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US 11,695,105 B2Granted
Rechargeable battery
AssigneeSES Holdings Pte. Ltd.
InventorsYoungGyu Nam, SangOh Jung, Qichao Hu, Yury Matulevich, Mackenzie King, Yongkyu Son, Jeff Francois, Jacqueline Hong, Arthur R. Nigro, Jr.
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Abstract
Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.
Claims17
A battery core pack, comprising:
- a plurality of cells forming a cell stack, each cell comprising at least one anode and at least one cathode, wherein metal ions are stripped from the anode during discharge and re-plated on the anode during charge;
- and
- a containment structure at least partially surrounding the cell stack, wherein said containment structure imparts a substantially uniform surface pressure at certain value to said cell stack;
- wherein the substantially uniform surface pressure is at least about 50 psi;
- and
- wherein said anode comprises lithium metal.
3 more elements
A battery pack, comprising:
- a plurality of cells forming a cell stack, each cell comprising at least one anode and at least one cathode wherein metal ions are stripped from the anode during discharge and re-plated on the anode during charge, wherein said cell stack comprises four cells and the at least one anode comprises lithium metal;
- a housing containing the cell stack with a pre-loaded surface pressure of at least about 50 psi, wherein said housing has sufficient stiffness to maintain said surface pressure through plural charge and discharge cycles of said cell stack;
- a cooling pad formed of a high conductivity material disposed between cells of said cell stack;
- and
- at least two compliant pads, wherein each compliant pad is disposed between the cells, said compliant pads distributing the cell expansion pressure evenly during charging and pushing back to the cell during discharging.
2 more elements
A battery core pack, comprising:
- a plurality of cells forming a cell stack, each cell comprising at least one lithium metal anode and at least one cathode, wherein lithium ions are stripped from the anode during discharge and re-plated on the anode during charge, said cells each further comprising—
- a separator disposed between the at least one anode and at least one cathode, and
- a non-aqueous liquid electrolyte selected to have electrochemical stability at a potential of the cathode material versus lithium;
- and
- a containment structure at least partially surrounding the cell stack, wherein said containment structure imparts a substantially uniform surface pressure of at least about 50 psi across all cells of said cell stack.
2 more elements
Dependencies are inferred from the claim text.