Title:
METHOD FOR MANUFACTURING AND DEVICE FOR MANUFACTURING LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2014/155808
Kind Code:
A1
Abstract:
After a positive electrode material is applied in a slurry form to the surface of a positive electrode plate using a first slit die coater, a hot air flow is supplied to the surface of a film formed from the positive electrode material, and drying is performed from the surface of the film formed from the positive electrode material to a first depth that does not reach the surface of the positive electrode plate. Thereafter, even if an insulating material is applied in a slurry form to the surface of the film formed from the positive electrode material by a second slit die coater, the thickness of a mixed layer formed at the interface of the positive electrode material layer and the insulating material layer is 5 µm or less, and a thickness can be assured for an insulating material layer that functions as a separator. Thus, reductions in manufacturing yield for a lithium ion battery can be prevented.
Inventors:
TAKAHARA YOICHI (JP)
NISHIKI MASASHI (JP)
KUBOTA CHIEMI (JP)
NINOMIYA EISAKU (JP)
MATSUOKA MASAOKI (JP)
FUJII TAKESHI (JP)
NISHIKI MASASHI (JP)
KUBOTA CHIEMI (JP)
NINOMIYA EISAKU (JP)
MATSUOKA MASAOKI (JP)
FUJII TAKESHI (JP)
Application Number:
PCT/JP2013/080042
Publication Date:
October 02, 2014
Filing Date:
November 06, 2013
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
H01M10/058; H01M4/139; H01M50/406
Foreign References:
| JP2005353584A | 2005-12-22 | |||
| JP2003045491A | 2003-02-14 | |||
| JP5165158B1 | 2013-03-21 |
Attorney, Agent or Firm:
TSUTSUI, YAMATO (JP)
Tsutsui Daiwa (JP)
Tsutsui Daiwa (JP)
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