Title:
An electrochemistry element provided with a separator and this to which the coat of the porous coating layer was carried out
Document Type and Number:
Japanese Patent JP5939546
Kind Code:
B2
Abstract:
A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer, wherein the binder polymer includes a first polyvinylidene fluoride-based copolymer having solubility of 25 weight% or more with respect to acetone at 35 °C; a second polyvinylidene fluoride-based copolymer having solubility of 10 weight% or less with respect to acetone at 35 °C; and a polymer having a cyano group. This separator decelerates deterioration of life span of an electrochemical device, and prevents disintercalation of inorganic particles in the porous coating layer, thereby improving safety of the electrochemical device.
Inventors:
Bae, Yun-Jun
Park, pill-kyu
Kim, John-Huang
Han, Dong-Hun
Lee, Han-ho
Lee, San-Yang
You, Ji Sun
Hyun-Min, Jean
Park, pill-kyu
Kim, John-Huang
Han, Dong-Hun
Lee, Han-ho
Lee, San-Yang
You, Ji Sun
Hyun-Min, Jean
Application Number:
JP2014090253A
Publication Date:
June 22, 2016
Filing Date:
April 24, 2014
Export Citation:
Assignee:
LG HAUSYS,LTD.
Toray Battery Separator Film Co., Ltd.
Toray Battery Separator Film Co., Ltd.
International Classes:
H01G11/52; H01M10/36; H01M50/417; H01M50/426; H01M50/451; H01M50/434
Domestic Patent References:
| JP2011515799A | ||||
| JP2008524824A | ||||
| JP2008503049A |
Other References:
物理学辞典,株式会社培風館,1992年,改訂版,p.2143
Attorney, Agent or Firm:
Takeshi Katata
Matsuno Chihiro
Hiroshi Morita
Matsuno Chihiro
Hiroshi Morita
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