Patent ID: 9325016
Filing Date: 2016-04-26
CPC Classification: B32B,C04B,D21H,H01M,Y02E,Y02P

Claim Text:
1. A porous electrode substrate, comprising: a first structure comprising a plurality of first short carbon fibers, the first short carbon fibers bonded to each other by carbon such that the first structure is formed; and a second structure comprising a plurality of second short carbon fibers, the second short carbon fibers bonded to each other by carbon such that the second structure is formed, wherein an average of angles formed by each of the first short carbon fibers and a surface of the first structure is 3° or more, or a maximum angle formed by each of the first short carbon fibers and the surface of the first structure is 10° or more, and an average of angles formed by each of the second short carbon fibers and a surface of the second structure is less than 3° , and a maximum angle formed by each of the second short carbon fibers and the surface of the second structure is less than 10°.