Title: Self-healing liquid/solid state battery

Abstract

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.

Inventors:

Burke, Paul J.; Chung, Brice H.V.; Phadke, Satyajit R.; Ning, Xiaohui; Sadoway, Donald R.

Issue Date:

2018-02-27

Research Org.:

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Total S.A. (Courbevoie, FR), Total Energies Nouvelles Activites USA (Coubervoie, FR)

Sponsoring Org.:

USDOE

OSTI Identifier:

1423297

Patent Number(s):

9905888

Application Number:

14/526,897

Assignee:

Massachusetts Institute of Technology (Cambridge, MA); Total S.A. (Courbevoie, FR) Total Energies Nouvelles Activites USA; (Coubervoie, FR)

Patent Classifications (CPCs):

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/052 - Li-accumulators
H01M10/39 - working at high temperature
H01M10/399 - {Cells with molten salts}
H01M10/44 - Methods for charging or discharging
H01M2004/021 - {Physical characteristics, e.g. porosity, surface area}
H01M4/134 - Electrodes based on metals, Si or alloys
H01M4/38 - of elements or alloys
H01M4/405 - {Alloys based on lithium}

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

H02J7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/10 - Energy storage

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DOE Contract Number:  

AR0000047

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Oct 29

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE