| abstract |
The invention pertains to the technical field of a Li-ion battery, in particular to a method of replenishing lithium for the negative plate of a Li-ion battery. Under inert atmosphere, organic lithium solution is sprayed or dripped on the negative plate surface so that lithium-ion in the organic lithium solution is reduced to lithium metal which is embedded in the negative plate, and then the negative plate is dried. Compared with the prior art, in the invention, the organic lithium solution is uniformly sprayed or dripped on the negative plate surface for realization of lithium replenishment by way of a wet process, thus effectively avoiding floating of lithium metal powder in the air during lithium replenishment by way of a dry process, which not only guarantees production safety, but also is characterized by simple process and lower cost. |