Graphene is widely used in lithium-ion batteries due to its good electrical conductivity. Generally, graphene is added to lithium-ion batteries in the form of powder directly or by dispersing the powder in a solution before adding it. This paper proposes a one-pot method to prepare graphite anode electrode slurry. The graphite and binder are put into the NMP(N-Methyl-2-pyrrolidone) solution. Then the mixed solution is stirred at high speed to prepare the electrode slurry. This method is characterized by the integration of the graphene preparation with the electrode slurry preparation process. The capacity of graphite anode materials prepared using the one-pot method without adding acetylene black conductive agent after cycling and stabilization is comparable to that of graphite electrodes with 10 % acetylene black conductive agent added by the conventional process. When 5 % acetylene black was added to the electrodes prepared by the one-pot method, the initial capacity of graphite electrodes was increased by 31.8 % compared with that of graphite electrodes with 10 % conductive agent added by the conventional process, and the capacity was increased by 12.5 % after cycle stabilization. The one-pot method used 50 % less acetylene black than the traditional process and made graphite electrodes with better electrochemical charging, discharging, and rate performance.

石墨烯因其良好的导电性而广泛应用于锂离子电池。通常，石墨烯以粉末形式直接添加到锂离子电池中，或者将粉末分散在溶液中后再添加。本文提出了一种一锅法制备石墨负极浆料的方法。将石墨和粘合剂放入NMP（N-甲基-2-吡咯烷酮）溶液中。然后高速搅拌混合溶液以制备电极浆料。该方法的特点是石墨烯制备与电极浆料制备过程一体化。不添加乙炔黑导电剂的一锅法制备的石墨负极材料，循环稳定后容量与石墨负极材料相当按常规工艺添加10%乙炔黑导电剂的石墨电极。在一锅法制备的电极中添加5%乙炔黑时，石墨电极的初始容量比常规工艺添加10%导电剂的石墨电极提高了31.8%，容量为循环稳定后增加了12.5%。一锅法比传统工艺减少了50%的乙炔黑用量，制得的石墨电极具有更好的电化学充放电和倍率性能。