Title:
POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/084622
Kind Code:
A1
Abstract:
Disclosed is a positive electrode for lithium secondary batteries, which comprises a conductive layer formed on the surface of a positive electrode collector, and an active material layer formed on the conductive layer. The conductive layer contains at least one water-insoluble polymer which is soluble in an organic solvent and functions as a binder, and a conductive material. The active material layer contains at least one aqueous polymer which is soluble or dispersible in water and functions as a binder, a positive electrode active material and a conductive material. The average particle diameter (DA) of the conductive material in the conductive layer is smaller than the average particle diameter (DB) of the conductive material in the active material layer.
Inventors:
SAKAMOTO, Hiroyuki (1 Toyota-cho, Toyota-sh, Aichi 71, 47185, JP)
Application Number:
JP2009/051219
Publication Date:
July 29, 2010
Filing Date:
January 26, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 47185, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 47185, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 47185, JP)
International Classes:
H01M4/02; H01M4/04; H01M4/62
Attorney, Agent or Firm:
ABE, Makoto (Teshima Patent Law Firm Nagoya Office, CRD Marunouchi 5th Floor3-17-13 Marunouchi2,Naka-k, Nagoya-shi Aichi 02, 46000, JP)
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