A rechargeable lithium battery employing iron Chevrel phase compound (Fe1.25Mo6S7.8 as the cathode

✍ Scribed by M. Wakihara; T. Uchida; K. Suzuki; M. Taniguchi

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 283 KB
• Volume: 34
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(89)87121-x

✦ Synopsis

Powder of iron Chevrel phase compound (Fe,,,,Mo,S,.s) was used as the cathode for lithium secondary battery. 1 M LiCIO, in PC was used as an electrolyte. The discharge and dischargecharge cycling properties were measured galvanostatically at a constant current density from 7.5 RA cm-s to 0.7 mA cm-s. A theoretical energy density of 217 W h kg-' (only the weight of the cathode and incorporated lithium was considered for the estimation) was obtained at the first discharge when C.D. was fixed at 0.3 mA cm-* (cut-off 1.0 V). A good rechargeability of more than 1100 times was observed in the case of relatively shallow discharge-charge experiment. Lattice expansion with intercalation of lithium ions in the iron Chevrel phase compound was less than that in copper Chevrel phase compounds which had been investigated previously.