Pressure relief mechanisms can provide an outlet for cathode pressure buildup during battery operation. Mechanical cathode modifications can control cathode interfaces during battery operation. Pressure relief mechanisms and mechanical modifications can be utilized to improve performance, longevity
Pressure relief mechanisms can provide an outlet for cathode pressure buildup during battery operation. Mechanical cathode modifications can control cathode interfaces during battery operation. Pressure relief mechanisms and mechanical modifications can be utilized to improve performance, longevity and/or to prevent failure of batteries, such as during cycling of liquid metal batteries.
대표청구항▼
1. An energy storage device, comprising: a first electrode comprising a first material, a second electrode comprising a second material, and a liquid electrolyte between said first and second electrodes, wherein said liquid electrolyte is capable of conducting ions from said first material at an ope
1. An energy storage device, comprising: a first electrode comprising a first material, a second electrode comprising a second material, and a liquid electrolyte between said first and second electrodes, wherein said liquid electrolyte is capable of conducting ions from said first material at an operating temperature of said energy storage device, wherein upon discharge of said energy storage device said first and second materials react to form an intermetallic layer at an interface between said second electrode and said electrolyte, which intermetallic layer is solid or semi-solid at said operating temperature;a sheath or liner adjacent to said second electrode, wherein said sheath or liner is non-wetting with respect to said second material; andwherein said sheath or liner comprises graphite. 2. The energy storage device of claim 1, wherein said first material comprises an alkali metal, said second material comprises one or more of a metal, a metalloid or a non-metal. 3. The energy storage device of claim 2, wherein said second material includes a metalloid, and wherein said intermetallic layer includes said metalloid. 4. The energy storage device of claim 3, wherein said first material includes lithium, said second material includes antimony, and said intermetallic layer includes lithium antimonide. 5. The energy storage device of claim 1, wherein said first electrode and/or said second electrode is liquid. 6. The energy storage device of claim 1, wherein said intermetallic layer comprises an alkali metal. 7. The energy storage device of claim 1, wherein said intermetallic layer comprises said first material and said second material. 8. The energy storage device of claim 1, wherein said intermetallic layer is a solid. 9. The energy storage device of claim 1, wherein said intermetallic layer contacts said sheath or liner. 10. The energy storage device of claim 1, further comprising a housing comprising said first electrode, second electrode and liquid electrolyte, wherein said sheath or liner lines is an interior of said housing. 11. The energy storage device of claim 10, wherein said sheath or liner is bonded to an inner surface of said housing. 12. The energy storage device of claim 10, wherein said energy storage device is configured such that, during operation, said second material does not flow between said sheath or liner and said housing. 13. The energy storage device of claim 10, wherein said housing comprises a housing wall and a housing bottom, and wherein said sheath or liner is on said housing wall and said housing bottom. 14. The energy storage device of claim 1, further comprising a housing comprising said first electrode, wherein said housing comprises a housing wall, and wherein said sheath or liner is on said housing wall. 15. The energy storage device of claim 1, wherein said sheath or liner is electrically conductive. 16. The energy storage device of claim 1, wherein said second material comprises zinc, cadmium, mercury, aluminum, gallium, indium, silicon, germanium, tin, lead, arsenic, bismuth, antimony, tellurium, selenium, or any combination thereof. 17. The energy storage device of claim 1, wherein said sheath or liner prevents shorting between said second electrode and said first electrode. 18. The energy storage device of claim 1, wherein said sheath or liner is adjacent to said first electrode and said second electrode. 19. The energy storage device of claim 1, wherein said sheath or liner is a liner. 20. The energy storage device of claim 1, wherein said sheath or liner is a sheath.
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