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Title: Semi-solid electrodes having high rate capability

Abstract

Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 .mu.m to about 2,000 .mu.m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm.sup.2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
24M Technologies, Inc. Cambridge, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1255928
Patent Number(s):
9362583
Assignee:
24M Technologies, Inc. (Cambridge, MA)
Patent Classifications (CPCs):
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AR0000102
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 May 22
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Chiang, Yet-Ming, Duduta, Mihai, Holman, Richard, Limthongkul, Pimpa, and Tan, Taison. Semi-solid electrodes having high rate capability. United States: N. p., 2016. Web.
Chiang, Yet-Ming, Duduta, Mihai, Holman, Richard, Limthongkul, Pimpa, & Tan, Taison. Semi-solid electrodes having high rate capability. United States.
Chiang, Yet-Ming, Duduta, Mihai, Holman, Richard, Limthongkul, Pimpa, and Tan, Taison. Tue . "Semi-solid electrodes having high rate capability". United States. https://www.osti.gov/servlets/purl/1255928.
@article{osti_1255928,
title = {Semi-solid electrodes having high rate capability},
author = {Chiang, Yet-Ming and Duduta, Mihai and Holman, Richard and Limthongkul, Pimpa and Tan, Taison},
abstractNote = {Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 .mu.m to about 2,000 .mu.m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm.sup.2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {6}
}

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