Graphene battery used for electric road vehicle

The present invention relates to a graphene battery used for an electric road vehicle. The paste mixing formula of a positive electrode contains graphene, and the weight content of the graphene is 0.05-0.1%. The graphene battery is a lead-acid battery. A grid alloy of the lead-acid battery adopts the formula of a rare earth alloy, metal sliver and rare earth lanthanum are added in the grid alloy,the mass content of the sliver is 0.001%, and the mass content of the rare earth lanthanum is 0.005%. The battery has the advantages of good low temperature performance, good large-current discharge performance and long battery cycle life. 本发明涉及种电动道路车用石墨烯电池，所述正极合膏配方中含有石墨烯，所述石墨烯重量含量为0.05-0.1%。所述的石墨烯电池为铅酸蓄电池。所述铅酸蓄电池板栅合金采用稀土合金配方，采用在板栅合金中添加金属银和稀土镧，所述银的质量含量为0.001%，稀土镧的质量含量为0.005%。本发明低温性能优良和大电流放电性能好，电池循环寿命长。