Back to results
US 2016/0254513 A1Published application
Laminated Separator, Polyolefin Microporous Membrane, and Separator for Electricity Storage Device
AssigneeAsahi Kasei E-Materials Corporation
InventorsMasahiro Ohashi, Keitaro Ameyama, Yuzuru Sakakibara
Life of this patent
Estimating the term…
Abstract
Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less.
Claims14
-15. (canceled)
A laminated separator comprising:
- a first polyolefin microporous layer and
- a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer,
- wherein the laminated separator comprises a two-type three-layer structure comprising the first polyolefin microporous layers as surface layers and the second polyolefin microporous layer as an intermediate layer,
- the first polyolefin microporous layer comprises an inorganic filler (i) having a primary particle size of 10 nm or more and 80 nm or less and (ii) comprising silica and/or alumina,
- the first polyolefin microporous layer comprises a first polyolefin resin comprising polypropylene, and
- a thickness of the first polyolefin microporous layer is 3 μm or less.
3 more elements
Dependencies are inferred from the claim text.