Working principle and structure of the lithium ion battery

Source: 2020 - 03 - 23 and the hits: lithium ion battery: is a secondary battery ( Rechargeable battery) , which rely on lithium ion between the positive and negative poles mobile to work. , in the process of charging and discharging lithium ion reciprocating embedded between two electrodes, and stripping: in the process of charging, lithium ion from the anode stripping, through the electrolyte embedded negative. Discharge, on the other hand. It doesn't contain toxic and harmful substances, known as the green cells. The author introduce the working principle of lithium-ion batteries for everybody, structure, defects and lithium battery, carbonic acid iron battery, polymer battery. Lithium batteries are divided into lithium battery and lithium ion batteries. Mobile phones and laptops use lithium ion battery, often referred to as lithium ion batteries. Batteries contain as the electrode material of lithium, is generally selected is representative of the modern high-performance batteries. Real lithium ion battery is rarely used in daily electronic products, because they are dangerous. Lithium ion batteries developed by SONY, for the first time in 1990. It will include lithium ion embedded carbon ( Petroleum coke and graphite) Formed in the anode ( Traditional lithium-ion battery of lithium or lithium metal cathode) 。 The structure of the lithium ion battery part 1) The positive active material is generally lithium manganese acid salt may be cobalt acid lithium, manganese acid lithium cobalt nickel material, electric bicycle is widely used lithium cobalt nickel manganese acid ( Commonly known as the three) May be 3 + a few manganese acid lithium, pure manganese acid lithium and lithium iron phosphate due to the large size, function is bad or the high cost, and gradually fade out. Conductive fluid using electrolytic aluminum foil 10 to 20 microns thick. Diaphragm a special form of polymer film with microporous structure, lithium ion in the absence of electronic will be allowed to pass. 3) The cathode active material is graphite, or similar to graphite structure of carbon. Conductive liquid collected by thickness of 7 - 15 microns of electrolytic copper foil. 4) Organic electrolyte containing dissolved in six fluoride phosphate lithium carbonate solvent, polymer electrolyte in gel. 5) Battery shell is divided into steel shell ( Rarely used for square type) Iron shell, aluminum, nickel plating, Used for cylindrical battery) , aluminum plastic film ( Flexible packaging) , etc. , and the battery cover, it is the positive and negative of the battery. The working principle of lithium-ion batteries, lithium ion battery cathode of carbon materials, lithium compounds as positive, there is no metal lithium, lithium ion, this is the lithium ion battery. Lithium ion battery refers to battery on anode materials for lithium ion embedded compounds. Lithium ion battery charging and discharging process of embedding process is embedded and lithium ion. And in lithium ion to the process of embedding, with lithium ion equivalent electronic embedding and the embedding ( Traditionally, the anode by embedding or go to the embedding, the cathode by wear or to the embedding) 。 , in the process of charging and discharging lithium ion between the positive and negative reciprocating embedded/splitting and piercing stripping, this is known as' rocking-chair batteries'. When batteries, lithium ion batteries positive form, through the resulting lithium ion electrolyte to the anode. As the cathode carbon is a layered with many microporous structure. Arrived at the cathode of lithium ions are embedded into the pores of the carbon layer. Lithium ion, the more the greater the charge capacity. Similarly, when the battery discharge ( As we have used) , embedded in the lithium ions in the cathode carbon escape and return to the anode. Return to the anode of lithium ion, the discharge capacity is larger.