Battery Lab Equipment,Lithium Battery Separator,Battery Testing Machine

For lithium ion batteries, the cathode materials that can be used should meet the characteristics of large reversible capacity, high potential and stability, non-toxic and low production cost. At present, lithium iron phosphate is the most common cathode material for lithium ion batteries. However, LiFePO4 has poor electrical conductivity and low lithium ion mobility. If LiFePO4 material is combined with graphene, its conductivity and multiplier performance can be improved theoretically.

Introduction to the graphene materials
Graphene Oxide is a two-dimensional planar nanomaterial composed of carbon atoms with a hexagonal honeycomb lattice，the c-c bond length is 0.141nm, the theoretical density is about 0.77mg/m2, and the thickness is only about the diameter of a carbon atom. Carbon atoms participate in hybridization in the way of sp2, and electrons can smoothly conduct between layers, so graphene conducts electricity extremely well. It is the material with the smallest resistivity known, which is one of the reasons why graphene has a promising future in batteries.

Metalized Cast Polypropylene (CPP) Films CPP films are transparent cast polypropylene films designed to offer high performance, great appearance and easy converting for flexible packaging and other applications.

The Electrode Coating Machine is the key equipment for the production of lithium battery electrode. Because it directly affects the subsequent rolling operation, and even affects the performance of the entire battery. At present, the mainly lithium battery electrode coating process is: scraper type, roll to roll transfer coating type and a slit extrusion type. General speaking, laboratory equipment adopts the scraper type, the 3C battery adopts the roll to roll transfer coating type, and the power battery adopts the slit extrusion type.

The main components of lithium ion battery include cathode, cathode, electrolyte, membrane, etc. The storage and release of lithium ion energy is realized in the form of REDOX reaction of electrode materials, and the cathode active material is the most critical core material of lithium ion battery.
Professor GOODENOUGH, the father of lithium battery, has made a great contribution to the research of lithium battery cathode materials. In 1980, while working at the university of Oxford in the United Kingdom, he discovered that lithium cobalt oxide (LCO) could be used as a lithium cathode. In 1981, he mentioned the feasibility of lithium nickelate (LiNiO2, also known as LNO) as a cathode material in the LCO patent. In 1983, he made his first attempt to use lithium manganate (LMO) as a cathode material for lithium-ion batteries. In 1997, he developed lithium iron phosphate (LiFePO4, or LFP), which is the cathode material of olivine structure. In addition, to solve the problem of unstable properties of lithium nickelate, a large amount of research has been conducted in the area of doping modification by Prof. DAHN from Canada and Prof. Sumika kosuki from Japan. In 1997, toda applied for the first patent of lini1-x-ycoxalyo2 (NCA). In 1999, liu zhaolin and yu aishui et al. from the university of Singapore introduced Mn modification on the basis of lithium ni-co (lini1-x-ycoxmnyo2, namely ternary material and NCM).

Introduction:
Polyvinylidene fluoride binder(PVDF) is currently the most commonly used oil binder in the lithium ion battery industry. It is a non-polar chain polymer binder. It is characterized by strong oxidation resistance, good thermal stability and easy dispersion. N-methylpyrrolidone (NMP) is required as a solvent. This solvent has a high volatilization temperature, has a certain environmental pollution, and is expensive.

1.  Do not install the Desktop Light Fastness Test Chamber unit near other heavy machinery.

The vacuum drying oven is designed for drying heat sensitive, easily decomposable and easily oxidizable materials. It can be filled with an inert gas, which can make some ingredients with complex ingredients dry quickly.
Scope of application:

The lithium-rich manganese-based (xLi[Li1/3-Mn2/3]O2; (1–x) LiMO2, M is a transition metal 0≤x≤1, and the structure is similar to LiCoO2) has a high discharge specific capacity. It is about twice the actual capacity of the cathode material currently used, and is therefore widely studied for lithium battery materials. In addition, since the material contains a large amount of Mn element, it is more environmentally safe and cheaper than LiCoO2 and the ternary material Li[Ni1/3Mn1/3Co1/3]O2. Therefore, xLi[Li1/3-Mn2/3]O2; (1–x) LiMO2 material is considered by many scholars as the ideal material for the next generation of lithium ion battery cathode materials.

As an important component of lithium ion battery, negative electrode material has a direct impact on the energy density, cycle life and safety performance of the battery and other key indicators. Silicon is the anode material of lithium ion battery with the highest specific capacity (4200mAh/g) known at present. However, due to its over 300% volume effect, The silicon electrode material will pulverize during charging and discharging, and flake off from the collector fluid. caused the loss of electrical contact between active matter and active matter, the active matter, and the stream of fluid, and forming a new layer of solid electrolyte layers, which ultimately leads to the deterioration of electrochemical properties. In order to solve this problem, researchers have made a lot of explorations and attempts, among which silicon-carbon composites are very promising materials.

With the pursuit of energy density of battery, the ternary anode materials (generally referred to as layered lithium NCM nickel cobalt manganate materials) have attracted more and more attention. The ternary anode material has the advantages of high specific capacity, good recycling performance and low cost. By increasing the voltage of the battery and the content of nickel in the material, the energy density of the ternary positive electrode material can be effectively improved.
Theoretically, the ternary material itself has the advantage of high voltage. The standard test voltage of the ternary positive electrode material is 4.35v, under which the ordinary ternary material can show excellent cyclic performance. The charging voltage is increased to 4.5v, and the capacity of the symmetrical materials (333 and 442) can reach 190, which is also good for circulation, while 532 is not so good. When the charge reaches 4.6v, the circulability of the ternary material begins to decline, and the flatness becomes more and more serious. At present, it is difficult to find matching electrolyte with high voltage anode material.

You have eight reasons to choose it!

● Without temperature and pressure compensation, the mass flow of gas is measured directly!

The electrolyte of the current commercialized lithium-ion battery is liquid, so it is also called liquid lithium-ion battery. In simple terms, all- solid-state lithium-ion battery refers to the battery structure in which all components are in solid form, replacing the traditional lithium ion battery's liquid electrolyte and diaphragm with solid electrolyte.
Compared with liquid lithium-ion batteries, all-solid electrolyte has the following advantages:

High reactivity exists between electrolyte and positive and negative electrodes, especially at high temperature. To improve the safety of battery, improving the safety of electrolyte is one of the effective methods. The potential safety risks of electrolyte can be effectively solved by adding functional additives, using new lithium salts and using new solvent. According to the different functions of additives, they can be divided into the following: safety protection additives, film forming additives, protection positive electrode additives, stable lithium salt additives, lithium precipitating additives, fluid anti-corrosion additives, and enhancement of infiltration additives.
In order to improve the performance of commercial lithium salts, the researchers have replaced them with atoms and obtained many derivatives. Among them, compounds obtained by substituting atoms with perfluoroalkyl groups have many advantages, such as high flash point, approximate electrical conductivity and enhanced water resistance. In addition, the anionic lithium salts obtained by chelating boron atom with oxygen ligand have high thermal stability.

With the continuous development of the three-element battery technology market, the shortage of Lithium, Cobalt and other resources is brought. In particular, the small supply flexibility of cobalt itself, and if mainstream manufacturers choose the route of NCM622, it will lead to a serious shortage of cobalt supply, which will force the new energy vehicle enterprises to develop towards the route of NCM811.

Since last year, the requirement for energy density of new energy vehicle power batteries has been increasing due to the increasing demand for mileage. Especially in China, the subsidy standard is directly linked to energy density, and the path of ternary material has become the common choice of mainstream battery enterprises. At the same time, with the price rise caused by the shortage of raw materials such as Cobalt metal, high Nickel ternary gradually becomes the development trend of power battery.

An electronic control system has been designed and installed to control and monitor the generator set. Depending on the requirements of the Diesel generator set, one of several different standard control systems may be fitted. Other more specialised systems may be fitted for specific installations in which case separate documentation is provided.These control systems consist of three major components working together:

Control Panel – provides a means of starting and stopping the generator set, monitoring its operation and output and automatically shutting down the generator set in the event of a critical condition arising such as low oil pressure or high engine coolant temperature to prevent major damage to the engine / alternator.

Driven by the core goal of high energy density and high battery life, the penetration rate of pouch battery in the new energy vehicle market is gradually accelerating. It is estimated that 13.4 billion yuan of special equipment needs of pouch battery will be derived by 2020 based on the expansion demand of various battery manufacturers.
As the core technology of pouch battery manufacturing, the lamination machine market has attracted many equipment manufacturers to seize the layout. Traditional brands with deep industry accumulation are accelerating the process improvement, further improving the efficiency of lamination process and the degree of integration automation.

According to China's goal of achieving power battery energy density of 300Wh/kg by 2020, it is inevitable that the material combination form of NCM 811/nca with silicon-carbon anode is adopted.
In the first half of this year, the application of NCM 811/NCA materials in the power battery market gradually increased. As the core equipment technology of high nickel anode materials involves upgrading and adjustment, the production process control is more strict than that of conventional anode materials, which drives the technical upgrade of material equipment manufacturers. In general, the core equipment that high nickel anode materials enterprises need to upgrade and replace mainly includes: furnace, drying equipment, crushing equipment, grinding machine, dehumidification equipment, etc.