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Title: Self-healing liquid/solid state battery

A battery system that exchanges energy with an external device is provided. The battery system includes a positive electrode having a first metal or alloy, a negative electrode having a second metal or alloy, and an electrolyte including a salt of the second metal or alloy. The positive electrode, the negative electrode, and the electrolyte are in a liquid phase at an operating temperature during at least one portion of operation. The positive electrode is entirely in a liquid phase in one charged state and includes a solid phase in another charged state. The solid phase of the positive electrode includes a solid intermetallic formed by the first and the second metals or alloys. Methods of storing electrical energy from an external circuit using such a battery system are also provided.
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Issue Date:
OSTI Identifier:
Massachusetts Institute of Technology (Cambridge, MA); Total S.A. (Courbevoie, FR) Total Energies Nouvelles Activites USA; (Coubervoie, FR) ARPA-E
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2014 Oct 29
Research Org:
Massachusetts Institute of Technology, Cambridge, MA (United States); Total S.A. (Courbevoie, FR), Total Energies Nouvelles Activites USA (Coubervoie, FR)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

Calcium–bismuth electrodes for large-scale energy storage (liquid metal batteries)
journal, November 2013

Self-healing Li–Bi liquid metal battery for grid-scale energy storage
journal, February 2015