Square cell structureA typical square lithium battery, the main components include: head, shell, positive plate and negative plate, diaphragm of laminated or winding, insulation, safety components, etcAmong them, two of the red circle is the security structure, NSD needle safety device;OSD overcharge protection device.

The lithium battery before the production process can be divided into sheet manufacture, the tathagata batteries after encapsulation, the Tao battery activation of three phases, cell activation stage is for the purpose of the live material and electrolyte in the battery been fully activated in order to achieve stable electrochemical performanceActivation stage includes preliminary charging, into, aging, such as constant volume phase.

According to the use of new energy vehicles cycle and the marketization process of China's new energy vehicles, this year will be the new energy vehicles power battery years of massive scrap recycling openIn the power battery scrap recycling process, both in pilot use and as a raw material recycling needs the support of recycling the main body, but for now, the reality is not ideal.

The lithium battery protective plate is the series lithium battery pack the charge and discharge protection;On a full charge can ensure each monomer battery between the voltage difference is less than the set value (plus or minus 20 mv) commonly, realize each battery monomer battery charge, effectively improve the serial charging mode of charging effect;At the same time detection of every single battery in the battery pack, overvoltage, undervoltage, over current, short circuit, over temperature condition, protect and extend the service life of the battery;Under-voltage protection makes every single battery in discharge to avoid when using battery damaged because of over dischargeFinished products of lithium battery mainly has two parts, and protection of lithium battery core board, lithium battery core is mainly composed of positive plate, diaphragm, negative plate, electrolyte composition;Positive plate, diaphragm, negative plate coil or cascade, packing and infusion liquid electrolyte, after packaging made from batteries, lithium battery protection board a lot of people don't know, the effect of lithium battery protection board, just as its name implies is to protect lithium batteries, lithium battery protection board's role is to protect the battery but put, but filling, but flow, and the output short circuit protection.

The analysis reasons of battery bulge and explosion:A,Lithium ion batteries featuresLithium is a chemical on the periodic table minimum diameter is also the most active metalSmall volume so high capacity density, popular with consumers and engineers.

In industry change the present situation, in 2018 to become high nickel material 811 outbreak of the first year?In fact, because the car companies and the battery enterprises, the import demand for high nickel ternary material urgently, advancing speed accelerating, since the first quarter of this year, NCM811 material has present a serious short supplyIndustry data show that in the first quarter of 2018, the domestic ternary material production 31670 tons, up 64.

Nearly period of time, new energy vehicles under the support of policy in major cities nationwide, upstream industry is also under a lot of goodTop battery factories are the leading global production factories in China.

The car battery selection of, mainly according to the following standards, as shown in figure 2General hybrid electric vehicle (HEV) use is higher than the power of the battery, and pure electric vehicles (EV) is higher than the energy of battery.

From the lithium battery monomer batteries to automation module to PACK in the whole process of production line, assembly line automation is decided to product quality and production efficiency of the key factorsAt present, the domestic battery just the beginning of the module of automation, due to the battery PACK standard is not unified, in PACK link automated manufacturing is almost a blank, in order to achieve further promote the efficiency of production and cost down, must promote the application of automated production equipment.

The lithium battery with the development of new energy electric vehicles, more and more people are paying attention to this, lithium battery waterproof glue and lithium battery of insulation adhesive protection there is obvious difference between the glue, lithium battery waterproof glue can use many kinds of products are waterproof, including poor electrical conductivity, the solvent can be, the protective layerLithium battery insulation glue adhesion, can be a local waterproof, do not need to colloid into one layer.