Title:
多孔性活性層がコーティングされた有機/無機複合分離膜及びこれを備えた電気化学素子
Document Type and Number:
Japanese Patent JP4846849
Kind Code:
B2
Abstract:
An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.
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Inventors:
Kim, Suk-ku
Thorn, Joan-Young
Park, Jok-hyuk
Hyun-Min, Jean
Shin, Byang-jin
Lee, San-Yang
Hong, Jean-Hyuk
Thorn, Joan-Young
Park, Jok-hyuk
Hyun-Min, Jean
Shin, Byang-jin
Lee, San-Yang
Hong, Jean-Hyuk
Application Number:
JP2009548167A
Publication Date:
December 28, 2011
Filing Date:
February 05, 2008
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
B32B5/32; B32B27/32; H01M50/403; H01M50/451; H01M50/491
Domestic Patent References:
| JP2008143005A | ||||
| JP2005302341A | ||||
| JP2006032359A | ||||
| JP2000030686A | ||||
| JP2004506542A | ||||
| JP2005276503A |
Foreign References:
| WO2006068428A1 |
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Takeshi Katata
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Takeshi Katata