Electrochemistry and in-situ x-ray diffraction of InSb in lithium batteries.

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · Electrochem. Commun.

DOI:https://doi.org/10.1016/S1388-2481(00)00087-4· OSTI ID:942957

Johnson, C S; Vaughey, J T; Thackeray, M M; Sarakonsri, T; Hackney, S A; Fransson, L; Edstrom, K; Thomas, J O

The electrochemical reactions of lithium with the intermetallic compound, InSb, were studied in lithium coin cells using laminate electrodes fabricated from either single-crystal InSb wafers or ball-milled samples. In-situ X-ray diffraction data show that the InSb zinc-blende framework is unstable to extensive reaction with lithium; In is extruded from a fixed Sb lattice during 'discharge' and is partially incorporated back into the lattice during 'charge'. Despite the loss of some In from the structure, the indium antimonide electrode provides capacities in excess of 300 mAh/g with excellent reversibility. Cyclic voltammetry was used to study the electrochemical processes in greater detail. Lithiated indium products are formed below {approx}600 mV versus Li. The electrode can be discharged at high rates, delivering 150 mAh/g at 3.6 mA/cm{sub 2} between 1.2 and 0.2 V versus Li. These data hold exciting prospects for the development of intermetallic insertion electrodes for practical room-temperature Li-ion cells.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: EE; SC; FOR
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942957
• Report Number(s): ANL/CMT/JA-36243
• Journal Information: Electrochem. Commun., Journal Name: Electrochem. Commun. Journal Issue: 8 ; Aug. 2000 Vol. 2; ISSN 1388-2481
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
ELECTROCHEMISTRY
ELECTRODES
INDIUM
INDIUM ANTIMONIDES
INTERMETALLIC COMPOUNDS
LITHIUM
X-RAY DIFFRACTION