Large format electrochemical energy storage device housing and module

摘要

An assembly includes non-load bearing housings, each housing including several cavities. Each cavity includes a stack of freely stacked electrochemical storage cells in the housings. Each electrochemical storage cell includes an anode electrode, a cathode electrode, and a separator located between the anode electrode and the cathode electrode. The assembly is configured such that pressure applied to the assembly is born by the freely stacked electrochemical storage cells.

主权项

1. An energy storage assembly, comprising:
a plurality of electrochemical device units stacked one above another between opposing pressure plates; wherein each of the plurality of electrochemical device units comprises a housing and a lid forming a plurality of cell cavities with each of the plurality of cell cavities filled with a plurality of electrochemical storage cells, wherein each of the plurality of electrochemical storage cells comprises:
an anode electrode;a cathode electrode; anda separator located between the anode electrode and the cathode electrode; and wherein each of the housing and the lid comprises non-load bearing opposing external surfaces of each cell cavity; and
a binding member interconnecting the opposing pressure plates; wherein when the binding member is placed in a condition of tension, the non-load bearing opposing external surfaces of each cell cavity impart a pressure to each the plurality of electrochemical storage cells such that the storage cells bear a load of the pressure; wherein the anode and cathode electrodes of the electrochemical storage cells bear at least 90 percent of the loads applied to the energy storage assembly.