Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP4938286
Kind Code:
B2
Abstract:
A high power lithium-ion secondary battery having an increased capacity and capable of maintaining high discharge voltage and repeating charging/discharging high current. A lithium-ion secondary battery having; an electrode group formed by laminating or winding a negative electrode layer and a positive electrode layer so as to interpose a separator made of synthetic resin, the negative electrode layer containing a material capable of intercalating/deintercalating lithium-ion, and a positive electrode layer including a lithium-containing metallic oxide; and a non-aqueous electrolyte containing lithium salt, where the electrode group is immersed. The positive electrode material unit contains a fluorinated lithium-containing metallic oxide as a main material, and the separator possesses a hydrophilic group. Further, the positive electrode material preferably contains a main material including LiNi x Co y Mn z O 2 , where 0.4 x 1,0 y 0.2, 0 z 0.2, x + y + z = 1.
Inventors:
Hitoshi Takebayashi
Motomiya Makoto
Tetsuro Tojo
Shinji Saito
Takehiko Sawai
Katsuyuki Negishi
Masahiro Kikuchi
Motomiya Makoto
Tetsuro Tojo
Shinji Saito
Takehiko Sawai
Katsuyuki Negishi
Masahiro Kikuchi
Application Number:
JP2005319647A
Publication Date:
May 23, 2012
Filing Date:
November 02, 2005
Export Citation:
Assignee:
Toyo Tanso Co., Ltd.
International Classes:
H01M4/505; H01M4/02; H01M4/13; H01M4/131; H01M4/36; H01M4/525; H01M4/62; H01M10/05; H01M10/0525; H01M10/0566; H01M10/0585; H01M10/0587; H01M50/409; H01M50/489
Domestic Patent References:
| JP11317217A | ||||
| JP8213014A | ||||
| JP2005011688A | ||||
| JP11297298A | ||||
| JP5041252A | ||||
| JP2003077460A | ||||
| JP2000149945A | ||||
| JP2005259703A | ||||
| JP2006202678A |
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Makoto Suhara