I lost again in the competition with BYD. Lei Hongjun, Chief Engineer of Yangzijiang Automobile Group and Expert Committee on Energy Conservation and New Energy Vehicles, stated at the Global Automotive Forum on June 5th that he had previously advocated for new energy vehicles to be equipped w...

4. Short circuit of electrode plate The direct contact or overlap of the positive and negative plates of a battery by other conductive substances is called a short circuit of the plates. The phenomenon of this fault is that the terminal voltage rises relatively slowly during...

3. Plate grid corrosion The corrosion of the electrode plate grid refers to the corrosion of the positive electrode plate grid frame. The electrode plate is in a corrosive state, and active substances are piled up in blocks between the partitions. The phenomenon of this faul...

(2) Severe cases of vulcanization charging should be repaired using water therapy. At this point, the electrolyte level drops and a semi dry state appears. First, add pure water to the battery, and then use the second stage current balance charging method to continue charging for several days....

(3) Long term excessive discharge or low current deep discharge can cause the formation of lead sulfate in the pores of active substances deep in the electrode plate. The battery should not be excessively discharged, and each time the starter is turned on, the time should not exceed 5 seconds....

The phenomenon of plate vulcanization failure is characterized by the formation of insoluble white coarse crystalline lead sulfate on the plate, which cannot be converted into active substances during normal charging. When a faulty battery is discharged, the voltage drops sharply and premature...

(2) Battery material recycling:If the power lithium-ion battery is recycled and fails to meet the requirements for cascade utilization after testing, it will be directly recycled by the recycling company for scientific analysis of the power lithium-ion battery. Waste materials that may cause polluti...

Regarding the issue of recycling power lithium-ion batteries for new energy vehicles, relevant departments have already made plans and recently launched multiple management policies related to the recycling of power lithium-ion batteries, which can be said to be prepared in advance for the rec...

5. Safety hazards during battery useDuring the use of lithium-ion batteries, overcharging or discharging should be minimized as much as possible, especially for batteries with high monomer capacity. Thermal disturbances may cause a series of exothermic side reactions, leading to safety issues....

3. Safety hazards of membranes and electrolytes The electrolyte of lithium-ion batteries is a mixed solution of lithium salts and organic solvents, among which the commercially available lithium salt is lithium hexafluorophosphate. This material is prone to thermal analysis...