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Introduction of research team and research direction of lithium battery

Classification:Company News Release date:2020-01-04 406 Views

  Taizhou Hongwei Lithium Industry Co., Ltd. distributes a complete range of lithium belts, lithium ingots, lithium particles, lithium aluminum alloy belts, and anhydrous lithium chloride at reasonable prices. Taizhou Hongwei Lithium Industry Co., Ltd. has strong strength, respects credit, abides by contracts, guarantees product quality, and has won the trust of customers with its multi-variety operating characteristics and the principle of small profits but quick turnover.

  Muchi technology plays an important role in the sustainable development of society's clean energy. Compared with traditional nickel-metal hydride batteries and lead-acid batteries, lithium-ion batteries have been widely used in the field of energy storage and conversion due to their high energy density, no memory effect, and low environmental pollution. Today, lithium-ion batteries have been used as power batteries in electric vehicles such as Tesla and BYD, and have a huge market share. It is expected that the global lithium-ion battery market size will reach 450 billion yuan in 2020.

  Lithium-ion batteries were first developed by Sony Corporation in Japan in 1990. Conventional lithium-ion batteries are rechargeable batteries that use lithium cobaltate (LiCoO2) as the anode material, graphite (C) as the anode material, and esters as the electrolyte.

  However, the actual specific capacity of the lithium cobaltate material is only about 150mAh / g, and the lower capacity limits the increase in the energy density of the single-cell lithium-ion battery, only about 150Wh / kg. The use of a lower energy density lithium-ion battery as the power battery of the car prevents the electric vehicle from having the expected mileage. For example, Tesla's latest electric vehicle ModelX, its battery pack is composed of more than 7,000 18650 lithium-ion batteries, weighing about one ton. The heavy battery pack increases the weight of the car and reduces the mileage of the car. The mileage after a full charge is about 400 kilometers. Therefore, the development of high energy density lithium-ion batteries is particularly important.

  At present, research on high-energy density lithium-ion batteries has shifted from its infancy to substantial development. The research field mainly focuses on the positive electrode materials and negative electrode materials of batteries. In the area of positive electrodes, lithium-rich anode materials, high-nickel anode materials, and sulfur anode materials are mainly studied. Research on anodes is mainly focused on tin anodes, silicon anodes and lithium metal anodes.

  At present, there are also many teams dedicated to the research of solid electrolytes, mainly to solve the safety hazards caused by the flammability of liquid electrolytes. In addition, in the study of lithium metal anodes, the introduction and use of solid electrolytes can suppress the growth of lithium dendrites.

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