Conductive carbon black, positive electrode plate, electrochemical apparatus, and electronic apparatus
AssigneeNingde Amperex Technology Limited
InventorXiaoqian LIU
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Abstract
A conductive carbon black includes a plurality of carbon black units and pores located between adjacent carbon black units, where the carbon black unit includes holes; a bulk density of the conductive carbon black is 0.05 g/cm3-0.1 g/cm3; and a pore volume of the hole is 0.05 cm3/g-0.5 cm3/g. The conductive carbon black in some embodiments of this application has good electrolyte retention, thereby increasing an electrolyte retention rate of the positive electrode plate and further improving the performance of the electrochemical apparatus.
Claims20
A conductive carbon black, wherein the conductive carbon black comprises a plurality of carbon black units and pores located between adjacent carbon black units, wherein each carbon black unit comprises holes;
- and
- a bulk density of the conductive carbon black is 0.05 g/cm3-0.1 g/cm3, and a pore volume of the holes is 0.05 cm3/g-0.5 cm3/g.
A positive electrode plate, comprising a binder, a positive electrode active material, and a conductive carbon black;
- wherein the conductive carbon black comprises a plurality of carbon black units and pores located between adjacent carbon black units, wherein each carbon black unit comprises holes;
- and
- a bulk density of the conductive carbon black is 0.05 g/cm3-0.1 g/cm3, and a pore volume of the holes is 0.05 cm3/g-0.5 cm3/g.
An electrochemical apparatus, comprising the positive electrode plate, a negative electrode plate, and a separator, wherein the separator is disposed between the positive electrode plate and the negative electrode plate;
- wherein the positive electrode plate comprises a binder, a positive electrode active material, and a conductive carbon black;
- wherein the conductive carbon black comprises a plurality of carbon black units and pores located between the adjacent carbon black units, wherein the carbon black units comprise holes;
- and
- a bulk density of the conductive carbon black is 0.05 g/cm3-0.1 g/cm3, and a pore volume of the holes is 0.05 cm3/g-0.5 cm3/g.
Dependencies are inferred from the claim text.