# US 12,763,343 B2 · Exothermic-based composite structures and thermal batteries having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,763,343 B2 - Document ID: US12763343B2 - Status: Granted - Kind: B2 - Application number: 17/992,387 - Filed: 2022-11-22 - Published: 2024-04-11 - Granted: 2026-10-13 - Earliest claimed: 2019-11-25 - Assignees: Omnitek Partners LLC - Applicants: Omnitek Partners LLC - Inventors: Jahangir S Rastegar - Web page: https://patentgrep.com/patent/US12763343B2 ## CPC - H01M 6/5038: {Heating or cooling of cells or batteries} - H01M 6/36: containing electrolyte and made operational by physical means, e.g. thermal cells - H01M 10/615: Heating or keeping warm - H01M 10/658: by thermal insulation or shielding - H01M 10/659: by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition - H01M 50/112: Monobloc comprising multiple compartments - H01M 50/138: adapted for specific cells, e.g. electrochemical cells operating at high temperature - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY ## Abstract An energy storage system including: an energy storage device including a battery core and outer casing; and a heating device at least partially surrounding an outer periphery of the battery core. The heating device includes: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein. Where the first compartment has a first surface that contacts at least a portion of a second surface of the second compartment. ## Claims ### Claim 1 An energy storage system comprising: an energy storage device comprising a battery core and outer casing; and a heating device at least partially surrounding an outer periphery of the battery core, the heating device comprising: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein; wherein the first compartment having a first surface that contacts at least a portion of a second surface of the second compartment; wherein: the first compartment being formed of a first material having a first rigidity; the first compartment being compressed to deform a first cross-section shape of the first compartment into a second cross-section shape; the second compartment formed of a second material having a second rigidity, the second rigidity being greater than the first rigidity; and wherein an amount of contact between the first surface and the second surface is greater for the second cross-section shape than the first cross-section shape. ### Claim 2 (depends on 1) The energy storage device of claim 1, wherein the heating device being arranged between the battery core and the outer casing. ### Claim 3 (depends on 1) The energy storage device of claim 1, further comprising a metal foil arranged between the heating device and the battery core. ### Claim 4 (depends on 1) The energy storage device of claim 1, further comprising thermal insulation arranged between one or more of the heating device and the battery core and the heating device and the outer casing. ### Claim 5 (depends on 1) The energy storage device of claim 1, wherein the energy storage device is a thermal battery. ### Claim 6 (depends on 1) The energy storage device of claim 1, wherein one or more of the first compartment and the second compartment are configured as an elongated tube. ### Claim 7 An energy storage system comprising: an energy storage device comprising a battery core and outer casing; and a heating device at least partially surrounding an outer periphery of the battery core, the heating device comprising: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein; wherein the first compartment having a first surface that contacts at least a portion of a second surface of the second compartment; wherein: the first compartment comprises a plurality of first compartments each having the heating pyrotechnic material disposed therein, each of the plurality of first compartments being configured as a first elongated tube; the second compartment comprises a plurality of second compartments each having the phase changing material disposed therein, each of the plurality of second compartments being configured as a second elongated tube; and the first elongated tubes and the second elongated tubes being arranged to at least partially surround the outer periphery of the battery core. ### Claim 8 (depends on 7) The energy storage device of claim 7, wherein the first elongated tubes and the second elongated tubes are arranged in a crisscross pattern. ### Claim 9 An energy storage system comprising: an energy storage device comprising a battery core and outer casing; and a heating device at least partially surrounding an outer periphery of the battery core, the heating device comprising: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein; wherein the first compartment having a first surface that contacts at least a portion of a second surface of the second compartment; further comprising a third compartment having the heating pyrotechnic material disposed therein, the third compartment having a third surface that contacts at least a portion of the second surface of the second compartment. ### Claim 10 An energy storage system comprising: an energy storage device comprising a battery core and outer casing; and a heating device at least partially surrounding an outer periphery of the battery core, the heating device comprising: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein; wherein the first compartment having a first surface that contacts at least a portion of a second surface of the second compartment; further comprising a third compartment having the phase changing material disposed therein, the third compartment having a third surface that contacts at least a portion of the second surface of the second compartment. ### Claim 11 A heating device for use with an energy storage device, the heating device comprising: a first compartment having a heating pyrotechnic material disposed therein; and a second compartment having a phase changing material disposed therein; wherein the first compartment having a first surface that contacts at least a portion of a second surface of the second compartment; the first compartment being formed of a first material having a first rigidity; the first compartment being compressed to deform a first cross-section shape of the first compartment into a second cross-section shape; the second compartment formed of a second material having a second rigidity, the second rigidity being greater than the first rigidity; and an amount of contact between the first surface and the second surface is greater for the second cross-section shape than the first cross-section shape. ### Claim 12 (depends on 11) The heating device of claim 11, wherein one or more of the first compartment and the second compartment are configured as an elongated tube. ### Claim 13 (depends on 11) The heating device of claim 11, wherein: the first compartment comprises a plurality of first compartments each having the heating pyrotechnic material disposed therein, each of the plurality of first compartments being configured as a first elongated tube; and the second compartment comprises a plurality of second compartments each having the phase changing material disposed therein, each of the plurality of second compartments being configured as a second elongated tube. ### Claim 14 (depends on 13) The heating device of claim 13, wherein the first elongated tubes and the second elongated tubes are arranged in a crisscross pattern. ### Claim 15 (depends on 11) The heating device of claim 11, further comprising a third compartment having the heating pyrotechnic material disposed therein, the third compartment having a third surface that contacts at least a portion of the second surface of the second compartment. ### Claim 16 (depends on 11) The heating device of claim 11, further comprising a third compartment having the phase changing material disposed therein, the third compartment having a third surface that contacts at least a portion of the second surface of the second compartment.