Title:
非水電解液電池
Document Type and Number:
Japanese Patent JP5809888
Kind Code:
B2
Abstract:
Provided is a nonaqueous electrolytic solution battery in which safety at the time of battery abnormality can be ensured and in which reduction in capacity at the time of high-rate discharge can be suppressed. In this lithium-ion secondary battery (20), an electrode group (6) is housed in a battery container (7). In the electrode group (6), a positive electrode plate and a negative electrode plate are wound with a separator (W5) therebetween. The positive electrode plate has an aluminum foil (W1) as a positive electrode charge collector. A positive electrode mixture layer (W2) containing a positive electrode active material is formed on both surfaces of the aluminum foil (W1). A flame retardant layer (W6) containing a flame retardant is formed on the surface of each positive electrode mixture layer (W2). The percentage of the flame retardant to the positive electrode mixture is set to 8 wt% or less. The negative electrode plate has a rolled copper foil (W3) as a negative electrode charge collector. A negative electrode mixture layer (W4) containing a negative electrode active material is formed on both surfaces of the rolled copper foil (W3). Thus, the transfer resistance of lithium ions is reduced at the time of high-rate discharge.
Inventors:
Tomonobu Tsujikawa
Masayasu Arakawa
Takayuki Kimura
Kenichi Danma
Koji Hayashi
Masayasu Arakawa
Takayuki Kimura
Kenichi Danma
Koji Hayashi
Application Number:
JP2011192038A
Publication Date:
November 11, 2015
Filing Date:
September 02, 2011
Export Citation:
Assignee:
Ntt Facilities Co., Ltd.
Shin-Kobe Electric Machinery Co., Ltd.
Shin-Kobe Electric Machinery Co., Ltd.
International Classes:
H01M10/058; H01M4/13; H01M4/62; H01M10/0525; H01M10/0566
Domestic Patent References:
| JP2006261093A | ||||
| JP2005158627A | ||||
| JP2009016106A | ||||
| JP6310174A | ||||
| JP6283205A |
Foreign References:
| WO2010101180A1 | ||||
| WO2004062002A1 |
Attorney, Agent or Firm:
Toshiaki Igarashi