may be produced from a cathode material that is comprised of a mixture of a lithium metal oxide and a lithium metal phosphate wherein the lithium metal phosphate comprises a volume fraction of secondary particles having a size of 0.1 to 3 μm that is from 5 to 100%, based on the total content of lithium metal phosphate. More specifically cathodes comprising lithium metal phosphates having the recited secondary particle ranges help provide cathode materials that are capable of passing the nail penetration test without generating smoke or flames. Methods of forming the cathode and lithium ion battery comprising the cathode are also provided.
Inventors:
Hideaki Maeda
Daojin Han
Cyan Yang Thai
Jin Jin
Chunhua Hoang
Daojin Han
Cyan Yang Thai
Jin Jin
Chunhua Hoang
Application Number:
JP2017531850A
Publication Date:
January 13, 2021
Filing Date:
December 18, 2014
Export Citation:
Assignee:
Dow Global Technologies LLC
International Classes:
H01M4/1391; C01B25/45; H01M4/1397; H01M4/36; H01M4/505; H01M4/525; H01M4/58
Domestic Patent References:
| JP2012190786A | ||||
| JP2002151072A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Naoki Kobayashi
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Naoki Kobayashi