Alkali-metal batteries with a dendrite-free anode interfacing an organic liquid electrolyte
A rechargeable battery cell has an organic-liquid electrolyte contacting a dendrite free alkali-metal anode. The alkali-metal anode may be a liquid at the operating temperature that is immobilized by absorption into a porous membrane. The alkali-metal anode may be a solid that wets a porous-membrane separator, where the contact between the solid alkali-metal anode and the liquid electrolyte is at micropores or nanopores in the porous-membrane separator. The use of a dendrite-free solid lithium cell was demonstrated in a symmetric cell with a porous cellulose-based separator membrane. A K+-ion rechargeable cell was demonstrated with a liquid K—Na alloy anode immobilized in a porous carbon membrane using an organic-liquid electrolyte with a Celgard® or glass-fiber separator.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AR0000297; SC0005397
- Assignee:
- Board of Regents, The University of Texas System (Austin, TX)
- Patent Number(s):
- 10,236,513
- Application Number:
- 15/452,337
- OSTI ID:
- 1568092
- Country of Publication:
- United States
- Language:
- English
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