Patent ID: 9123954
Filing Date: 2015-09-01
Classification: H01G,H01M,Y02E,Y02P

Abstract:
1. An electrical energy storage device, comprising: a silicon substrate, which has opposing first and second surfaces and is formed so as to define a multiplicity of micro-containers having porous silicon walls, which are configured to serve as an anode layer, the multiplicity of the micro-containers comprising first and second sets of the micro-containers, which are respectively formed in the opposing, first and second surfaces of the substrate in an interlaced pattern, in which the micro-containers in the first set are interdigitated with neighboring micro-containers in the second set; a cathode layer overlying and extending into only the first set of the micro-containers; and a separator layer extending into only the first set of the micro-containers, intermediate the anode layer and the cathode layer.