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Title: Semi-solid electrodes having high rate capability

Patent ·
OSTI ID:1255928
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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.

Research Organization:
24M Technologies, Inc. Cambridge, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000102
Assignee:
24M Technologies, Inc. (Cambridge, MA)
Patent Number(s):
9,362,583
OSTI ID:
1255928
Resource Relation:
Patent File Date: 2015 May 22
Country of Publication:
United States
Language:
English

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