▎ 摘　　要

NOVELTY - High cycle performance lignin-based graphene material cathode comprises 100-150 pts. wt. ammoniated graphene microchips, 8-12 pts. wt. modified silica-lignin nanospheres, 1-3 pts. wt. dispersant, 0.5-2 pts. wt. hydrogen evolution inhibitor and 300-500 pts. wt. deionized water. The dispersant is methanol or ethanol, the hydrogen evolution inhibitor is barium stearate. USE - Used as high cycle performance lignin-based graphene material cathode. ADVANTAGE - The high cycle performance lignin-based graphene material cathode has improved flux and interception rate of graphene micro-sheet, which can effectively improve the conveying ability of lithium ion, inhibits the lithium crystal deposition caused by slow transmission of the lithium cathode, and improves the circulation performance of the metal lithium. The modified silicon dioxide-lignin nano-sphere reduces the strain force of the electrode in the cycle charging and discharging process by modifying the lignins, the cracking and pulverization of the silicon are suppressed, the performance is more stable, and the lithium ion battery is improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparing high cycle performance lignin-based graphene material cathode.