Patent Number: 6,309,775

Title: Prismatic electrochemical cell

Abstract: A sealed, prismatic electrochemical cell has an electrode plate comprising a porous structure with a maximum linear dimension of the porous structure in the principle direction of ion flow of at least 20 percent of the maximum linear dimension of the housing cavity in the principle direction of ion flow. The cell can produce good current density while having a high capacity. The electrode construction can result in a low diffusion polarization despite the thickness of the electrode. The overall cell can be economically manufactured, and has a low percentage of its internal volume occupied by inactive materials. Electrode plaque constructions and active material compounds are also disclosed.

Inventors: Mank; Richard M. (Weymouth, MA)

Assignee: Duracell Inc.

International Classification: H01M 10/24 (20060101); H01M 4/52 (20060101); H01M 4/32 (20060101); H01M 2/00 (20060101); H01M 10/30 (20060101); H01M 002/00 ()

Expiration Date: 10/30/2018