Product Details
Lithium batteries are a type of batteries that use lithium metal or lithium alloy as the positive/negative electrode material and use a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M. S. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream.
Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate, and performance-price ratio are superior to those of lithium-ion batteries.
Conductive coating is also called pre-coating. In the lithium battery industry, it usually refers to a conductive coating on the surface of the positive electrode current collector-aluminum foil. The aluminum foil coated with conductive coating is called pre-coated aluminum foil or simply coated. Layer aluminum foil. The conductive coating can effectively improve the adhesion of the pole piece in the lithium battery, reduce the amount of binder used, and also significantly improve the electrical performance of the battery. Its earliest experiments in batteries can be traced back to the 1970s, and with the development of the new energy industry, especially the development of lithium iron phosphate batteries, it has become a hot new technology or new material in the industry.
Advantage
1. The energy is relatively high. With high storage energy density, it has reached 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries.
2. Long service life, the service life can reach more than 6 years, 1C (100% DOD) charge and discharge of the battery with lithium iron phosphate as the positive electrode, there is a record that can be used 10,000 times.
3. The rated voltage is high (the single working voltage is 3.7V or 3.2V), which is approximately equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, which is convenient to form a battery power pack; lithium batteries can pass a new type of lithium battery voltage regulator The technology adjusts the voltage to 3.0V to suit the use of small appliances.
4. It has high power tolerance, and the lithium iron phosphate lithium ion battery used in electric vehicles can reach 15-30C charge and discharge capacity, which is convenient for high-intensity start-up acceleration.
5. The self-discharge rate is very low, which is one of the most prominent advantages of the battery. Generally, it can be less than 1%/month, which is less than 1/20 of the nickel-hydrogen battery.
6. Light weight, the weight is about 1/6-1/5 of the lead-acid product under the same volume.
7. High and low temperature adaptability, it can be used in the environment of -20℃--60℃, after the process treatment, it can be used in the environment of -45℃.
8. Green and environmental protection, regardless of production, use or scrap, it does not contain or produce any lead, mercury, cadmium and other toxic and harmful heavy metal elements and substances.
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