Title:
新規なオニウム塩、新規なオニウム塩を含む非水系電池用電解液、およびオニウム塩を含む電解液を使用した負電極の最適化方法
Document Type and Number:
Japanese Patent JP4270449
Kind Code:
B2
Abstract:
Optimization of the interface of a negative electrode in an electrochemical device comprising a negative electrode, electrolyte and a positive electrode. Optimization of the interface of a negative electrode in an electrochemical device comprising a negative electrode, electrolyte and a positive electrode, comprises: (a) forming an electrode structure by placing an electrolyte containing an onium salt of formula R 1>-C(=O)-N ->(R 2>). Z +> (I) between a negative electrode and a positive electrode; and (b) forming a passivation layer comprising a decomposition product of the electrolyte or salt on the surface of the negative electrode by applying a voltage between the negative electrode and the positive electrode so the potential of the negative electrode is -1 to -5V based on the potential relative to the reference electrode of I ->/I 3> ->. R 1>optionally substituted monovalent hydrocarbon group; R 2>a monovalent organic residue; Z +>monovalent cation. Independent claims are also included for: (1) a negative electrode where the interface is optimized; (2) an electrochemical device which has the negative electrode; (3) an onium salt (I); (4) the use of the onium salt as an electrolyte; (5) an electrolyte for a non-aqueous electrochemical device containing the onium salt.
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Inventors:
Satoshi Matsunaga
Takeo Kawahara
Matsumoto Hajime
Takeo Kawahara
Matsumoto Hajime
Application Number:
JP2003517969A
Publication Date:
June 03, 2009
Filing Date:
July 29, 2002
Export Citation:
Assignee:
Tokuyama Corporation
National Institute of Advanced Industrial Science and Technology
National Institute of Advanced Industrial Science and Technology
International Classes:
C07C211/63; H01M4/06; C07C233/05; C07C311/51; C07D207/06; C07D233/54; C07D233/58; C07F9/54; C07F9/6568; H01M4/13; H01M4/139; H01M6/16; H01M10/05; H01M10/0568
Domestic Patent References:
| JP2002075443A |
Other References:
松本一ら,新規非対称アミドアニオンからなる常温溶融塩の合成とその物性,電気化学秋季大会講演要旨集,2001年 9月13日,vol.2001,第76頁
Attorney, Agent or Firm:
Soichi Takezawa
Noritsugu Nakama
Noritsugu Nakama