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Electrochemical performance of natural Brazilian graphite as anode material for lithium-ion rechargeable cells

1995; Elsevier BV; Volume: 55; Issue: 2 Linguagem: Inglês

10.1016/0378-7753(95)02192-j

1873-2755

V. Manev, I. Naidenov, B. Puresheva, P. Zlatilova, G. Pistoia,

Recycling and Waste Management Techniques

The properties of natural Brazilian graphite have been investigated in a three-electrode laboratory button cell containing 1 M LiPF6 dissolved in ethylene carbonate-dimethyl carbonate (EC-DMC) as the electrolyte. The charge/discharge behaviour of the graphite is greatly affected by the preliminary treatments and techniques used for the preparation of the electrode. By optimizing these procedures, a specific capacity very close to the theoretical value can obtained. When using LiPF6/EC-DMC electrolyte, a high charge/discharge coulombic efficiency is observed.