US 11,757,083 B2
Laminate structure, production method thereof, and roll press device
Makiko Oikawa, Kyoto (JP); Kazuhiko Morizawa, Kyoto (JP); and Hiroshi Kubota, Kanagawa (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed by MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed on Feb. 19, 2020, as Appl. No. 16/795,067.
Application 16/795,067 is a continuation of application No. PCT/JP2018/030569, filed on Aug. 17, 2018.
Claims priority of application No. 2017-160198 (JP), filed on Aug. 23, 2017.
Prior Publication US 2020/0243835 A1, Jul. 30, 2020
Int. Cl. H01M 4/00 (2006.01); H01M 10/00 (2006.01); B29C 43/00 (2006.01); B30B 3/00 (2006.01); B32B 15/00 (2006.01); H01M 4/04 (2006.01); B30B 3/04 (2006.01); H01M 4/139 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 4/0435 (2013.01) [B29C 43/00 (2013.01); B30B 3/04 (2013.01); B32B 15/00 (2013.01); H01M 4/139 (2013.01); H01M 10/0525 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A laminate structure comprising:
a substrate including a first surface and a second surface opposite to the first surface;
a first layer provided on the first surface of the substrate; and
a second layer provided on the second surface of the substrate,
wherein
the first layer includes a first end portion and a second end portion along a width direction of the substrate,
the second layer includes a third end portion and a fourth end portion along the width direction of the substrate,
the first end portion is opposite to the third end portion,
the second end portion is opposite to the fourth end portion,
the third end portion is positioned closer to a central portion side of the substrate than the first end portion, and
an end surface of the third end portion includes an inclined surface or a stair shape or a combined shape of the inclined surface and the stair shape,
wherein V10 is an average volume density value of a region with a length of 1 mm in the first layer from one portion which is 2 mm apart outward from a portion of the first layer which is opposite to the third end portion to another portion which is 3 mm apart from the portion, and V11 is an average volume density value of a region in the first layer which is sufficiently apart inward from the portion of the first layer which is opposite to the third end portion, and wherein V10/V11≥0.94 is satisfied.