Some drivers often forget to charge the lithium battery during use. Because the lithium battery is not fully charged in the car, it is easy to cause the electrode plate to vulcanize; at the same time, the charge and discharge in use are not balanced. If the discharge is greater than the charge, the lithium battery will be in a state of loss of electricity for a long time, and the lithium battery plate will slowly vulcanize. This kind of chronic vulcanization will cause the charging capacity of the lithium battery to continue to decrease until it cannot be started, which greatly shortens the service life of the lithium battery. The order of lithium batteries for forklifts in the Dalian Development Zone is just the opposite. Connect the positive electrode first and then the negative electrode. What should you pay attention to when using lithium batteries? The reporter interviewed Mr. Zhou, deputy general manager of Changqing Lithium Battery Co., Ltd. and Guangzhou Guangxiongsheng Industry and Trade Co., Ltd. Xu Jingxiong, general manager of the company. Zhou Yongjian said that lithium batteries can be divided into starter batteries and traction batteries. Starter batteries include maintenance-free batteries and "water-filled" batteries.
In order to reduce the active material on the pole plate of the lithium battery in time, reduce the vulcanization of the pole plate, improve the charging capacity of the lithium battery, and extend the service life of the lithium battery, the lithium battery in use should be changed regularly. Instead, connect the positive electrode, then the negative electrode, the positive electrode of the battery is connected to the positive electrode of the power supply, and the negative electrode of the battery is connected to the negative electrode of the power supply, and then the initial charging is carried out in two stages: first, use the initial charging current to charge the electrolyte to release the foam, and a single battery The voltage rises to 2.3 ~ 2.4 v. Then reduce the current to 1/2 of the initial charging current and continue charging until the electrolyte emits strong bubbles and the voltage stabilizes for 3 hours. The total charging time is about 45 ~ 65h.
Lithium batteries are often overcharged. Even if the charging current is not large, the electrolyte will "boiling" for a long time. In addition to the fine particles on the surface of the active material, it is also easy to fall off, causing the mesh to be excessively oxidized, causing the active material to be loosely separated from the mesh. Sometimes I find that the power on the road is not enough. First connect the positive pole of the battery to the positive pole of the power supply, and the negative pole of the battery to the negative pole of the power supply, and then perform the initial charging in two steps
First, use the initial charging current to charge the electrolyte, release bubbles, and increase the single cell voltage to 2.3 ~ 2.4V. Then reduce the current to 1/2 of the initial charging current and continue charging until the electrolyte emits strong bubbles and the voltage stabilizes for 3 hours. The total charging time is about 45 ~ 65h.
Due to the different materials of the positive electrode sheet and the negative electrode sheet of the lithium battery, in addition to the active material, the negative electrode sheet is also added with barium sulfate, humic acid, carbon black, rosin, and other substances to prevent the shrinkage and oxidation of the negative electrode sheet. Forklift lithium batteries in Dalian Development Zone are just the opposite. Connect the positive electrode first, and then the negative electrode. Therefore, you must pay attention to the polarity when charging. We cannot reverse the polarity charging. Nowadays, there are more and more electronic devices in cars. When using these electronic devices, users should try not to overload the lithium battery. Lithium battery overload will reduce the service life of the lithium battery. It is very important to master the correct method of charging the lithium battery.
