With the world's demand for new energy, new energy has become the world's future mainstream energy gradually,as well as China's future mainstream energy. With the development of science and technology in China, lithium battery, as a new energy, has approached People's Daily life gradually and been used more and more widely. In the future, it will replace oil and make great contributions to the sustainable development and environmental protection of the world. Next, we make an introduction about our product— lithium battery that you can know more about our products.
Our cells are mainly supplied by SAMSUNG, LG, LISHEN and other well-known brands,therefore,our products with high quality and safe. Our cells mainly includes 3.85V high pressure lithium cobalt cell, 3.7V lithium cobalt cell, 3.63V ternary lithium cell, 3.2V lithium iron phosphate cell. Their shapes are cylindrical, square and irregular and operating temperature in normal temperature -20 ~ 65℃, high temperature -20 ~ 80℃, low temperature -40 ~ 65℃ and wide temperature -40 ~ 80℃.
There are three uses of lithium battery: new energy vehicles, energy storage and consumer electronics. Our company does not produce lithium battery for new energy automobile, but we can produce lithium battery for other uses. In addition to our existing lithium battery products, our engineers can design battery according to the needs or requirements of our customers. There are some differences between lithium battery. The following is a more detailed classification.
Lithium battery classification
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Classified by electrolyte morphology |
◆Liquid lithium battery ◆ href="javascript:;" Polymer lithium battery |
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Classified by cathode material |
◆Lithium cobaltate battery ◆Ternary lithium battery ◆ href="javascript:;" Lithium iron phosphate battery |
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Classified by application domain |
◆ href="javascript:;" Energy storage battery ◆ href="javascript:;" Power battery ◆Consumer battery |
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Classified by outer packing |
◆Aluminum shell lithium battery ◆Steel shell lithium battery ◆Soft pack lithium battery |
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Classification by form |
◆Square battery ◆Cylindrical battery |
Lithium cobaltate is the first generation of commercial cathode material, which has been gradually modified and improved in the decades of development. It can be considered as the most mature cathode material for lithium ion battery. Lithium cobalt oxide has the advantages of high discharge platform, high specific capacity, good cycling performance, simple synthesis process and so on. Lithium cobalt oxide has a place in smaller battery, where bulk density is more important. Lithium cobaltate is still the best choice for small lithium battery.
Lithium iron phosphate is one of the cathode materials that attracts wide attention at present. Its main characteristics are free of harmful elements, low cost, good safety, and cycle life up to 10,000 times. These characteristics make lithium iron phosphate material quickly become a research hotspot, and lithium iron phosphate battery have been widely used in the field of electric vehicles.
Ternary material is the common name of lithium nickel cobalt manganese oxide with a very similar structure to lithium cobalt acid. This material can be balanced and regulated in terms of specific energy, recycling, safety and cost. The increase of nickel content will increase the material capacity, but will make the cycle performance worse. The presence of cobalt can make the structure of the material more stable, but the high content will reduce the capacity. The presence of manganese can reduce the cost and improve the safety performance, but the high content will destroy the layered structure of the material. Therefore, it is the focus of ternary material research and development to find the proportional relationship between the three materials to optimize the comprehensive performance.
In general, lithium cobalt acid is suitable for small lithium battery, lithium iron phosphate battery is safe, long life, high temperature resistance. Ternary lithium battery is light in weight, high in charging efficiency, low temperature resistance, so they all have their own characteristics.
Our products are divided into application areas: energy storage battery, power battery and consumer battery.
The overall structure of lithium battery is similar, as shown in the figure below. It is composed of four parts: positive electrode material, negative electrode material, diaphragm and electrolyte. The difference is mainly reflected in the performance.
Consumer lithium-ion batteries are mainly used in mobile phones, portable computers, digital cameras, digital cameras, mobile power supplies, electric toys and other consumer electronic products, namely the so-called "3C products" lithium battery cells and modules, the main form is divided into cylindrical, square and soft pack battery. Due to the high volume requirement of consumer lithium battery, the energy density is high, lithium cobalt oxide and ternary materials as the positive electrode.
Power battery and energy storage battery also have different requirements for energy density and other aspects. At present, lithium iron phosphate and ternary lithium battery are used in power battery and energy storage battery.
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power battery |
energy storage battery |
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application |
Mainly used in electric vehicles, electric bicycles and other electric tools | Mainly used in peak and frequency modulation power auxiliary services, renewable energy grid connection, micro grid, C and other fields |
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performance requirement |
As a mobile power supply, it has high requirements for energy density and power density | Most energy storage devices do not need to be moved, so energy storage lithium battery do not have direct requirements for energy density. Power density: different energy storage scenarios have different requirements; In terms of battery materials, attention should be paid to expansion rate, energy density, performance uniformity of electrode materials, etc. in order to pursue long cycle life and low cost of the entire energy storage equipment. |
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cycle life |
1000-2000 times |
3500 times |
Our products are divided into aluminum shell lithium battery, steel shell lithium battery and soft pack lithium battery by outer packing material.
As the soft pack lithium battery uses aluminum-plastic film packaging, the soft pack lithium battery generally will not explode in the case of safety risks, only bulge or crack. About 20% lighter than aluminum shell battery, and about 5~10% higher capacity than aluminum shell battery. In addition, soft pack lithium battery have low internal resistance and longer cycle life, more suitable for portable , require high space or thickness applications, such as 3C consumer electronics.
Aluminum shell lithium battery has high specific strength, specific modulus, fracture toughness, fatigue strength and corrosion resistance stability. Aluminum alloy material low density characteristics, non-magnetic, stable alloy at low temperature than the magnetic field resistance is small, good air tightness and the induced radiation decays rapidly, so it has been widely used in aviation, aerospace, high-speed trains, machinery manufacturing, transportation and chemical industry.
The physical stability and pressure resistance of steel lithium battery is much higher than that of aluminum shell material battery. After our company's designers design the structure optimized, the safety device has been placed inside the battery internal, and the safety of steel shell column lithium battery has reached a new height.
After the above introduction, you should have a deep understanding of our lithium battery. Expect you to contact us as soon as possible, we use the strength and action to tell you that we are trustworthy, our products and services will make you very satisfied. Look forward to cooperating with you, thank you!
Post time: Dec-05-2022