Lithium batteries as a class of lithium metal or lithium alloy as the anode material, the use of non-aqueous electrolyte solution batteries. With the development of microelectronic technology in the 20th century, miniaturization equipment is increasing day by day, putting forward high requirements on the power supply. The use of lithium batteries has become mainstream, but people know little about it.
      How to store lithium battery power? Why some lithium batteries will explode? Become everyone's concern. Next, a huge company's engineers take you to find out.
      First, charge and discharge principle
      When the battery is charged, lithium ion is generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. The negative electrode has a layered structure of carbon, which has many micropores. The lithium ions that reach the negative electrode are embedded in the pores of the carbon layer. The more lithium ions are embedded, the higher the charge capacity.
      Similarly, when the battery is discharged (that is, we use the battery process), embedded in the negative carbon layer of lithium ions prolapse, and back to the positive movement. The more lithium ions are returned to the positive electrode, the higher the discharge capacity. We usually say that the battery capacity is the discharge capacity.
      It is not difficult to see that in the lithium-ion battery charge-discharge process, lithium ions in the positive → negative → positive movement. If we vividly liken lithium-ion battery as a rocking chair, rocking the ends of the battery poles, and lithium-ion is like a good athlete, back and forth running at both ends of the rocking chair. Therefore, the experts gave the lithium-ion battery a lovely name - rocking the battery.
      Second, why lithium batteries easily lead to explosion after being pressured?
      When the battery is subject to a certain amount of pressure, the shape of the battery under the influence of external forces has changed. Like this, concentrated battery cells were forced to bend the positive and negative until the positive and negative contact between the battery short-circuit. The electron is released sharply at this moment, producing a lot of heat. During this brief process, the electrolyte is converted to gas, causing the battery to expand. The foil bag, which eventually wraps the battery, is opened and the spark ignites the evaporated electrolyte in the air. The entire battery pack is shrouded in fire and heat caused by the short circuit. The surrounding cells detonate one by one until the entire battery pack is completely burst.
      Third, how to properly use lithium battery
      1. Should be completely discharged (to black screen blackout);
      2 regular charge and discharge of lithium batteries, not fully discharged or use an external power supply, charging while using, or continue to use the external charging, will not cause additional battery loss;
      3. Long-term non-use, the lithium battery should be removed, placed in a cool dry place. Do not freeze, to avoid moisture erosion. Avoid using in hot cars. Such as long time to save, the battery charge to 40% after the placement;
      4. As a notebook user, if most of the time is to use a fixed power supply, you can remove the battery in the shade, but only because of the battery such as temperature, humidity and other environmental factors to improve, and to protect the battery cover, metal contacts Concept, it is recommended not to use the external power supply, remove the battery frequently;
      5. Avoid the purchase of spare lithium-ion battery for storage, because even if the battery is not used, the service life is naturally compromised, so the limited life of the battery, the maximum use to reflect the value of the battery.