Vapor-grown and graphitized carbon fibers process for preparing

Details Vapor-grown and graphitized carbon fibers process for preparing Vapor-grown and graphitized carbon fibers process for preparing

1995-02-17

1996-04-30

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

H01M 460

Patent

active

055123937

ABSTRACT:
A secondary battery with a negative electrode having an anode active material, a positive electrode, and a non-aqueous electrolyte, has its anode active material provided with vapor-grown and graphitized carbon fibers having a mean fiber diameter of 5 .mu.m or smaller, a mean length of 90 .mu.m or shorter, a mean aspect ratio of from 1 to 18, and a spin density of 8.times.10.sup.18 spins/g or less, when measured by the electron spin resonance absorption method.

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American Institute of Physics, "Electron-spin-resonance studies of vapor-grown carbon fibers", Journal of Applied Physics, vol. 62, No. 9, pp. 3947-3952, Nov. 1, 1987.

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