Why is lithium battery explosion? How to prevent the lithium battery explosion?

Source: 2020 - 04 - 15 that hits: why lithium battery explosion? At present, we use the lithium battery is mainly used in mobile phones, notebook computers, digital cameras and some electric cars. Strictly speaking, the lithium ion battery is lithium ion battery. Lithium battery described in this article refers to the lithium ion battery. Lithium battery charge and discharge process is lithium ion in the process of transfer between the positive and negative. We can compare it to a 'rocking chair' : when charging, it is like in a push 'rocking chair, embedded lithium ion from the positive to the negative terminal; When discharge, this' rocking chair 'automatic rotation, lithium ion from the cathode embedded and embedded to the anode. Lithium metal elements is a very lively, lithium ion 'flow' between the positive and negative, is essentially a chemical reaction. If the chemical reaction is too intense, lithium ion battery will explode in a flash, like a rocking chair overturned ( See chart) 。 Laptop explosion, of course, designers and manufacturers have considered these risks, and installed in the lithium battery protection device, so the possibility of lithium battery explosion is still small. But in some special circumstances, the protection will be failure, such as charging time is too long, direct contact with water, lithium battery polar hit the same metal conductor, short circuit, such as the most important thing is, protect itself quality is poor. So, cell phone, computer, etc. , using lithium battery, it is best to use the original, and pay attention to moisture, prevent high temperature exposure, not direct contact with the metal lithium battery anode and cathode, at the same time, we in the lithium battery charging and discharging, pay special attention to not too much. Run out of electricity recharging can extend battery life? Myth: many people will not forget that new cell phone battery, the battery must be shutdown and charging more than 8 hours, to boot. This process is known as active, is said to be in order to keep the cell phone battery to achieve maximum capacity. Laptop and mobile phone after it is best to use rechargeable batteries, to decrease The Times of charging and extend battery life. This sentence is true? Truth: the need to 'activate' early nickel cadmium rechargeable battery and nickel metal hydride rechargeable battery, the battery will produce a phenomenon known as 'memory effect', in not completely discharge state, easy to make a battery overcharge, after a long period of time can cause the battery voltage drops, let users having the feeling that the battery soon ran out. However, today's mobile phones and laptop computers use most of the battery is lithium ion battery. Lithium ion battery at the beginning of the use don't need to activate by depth charge and discharge, no 'memory effect', can be used as needed. Generally speaking, the lithium ion battery life can reach hundreds of times to charge and discharge cycle. So, when you have a chance to recharge the battery, it rushed to a state of almost unplugged, eat much food less, but don't eat too much.