Carbon black, slurry, and lithium-ion secondary battery
Carbon black having a specific surface area of 150 m 2 /g or more and 400 m 2 /g or less, and a ratio (S 2 /S 1 ) of a peak area (S 2 ) of a peak at m/z 128 to a peak area (S 1 ) of a peak at m/z 57 detected through thermal desorption spectroscopy of less than 2.00.
1 . Carbon black having a specific surface area of 150 m 2 /g or more and 400 m 2 /g or less, and a ratio (S 2 /S 1 ) of a peak area (S 2 ) of a peak at m/z 128 to a peak area (S 1 ) of a peak at m/z 57 detected through thermal desorption spectroscopy of 0.05 or more and less than 2.00.
2 . The carbon black according to claim 1 ,
wherein a DBP absorption is 200 mL/100 g or more and 350 mL/100 g or less.
3 . The carbon black according to claim 1 ,
wherein an ash content is 0.02 mass % or less.
4 . The carbon black according to claim 1 ,
wherein an iron content is less than 2,000 ppb by mass.
5 . A slurry comprising the carbon black according to claim 1 and a dispersion medium.
6 . The slurry according to claim 5 ,
wherein a viscosity at a shear rate of 10 s −1 at 25° C. is 200 mPa·s or more and 1,200 mPa·s or less.
7 . A lithium ion secondary battery, comprising a positive electrode, a negative electrode and a separator,
wherein at least one of the positive electrode and the negative electrode contains the carbon black according claim 1 .