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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 μm to about 2,000 μm, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 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:
1600310
Patent Number(s):
10,483,582
Application Number:
15/792,179
Assignee:
24M Technologies, Inc. (Cambridge, MA)
DOE Contract Number:  
AR0000102
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/24/2017
Country of Publication:
United States
Language:
English
Subject:
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., 2019. 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/1600310.
@article{osti_1600310,
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 μm to about 2,000 μm, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 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 = {2019},
month = {11}
}

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