Patent ID: 9531031
Filing Date: 2016-12-27
CPC Classification: H01M,Y02E,Y02P

Claim Text:
1. An article containing electrochemical cells comprising: a) one or more stacks of battery plates comprising one or more bipolar plates comprising a substrate having an anode on one surface and a cathode on the opposite surface, a monopolar plate having a cathode deposited on one surface and a monopolar plate having an anode deposited on one surface, wherein the plates are arranged such that the surfaces of the plates having a cathode deposited on the surface face the surface of another plate having an anode deposited on the surface, and the monopolar plates are located at opposite ends of each stack of battery plates; b) located between each plate is a separator and a liquid electrolyte wherein the separator and the plates form sealed electrochemical cells; and c) the one or more stacks of battery plates having a plurality of channels passing transversely though the portion of the plates having the cathode and/or the anode deposited thereon and the liquid electrolyte and the separators of the electrochemical cells; wherein the plurality of channels are formed by a series of matched inserts and/or bosses in the battery plates and separators about the periphery of the channels which prevent the leakage of the liquid electrolyte into the channels, and posts located in one or more of the channels having on each end an overlapping portion that covers the channel and a sealing surface on the outside of the monopolar plates adjacent to the holes for the transverse channels and applies pressure on the sealing surfaces of the monopolar plates wherein the pressure is sufficient to withstand pressures created during assembly and operation of electrochemical cells created by the stacks of battery plates, wherein the posts are fabricated from a polymeric material; wherein the posts are molded in place and are bonded to the inside of the inserts and/or bosses that form the transverse channels.