Lithium battery leakage detection and preventive measures are divided into

(1) Choose regular and big-brand batteries. At present, the market is full of a large number of counterfeit and refurbished batteries. The biggest advantage of this type of battery is that it is cheap, but the risk is great; and the outer casing material may be made of secondary materials, which are relatively brittle and hard. It is easy to rupture and cause liquid leakage; even cut corners and reduce investment, the thickness of the shell is insufficient, and it cannot withstand the normal pressure or collision that occurs during use. Therefore, it is fundamentally necessary to ensure that the battery products purchased are from regular sources and from big brands. At present, in the domestic market, the first-line imported brands include Yuasa, Panasonic, Sunshine, Hebec, Feifan and other products; domestic brands include KELONG, Xiongtao, Shuangdeng, Nandu, Guangyu, etc., all with quality assurance. (2) Choosing a qualified engineering installer for installation is a very important process. During installation, the battery must be assembled and removed. The battery shell will directly contact the battery rack/cabinet. Adding the weight of the battery, it is easy to cause bumps. If you want to handle it with care, you need a lot of physical strength, professionalism and responsibility, otherwise the result will be very unsatisfactory; and the rupture of the battery shell caused by the installation will not be visible at the time of acceptance, which will bury hidden risks in the later stage. . It is recommended to choose professional construction personnel with qualifications, strict management, strong technology and after-sales guarantee to ensure that the entire construction process is controlled and guaranteed. (3) The physical isolation method eliminates all possible risks and prevents them from occurring in order to ensure the reliable operation of products and equipment and reduce risk detection. Isolating the battery from the battery rack/cabinet is an effective way. The non-conductive plastic tray is used between the battery and the rack. When there is leakage, the acid will remain in the tray to prevent it from becoming a charged whole with the battery structure, which can effectively prevent electric shock. (4) The principle of the battery real-time monitoring method: when the battery leaks, with the loss of the acid, the battery's current transmission capacity decreases and the internal impedance increases. The final manifestation is the increase in the battery internal resistance and the voltage change. By judging the change of the internal resistance and voltage of the battery, it can be judged that the battery is abnormal. Method: Choose a suitable battery monitor system, detect the voltage, temperature, and internal resistance of each battery in real time, set the alarm value, when there is an abnormality, provide sound and light alarms, and maintenance personnel can find and deal with it in the first time , To prevent risks from occurring. The device can continuously detect 24 hours, know the battery parameters in time, and can analyze the changing trend of the battery according to the historical data of the battery, and grasp the life and status of the battery in time to prevent it before it happens. (5) Principle of the insulation resistance monitoring method: In the case of battery circuit and AC circuit isolation, when the battery leaks, the battery acid will definitely contact the battery rack/cabinet. Due to the conductive use of the electrolyte, at this time, the positive and negative poles of the battery are connected with each other. The impedance between the battery racks will become smaller, to a certain value, there will be a risk of electric shock. Method: Choose a suitable DC insulation impedance monitor, detect the impedance of the battery positive/polarity and the battery rack/cabinet in real time, set the alarm value, when there is an abnormality, provide an audible and visual alarm, and the maintenance personnel can find it in the first time. Deal with it to prevent risks from occurring. 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: What are the precautions and maintenance methods for lithium battery packs?