Dec 25,2023
Advantages of lithium-ion batteries
High operating voltage, lithium-ion battery operating voltage of 3.6V; high specific energy, is 1.5 times that of the JinHydrogen battery; long cycle life, the current cycle life of up to 1,000 times or more, in the low depth of discharge can be up to a few tens of thousands of times; self-discharge rate is low, the monthly self-discharge rate of only 6% ~ 8%, lower than the nickel-metal hydride batteries (15% ~ 20%); no memory; no pollution to the environment; able to be manufactured into any shape.
Dec 25,2023
Disadvantages of lithium-ion batteries
Disadvantages: poor consistency of the battery monomer, large performance degradation after grouping, cycle life and safety is difficult to guarantee, high cost; in the overcharging or abuse conditions, lithium-ion batteries may fire or explosion, so there must be a special protection circuit, must pay attention to the battery grouping technology, research and development of more reliable thermal management system and battery management system and other technologies.
Dec 25,2023
Characteristics of lithium-ion batteries
The charging voltage of lithium-ion battery cells must be strictly maintained at about 4.1V, and the charging current is usually limited to less than 1C. If the charging voltage exceeds 4.5V, it may cause permanent damage to the lithium-ion battery. Lithium-ion battery discharge current should not normally exceed 3C. discharging monomer voltage must not be less than 2.2V. battery voltage below 2.2V, it will cause permanent damage.
Dec 25,2023
What are the characteristics of lithium-ion batteries
Lithium-ion batteries are batteries that use lithium metal or lithium alloy as the anode material and use a non-aqueous solution. The negative electrode of a lithium ion battery is a graphite crystal and the positive electrode is usually lithium dioxide. When charging, lithium ions move from the positive electrode to the negative electrode and are embedded in the graphite layer. When discharged, lithium ions are detached from the surface of the negative electrode within the graphite crystal and move to the positive electrode. Because the battery charging and discharging process lithium is always in the form of lithium ions, rather than in the form of lithium metal. Therefore, this kind of battery is called lithium-ion battery. Lithium-ion batteries have some of the following characteristics.
Dec 25,2023
The working principle of lithium battery is also the principle of lithium battery charging and discharging, that is, the process of embedding and de-embedding of lithium ions. When charging, the positive electrode of the battery lithium ion generation occurs, these lithium ions in the electrolyte under the action of the negative electrode, move. When the battery is discharged, the negative carbon layer embedded lithium ions and shedding and then turn back to the positive electrode. In order to make it easier for you to understand the working principle of lithium batteries, here I popularize it for you.
Dec 25,2023
Lithium batteries use two compounds that can reversibly embed and de-embed lithium ions as the positive and negative electrodes respectively to form a secondary battery. This also indicates that lithium in lithium batteries will always be in the form of lithium ions, not in the form of lithium metal.
Dec 25,2023
Charging process of lithium battery
Lithium battery charging, generating lithium ions in the positive electrode of the battery, lithium ions transported to the negative electrode by the electrolyte; and as the negative electrode of the structure composed of carbon naturally forms many small holes, and arrives at the negative electrode of lithium ions are wrapped in the charcoal layer of tiny holes, wrapped in more lithium ions will have a greater charging capacity.
Dec 25,2023
Discharge process of lithium battery
When a lithium battery is discharged, the lithium ions buried in the carbon layer of the negative electrode will detach and return to the positive electrode, and the more lithium ions detached, the higher the current of the battery and the higher the electric capacity.