What are the reasons for battery self-discharge

1. There is grounding or short circuit outside the battery. When the battery lead is grounded to the main body, or the wrench or wire on the battery casing is connected to the positive and negative electrodes, strong self-discharge will occur and the electrical energy will be released quickly. In addition, when there is spilled electrolyte on the battery case and the top cover, the positive and negative terminals can be connected to each other and discharged. 2. When the battery separator is corroded, perforated or damaged, or there are too many deposits under the positive and negative plates, the positive and negative plates are directly connected and short-circuited, resulting in self-discharge of the battery. 3. The electrolyte is impure, contains impurities, or does not add pure water. When the impurities in the electrolyte adhere to the electrode plate with the flow of the electrolyte, forming a certain potential difference between the impurities, they will be in the battery A large number of micro-batteries are formed, and the batteries are often in a short-circuit state. The experimental results stated that when the electrolyte contains 1% iron, the battery is completely discharged within 24 hours after charging. 4. The battery board itself is of poor quality, contains more impurities, and can also form a large number of micro-batteries and discharge. 5. The storage time of the battery is too long. The water and sulfuric acid in the electrolyte are stratified due to the different specific gravity. Therefore, the density of the electrolyte is small and large, and a potential difference is formed to discharge itself. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Will lithium batteries replace solar energy storage batteries?