Second, never overcharge! Lithium batteries are most afraid of over-discharge. On the mobile phone, there is no problem with this. Excessive current will cause heat inside the battery, which may cause permanent damage. Lithium battery discharge needs to pay attention to a few points:įirst, the discharge current should not be too large. Just like pouring beer, if you pour it too fast, it will cause bubbles and be dissatisfied.įor batteries, normal use is the process of discharge. Moreover, if the current is too large to charge, the capacity is not enough, because the electrochemical reaction inside the battery takes time. The greater the current, the faster the charging, and the greater the heating of the battery. Generally, the charging current of lithium batteries is set between 0.2C and 1C. The more lithium ions return to the positive electrode, the higher the discharge capacity. Similarly, when the battery is discharged (that is, the process we use the battery), the lithium ions embedded in the negative carbon layer are released and move back to the positive pole. The more lithium ions embedded, the higher the charging capacity. Lithium ions that reach the negative electrode are embedded in the micropores of the carbon layer. When the battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. During charging and discharging, lithium ions are embedded/deemed and inserted/unplugged back and forth between positive and negative electrodes, which is vividly called "rocking chair batteries". During the embedding and de-embedding of lithium ions, it is accompanied by the embedding and de-embedding of electrons equivalent to lithium ions (habitually, the positive electrodes are represented by embedding or de-embedding, while the negative electrodes are represented by insertion or de-inserting). The charging and discharging process of lithium-ion batteries is the embedding and de-embedding process of lithium ions. Lithium-ion batteries refer to batteries with lithium-ion embedded compounds as cathode materials. There is no lithium metal, only lithium-ion, which is a lithium-ion battery. Lithium-ion batteries use carbon materials as the negative electrode and lithium-containing compounds as the positive electrode. Generally, lithium-containing materials are used as electrodes for batteries, which are representative of modern high-performance batteries. In the process of charging and discharging, Li+ is embedded and de-embedded back and forth between the two electrodes: when charging the battery, Li+ is de-embedded from the positive electrode and embedded in the negative electrode through the electrolyte, which is in a lithium-rich state when discharging, the opposite is true. Lithium-ion batteries are rechargeable batteries that mainly rely on lithium ions moving between the positive and negative electrodes to work. Real lithium batteries are rarely used in daily electronic products because of their great danger. Both mobile phones and laptops use lithium-ion batteries, commonly known as lithium batteries. Lithium batteries are divided into lithium batteries and lithium-ion batteries. Main equipment for lithium-ion battery production
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