HouYou Ploymer Cell Manufacturer

As one of the current battery types for electric vehicles, LiFePO4 batteries are characterized by relatively stable thermal stability, low production costs, and long service life. However, its low temperature resistance is very low. In the case of -10 ℃, although the battery can be used normally, the charging efficiency will be greatly reduced. Regarding the statement that LiFePO4 is too bad in winter, in fact, the LiFePO4 battery will attenuate more than the ternary lithium battery at low temperature in winter, but it is not large. Under the same conditions, if the vehicle equipped with ternary lithium battery will shrink by 25% due to low temperature in winter, the conversion of LiFePO4 is likely to reach 30%. The gap between the two is nothing more than that, and it is not as big as some people on the Internet have rumoured. In addition, this gap is not entirely determined by the natural properties of the battery. At present, the vast majority of electric vehicles on...

Compared with traditional mobile phones, smart phones are updated faster, with more and more functions such as high-definition large screens, high-pixel cameras, face recognition, etc., and the promotion and application of 4G, coupled with the improvement of people's disposable income, the shipment of smart phones continues to grow. According to statistics from Statista, global smartphone shipments increased from 305 million units in 2010 to 1.473 billion units in 2016. With the continuous increase in the penetration rate of smartphones, the significant improvement in the overall performance of smartphones has made the replacement cycle continue to extend. After 2017, the global smartphone has entered a stage of steady development. In the future, the development of technologies such as 5G will accelerate the replacement speed of smartphone products and enhance the replacement demand of downstream consumer terminals. At the 2019 Mobile World Congress, domestic mobile...

The tab is a raw material for lithium-ion polymer battery products. For example, mobile phone batteries, Bluetooth batteries, laptop batteries, etc. used in our lives all need to use tabs. The battery is divided into positive and negative poles, and the pole ear is the metal conductor that leads the positive and negative poles from the battery core. In layman's terms, the ears of the positive and negative poles of the battery are the contact points during charging and discharging. This contact point is not the copper sheet we see on the outside of the battery, but a connection inside the battery. The battery tabs are divided into three materials. The positive electrode of the battery is made of aluminum (Al) material, the negative electrode is made of nickel (Ni) material, and the negative electrode is also made of nickel-plated copper (Ni—Cu) material. They are all composited by film and metal tape. made. The film is the insulating part on the tab. Its function is...

In the winter, the cruising range of electric vehicles is much less than that indicated by the manufacturer, and some even reach more than one-third. Why is this? This starts with the principle of electric vehicle batteries. When electric vehicles are parked outdoors in winter, the low temperature will directly affect the activity of lithium batteries, and restoring battery activity requires electricity to heat the battery to restore the temperature, and this part of the consumed electricity is the “shrinking” part of the battery life. Generally speaking, the vast majority of electric vehicles and even electronic digital products on the market currently use lithium-ion batteries, which are often referred to as lithium batteries. Common electric vehicle lithium batteries are mainly lithium iron phosphate, lithium manganate and ternary lithium batteries . Like common batteries, lithium batteries are also divided into positive and negative poles, in which all lithium ion...

Ternary lithium-ion batteries have excellent electrochemical properties such as high energy density, good safety and stability, support for high-rate discharge, and moderate cost advantages. The battery field has been widely used. Ternary material lithium-ion batteries are generally divided into ternary polymer lithium-ion batteries, ternary power lithium-ion batteries, and ternary low-temperature lithium-ion batteries . 1. Ternary polymer lithium-ion battery Ternary polymer lithium ion battery refers to a lithium ion battery whose positive electrode material uses nickel cobalt lithium manganate ternary positive electrode material and uses gel polymer electrolyte. As a transport medium for ion movement, electrolyte is generally composed of solvent and lithium salt. The electrolyte of lithium secondary battery mainly includes liquid electrolyte, ionic liquid electrolyte, solid polymer electrolyte and gel polymer electrolyte. Its greatest advantage is the high mechanical ...