Electrochemical energy storage devices
First Claim
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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 in a charged state, said first electrode is an anode and said second electrode is a cathode, and wherein said liquid electrolyte is capable of conducting ions of said first material;
an intermetallic layer disposed at an interface between said second electrode and said electrolyte, wherein said intermetallic layer is formed of said first and second materials; and
a crucible or coating surrounding said first electrode, said second electrode, said electrolyte and said intermetallic layer, wherein said crucible or coating prevents shorting between said second electrode and said first electrode and wherein said crucible or coating is electrically conductive.
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Abstract
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.
394 Citations
17 Claims
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1. An energy storage device, comprising:
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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 in a charged state, said first electrode is an anode and said second electrode is a cathode, and wherein said liquid electrolyte is capable of conducting ions of said first material; an intermetallic layer disposed at an interface between said second electrode and said electrolyte, wherein said intermetallic layer is formed of said first and second materials; and a crucible or coating surrounding said first electrode, said second electrode, said electrolyte and said intermetallic layer, wherein said crucible or coating prevents shorting between said second electrode and said first electrode and wherein said crucible or coating is electrically conductive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification