IP Library Granted Patent US 8,455,053
Granted Patent B2
US 8,455,053 · App. 12/167,005 · Granted Jun 4, 2013

Separator, battery using the same, and method for manufacturing separator

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,455,053
App. No.
12/167,005
Granted
Jun 4, 2013
Kind
B2
Abstract

A separator which includes a covering layer in which a fine framework of polyolefin resin is coated with a glass layer and an exposed layer in which the polyolefin resin is exposed is provided. A battery is provided having a cathode and an anode, an electrolyte, and a separator where the separator has the covering layer in which the fine framework of polyolefin resin is coated with the glass layer and a method for manufacturing a separator including the step of coating a fine framework of polyolefin resin with the glass layer by applying a precursor containing viscous liquid product which contains only polysilazane compound or a mixture of viscous liquid product which contains only polysilazane compound with polycarbosilazane compound to the polyolefin resin and placing the precursor applied polyoleline resin in a water bath to dry.

Claims (4)

1. A method for manufacturing a separator comprising:

applying a precursor without solvent, the precursor containing viscous liquid product which contains only polysilazane compound or a mixture of viscous liquid product which contains only polysilazane compound with polycarbosilazane compound to a polyolefin resin;

placing the precursor applied polyolefin resin in a water bath to form a resulting product; and

drying the resulting product.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2018
From: TOHOKU MURATA MANUFACTURING CO., LTD
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 045103/0835 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2018
From: SONY CORPORATION
To: TOHOKU MURATA MANUFACTURING CO.,LTD
Reel/Frame 045104/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 17, 2008
From: KAJITA, ATSUSHI; TESHIMA, YUKAKO; IMOTO, HIROSHI; TANAKA, TAKEHIKO; HORIUCHI, HIROSHI
To: SONY CORPORATION
Reel/Frame 021252/0524 →