# US 10,873,111 B2 · Battery with compression and prevention of thermal runaway propagation features > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,111 B2 - Document ID: US10873111B2 - Status: Granted - Kind: B2 - Application number: 15/286,952 - Filed: 2016-10-06 - Published: 2018-02-15 - Granted: 2020-12-22 - Earliest claimed: 2016-08-09 - Assignees: Wisk Aero LLC - Applicants: Wisk Aero LLC - Inventors: John Melack; Thomas P. Muniz; Nihal Murthy - Web page: https://patentgrep.com/patent/US10873111B2 ## CPC - H01M 10/617: for achieving uniformity or desired distribution of temperature - C09D 7/00: Features of coating compositions, not provided for in group C09D5/00 (driers C09F9/00); Processes for incorporating ingredients in coating compositions - H01M 10/0413: {Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes} - H01M 10/0481: {Compression means other than compression means for stacks of electrodes and separators} - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/647: Prismatic or flat cells, e.g. pouch cells - H01M 10/6551: Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings - H01M 10/6554: Rods or plates - H01M 10/658: by thermal insulation or shielding - H01M 50/211: adapted for pouch cells - H01M 50/224: Metals - H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) - H01M 50/271: Lids or covers for the racks or secondary casings - H01M 50/289: characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) - H01M 50/375: Vent means sensitive to or responsive to temperature - H01M 50/383: Flame arresting or ignition-preventing means - H01M 50/502: Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing - H01M 50/105: Pouches or flexible bags - H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB] - H01M 50/293: characterised by the material - H01M 50/296: characterised by terminals of battery packs (terminals of batteries H01M50/543) - H01M 2200/10: Temperature sensitive devices - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A battery includes a metal can having a bottom, a top opening, and four sides. The battery also includes a plurality of cells stacked inside the metal can, wherein at least two opposing sides of the four sides of the metal can are biased inward against the plurality of cells to provide compression. ## Claims ### Claim 1 A battery, comprising: a metal can having a bottom, a top opening, and four sides; and a plurality of cells stacked inside the metal can, wherein: at least two opposing sides of the four sides of the metal can are biased inward against the plurality of cells to provide compression; the plurality of cells are stacked with a plurality of insulation layers and a plurality of double-sided fins; a double-sided fin of the plurality of double-sided fins is located between a cell of the plurality of cells and an insulation layer of the plurality of insulation layers; intumescent paint is applied to one side of the double-sided fin, the one side facing the insulation layer; and the intumescent paint is not applied to another side of the double-sided fin facing the cell. ### Claim 2 (depends on 1) The battery of claim 1, wherein the plurality of cells includes a pouch cell. ### Claim 3 (depends on 1) The battery of claim 1, wherein the metal can is manufactured using one or more of the following: impact extrusion or deep drawing. ### Claim 4 (depends on 1) The battery of claim 1, wherein the metal can includes 1000 series aluminum. ### Claim 5 (depends on 1) The battery of claim 1, wherein the metal can includes a flanged top. ### Claim 6 (depends on 1) The battery of claim 1, wherein: the plurality of insulation layers includes aerogel; and the plurality of cells includes a pouch cell. ### Claim 7 (depends on 1) The battery of claim 1 further comprising: a lid having an underside; and a plurality of tabs, wherein: the plurality of cells are electrically connected via the plurality of tabs; and the plurality of tabs are prevented from pulling down on the underside of the lid by the inward biasing of the metal can. ### Claim 8 (depends on 1) The battery of claim 1, wherein: one of the sides of the metal can has a first vent hole and a second vent hole, wherein the first vent hole is on a first side of a vertical axis which runs through said side of the metal can and the second vent hole is on a second side of the vertical axis; and if the first vent hole were rotated about the vertical axis to produce a rotated first vent hole, the rotated first vent hole would not overlap with the second vent hole. ### Claim 9 (depends on 1) The battery of claim 1, wherein: one of the sides of the metal can has a first vent hole and a second vent hole, wherein the first vent hole is on a first side of a vertical axis which runs through said side of the metal can and the second vent hole is on a second side of the vertical axis; if the first vent hole were rotated about the vertical axis to produce a rotated first vent hole, the rotated first vent hole would not overlap with the second vent hole; and the first vent hole and the second vent hole are covered by tape. ### Claim 10 (depends on 1) The battery of claim 1, wherein: a first side of a first metal can has a first vent hole; a second side of a second metal can has a second vent hole, wherein the bottom of the first vent hole is higher than the top of the second vent hole; and if the first metal can and the second metal can were placed next to each other with the first side facing the second side, the first vent hole and the second vent hole would not overlap. ### Claim 11 (depends on 1) The battery of claim 1, wherein: a first side of a first metal can has a first vent hole; a second side of a second metal can has a second vent hole, wherein the bottom of the first vent hole is higher than the top of the second vent hole; if the first metal can and the second metal can were placed next to each other with the first side facing the second side, the first vent hole and the second vent would not overlap; and the first vent hole and the second vent hole are covered by tape. ### Claim 12 (depends on 1) The battery of claim 1, wherein intumescent paint is applied to one or more of the following: an underside of a lid, insulation, or a side of one of the plurality of cells adjacent to insulation. ### Claim 13 (depends on 1) The battery of claim 1, wherein the double-sided fin has one bent portion at each end of the double-sided fin. ### Claim 14 (depends on 1) The battery of claim 1, wherein the double-sided fin has one bent portion at each end of the double-sided fin, the one bent portion acting like a spring. ### Claim 15 (depends on 1) The battery of claim 1, wherein: a side of the metal can has a vent hole; the vent hole is covered with thermally conductive tape; and the thermally conductive tape permits cooling during forward flight in aircraft applications.