What Causes Battery Cell Failure?
2 Answers
The so-called battery cell failure condition actually refers to the disconnection of the internal plate connection bridge, which prevents the car battery from functioning normally (insufficient voltage). Immediate action is required in such cases, as the impact on the entire vehicle can be significant. So, what exactly causes battery cell failure, and how can it be repaired? 1. Battery cell failure is often caused by poor battery quality. After all, the battery as a power distribution device heavily depends on manufacturing processes, so extra caution is needed when selecting one. 2. Improper usage methods are another major cause, including prolonged deep discharge conditions and using high-power car appliances, both of which can lead to battery cell failure. (Deep discharge: When the vehicle is turned off, the car's internal equipment continues to operate, causing the battery to continuously drain power.) 3. The battery suffers severe impact or falls, causing internal plates to disconnect. For repairing battery cell failure, the first step is to extract the problematic single cell, then replace it with a new plate and seal it with adhesive. Finally, weld the terminal posts, add electrolyte, and charge the battery to complete the repair. Overall, repairing battery cell failure is neither too simple nor too difficult, so it's worth attempting. However, for beginners, it's best to have it handled by professionals at an auto repair shop.
I found that the main causes of battery cell failure are internal aging or damage to the battery. The most common reason is prolonged use, such as old batteries over three years old, where the internal plates and separators become fatigued and cracked. Additionally, poor driving habits, like frequent short trips without fully charging the battery, lead to lead sulfate buildup on the plates. Environmental factors also play a significant role. High summer temperatures cause the electrolyte to evaporate too quickly, leading to swelling, while winter freezing causes materials to expand and crack. Excessive vibration, such as driving on rough roads, or a poorly secured battery that shakes violently, can worsen the situation. After a cell failure, starting the car becomes difficult, and there may even be sparks or acid leakage, which is very dangerous. Therefore, I always try to avoid letting the battery run low and regularly check its appearance and charging status. Prevention is better than repair.
