What is the working principle of lithium-ion battery?

Portable electronic products with battery as a power source. With the rapid development of portable products, all kinds of the dosage of the battery, and developed many new type of battery. In addition to all the familiar of high-performance alkaline batteries, rechargeable nickel cadmium battery, nickel metal hydride batteries, and in recent years, the development of lithium battery. Here introduces about the basic knowledge of lithium-ion batteries. Including its features, main parameters, the type, application scope and the significance of using considerations such as the large capacity lithium battery. All kinds of lithium battery types of energy density is a kind of metal elements, chemical symbol for Li ( Its English called lithium) , is a silvery white, very soft and lively metal chemical performance, is the lightest in the metal. It besides applied in atomic energy industry, can manufacture special alloy, special glass ( On the television screen glass) And lithium batteries. It is used as the battery in the lithium battery anode. Lithium-ion batteries are divided into two categories: not charging and rechargeable ones. Don't charge the battery called disposable batteries, it can only be chemical energy into electrical energy at once, can't energy reduction back into chemical energy ( Or reduction performance is poor) 。 The rechargeable battery is called secondary battery ( Also known as a battery) 。 It can transform electric energy into chemical energy storage, when using, and then convert chemical energy into electrical energy, it is reversible, such as the main characteristics of electricity chemical energy lithium batteries. Common cathode material of main ingredients for LiCoO2, charging, plus the poles of the battery electric potential force compounds release lithium ion anode, embedded negative molecules are arranged in the layer structure of carbon. Lithium ions move the current large capacity lithium battery. Although the chemical reaction principle is very simple, but in the actual industrial production, more need to consider the practical problems: the anode material need additives to be many times the activity of inflation, the cathode material structure at the molecular level to design to accommodate more lithium ions; Filling between is the cathode electrolyte, in addition to the stable, also need to have good electrical conductivity, reduce the battery internal resistance. Mainly is the change of the anode materials itself, from the molecular level, is the cathode for lithium ion hole structure will gradually collapse, congestion; Physically there will be the anode material gradually spalling, etc. , in short eventually reduce the battery is free to move in the process of charging and discharging lithium ion number.