What is the difference between lithium ion batteries and lithium ion batteries

Lithium-ion batteries generally use lithium cobaltate as the positive electrode and carbon as the negative electrode. The electrolyte is filled in between to form a channel for ion dissociation, and the positive and negative electrodes are separated by a diaphragm to prevent short circuits. When charging, due to the use of electric field, lithium ions swim out of lithium cobalt oxide, free in the electrolyte, pass through the pores in the separator, and reach the negative electrode, reacting with carbon to form lithium carbide; the discharge process is contrary to this, and lithium ions return to the positive electrode. It is the charging and discharging process of lithium ion batteries. Lithium-ion batteries generally refer to primary lithium-ion batteries, including lithium manganese and lithium iron batteries. Lithium-ion batteries are mainly lithium secondary batteries, and rechargeable batteries are mainly lithium manganese oxide, lithium cobalt oxide, and ferrous phosphate lithium ion batteries, and other lithium-ion power lithium batteries are important for lithium-ion batteries suitable for power lithium batteries. Important features It is a battery that can discharge at high power and has a long cycle life, such as a lithium iron phosphate lithium ion battery. Lithium-ion batteries use metal lithium as an electrode, and current occurs through electron transfer. Because dendrites are prone to cause explosions, they are no longer in use. Lithium-ion batteries are primary batteries. Lithium-ion batteries are charged and discharged by the transfer of lithium ions, and it is important to use lithium-doped metal oxides as electrodes. Lithium-ion batteries are rechargeable secondary batteries. 1. Lithium primary battery is also called primary lithium ion battery. It can be discharged continuously or intermittently. Once the electricity is exhausted, it can no longer be used, and it is widely used in low-power electronic products such as cameras. The self-discharge of lithium primary batteries is very low and can be stored for 3 years. The effect will be better if stored under refrigerated conditions. It is a good way to store lithium primary batteries in a cold place. Note: Lithium primary batteries are different from lithium-ion batteries. Lithium primary batteries cannot be charged and are very dangerous to charge! Lithium-ion battery principle-lithium metal batteries Lithium metal batteries often use manganese dioxide MnO2 as the positive electrode material, and use metal lithium Li or its The alloy is a negative electrode material, and a battery that uses a non-aqueous electrolyte solution. The chemical equation of the discharge reaction is Li+MnO2u003dLiMnO2. 2. Lithium ion batteries are also called secondary lithium ion batteries. It can be stored for more than half a year at 20°C. This is because its self-discharge rate is very low and most of its capacity can be recovered. Principle of Lithium Ion Battery Lithium ion batteries often use lithium alloy metal oxides as positive electrode materials, graphite as negative electrode materials, and batteries that use non-aqueous electrolyte solutions. The chemical equation of the positive electrode during charging is LiCoO2u003du003dLi(1-x)CoO2+XLi++Xe- (electron), the chemical equation of the negative electrode is 6C+XLi++Xe-u003dLixC6, and the total reaction of the battery during charging is LiCoO2 +6Cu003dLi(1-x)CoO2+LixC6. The self-discharge phenomenon of lithium-ion batteries, if the battery voltage is kept below 3.6V for a long time, it will cause the battery to over discharge and destroy the internal structure of the battery, reducing the battery life. Therefore, long-term storage of lithium-ion batteries should be recharged every 3-6 months, that is, charged to a voltage of 3.8~3.9V (the best storage voltage of lithium-ion batteries is about 3.85V) and maintained at a depth of discharge of 40%-60% Suitable, not full. The battery should be stored in a dry environment at 4°C~35°C or in moisture-proof packaging. Keep away from heat sources, and don’t place it in direct sunlight. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Can the 18650 battery protection board be removed?