Patent ID: 8900754

Claim:
An electrode for a lithium ion secondary battery comprising a carbon material which satisfies the following conditions (1), (2) and (3): (1) carbon atoms, nitrogen atoms and hydrogen atoms contained in said electrode satisfy the following expressions (I) and (II): ( N N /N c )>0.87×( N H /N c )−0.06 (I) ( N N /N c )>0.01(II) wherein N N , N c and N H represent the number of nitrogen atoms, carbon atoms and hydrogen atoms, respectively; (2) X-ray diffraction patterns obtained by using a CuKαray as an X-ray source have a peak at a position corresponding to a diffraction angle ( 2 θ) of 23.5 to 25.5° ; and (3) a spectrogram by laser Raman spectrometry with a wave number of 1000 to 2000cm −1 has a peak P 1 between 1355 and 1385 cm −1 and a peak P 2 between 1550 and 1620 cm −1 ; a lowest point M having a smallest height L from the baseline between the peak P 1 and the peak P 2 ; and a ratio (L/H 1 ) of said height L to a height H 1 of 0.70 to 0.95 wherein the height H 1 is a height from the baseline at said peak P 1 .