The common fault and causes of lithium batteries are mainly as follows:1, low battery capacity
Cause: a. The amount of attachment is small; b. The amount of polar flakes differ from the difference between the attachment; C. Censions breakage; d. Electrolyte less; E. Electrolytic liquid conductivity is low; f. Positive and negative block Not equipped; g. The diaphragm porosity is small; h. Adhesive aging → Attachment falls; i. Colloids ultra-thick (unsubstantially not penetrated) J. Posage is not fully charged; k. Positive and negative The material is small.
2, battery resistance increase
Cause: a. Negative electrode sheet and extortion; b. Positive electrode tablets and extorted soldel; c. Positive ear and cap duly welding; d. Negative ear and shell deficiency; e. Rivet and pressure plate contact ; F. Positive Negative electrical appliance; g. There is no lithium salt in electrolyte; h. The battery has been short-circuited; i. The diaphragm paper porosity is small.
3, battery voltage is low
cause:
a. Depression (electrolytic solution decomposition; positive impurities; water); b. Unification (SEI film does not form safety); c. Customer's circuit board leakage (refer to the battery that is sent back after processing); D The customer did not print (the core after the process); E. burr; f. Micro short circuit; g. The negative electrode produces dendrites.
4. The following points have the following reasons for ultra-thickness:
a. Weld leakage; B. Electrolytic solution decomposition; c. No dry water; D. Cap sealing is poor; E. Shell wall is too thick; f. Shell is too thick; g. Coil is too thick (too much) The pole is not compacted; the diaphragm is too thick).
5, battery changes into an abnormal
a. The unified formation (SEI film is incomplete, dense); b. baking temperature is too high → adhesive aging → deprive; C. The negative electrode is low; d. Positive electrode atmosphere and negative attachment; E Air leakage, weld leakage; F. Electrolytic solution decomposition, and electrical conductivity decrease.
6, battery explosion
A. The distribution cabinet has failed (caused by supercharge); b. Diaphragm closed effect; c. Internal short circuit.
7. Battery short circuit
A. Cool; b. Shell fashion; c. Vegetable scraping (diaphragm is too small or unpleassed); d. Wound is not uniform; e. No package is good; f. The diaphragm has holes; g. Burr
8. Battery is broken.
A) Extreme ear and rivets are not welded, or the effective solder joint area is small;
B) The connecting piece is broken (which is too welded when the connecting piece is solder or solder is soldered) Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
