Carbon material, carbonaceous material for battery electrode, and battery

Carbon material, carbonaceous material for battery electrode, and battery

  • CN 104,039,697 A
  • Filed: 06/27/2013
  • Published: 09/10/2014
  • Est. Priority Date: 06/29/2012
  • Status: Active Application
First Claim
Patent Images

1. a flakey carbon material, its in Raman spectrum spectrogram, measure when measure the particle end face of flakey carbon material with micro Raman spectra tester in 1300~

  • 1400cm -1the peak area (I at peak of scope d) and in 1580~

    1620cm -1the peak area (I at peak of scope g) ratio I g/ I d(G value) is more than 5.2 and below 100, the average spacing (d002) of (002) face based on X-ray diffraction method is the flakey carbon material below 0.337nm, in the rectangular field of view of the 480 μ

    m ×

    540 μ

    m in the formed body cross section that formed by described carbon material, utilize polarized light microscope observing optical texture, start area to accumulate from the little tissue of area, and the area of optical texture when this accumulation area is reached to 60% area of whole optical texture areas is made as SOP, start from the little tissue of long-width ratio the number that array is knitted, and the long-width ratio of the 60%th tissue organizing overall number is made as to AROP, when the median size of the volume reference based on laser diffractometry is made as to D50, there is following relation, 1.5≤

    AROP≤

    6 and0.2×

    D50≦

    (SOP×

    AROP) 1/2



    D50。

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