Breakthrough and mass production of a new high-voltage lithium manganate technology

With the rapid development of the new energy industry, lithium-ion batteries have increasingly higher requirements for the energy density of cathode materials . However, the gram capacity is close to the theoretical value and there is not much room for improvement. Therefore, expanding the working voltage range of cathode materials is the key to improving the electrode materials. One of the effective methods of energy density.

Since there is no breakthrough in the withstand voltage value of the electrolyte, the voltage of the cathode material can only be limited to 4.4-4.6V. 5V lithium nickel manganese oxide cannot yet be used in the industrialization of lithium batteries , and power battery packs are sensitive to high voltages. Urgent needs. Therefore, major cathode material research and development institutions are exploring breakthroughs. At this time, spinel-type lithium manganate stands out due to its high operating voltage, excellent low-temperature performance, good safety performance and high cost performance.

Xinxiang Zhongtian New Energy recently received exciting news that its new product, high-voltage, high-rate, high-temperature-resistant, long-life lithium manganate, was successfully developed and mass-produced. This product adopts a large monocrystalline structure and has been verified by many well-known battery manufacturers. Its comprehensive performance meets the design requirements. The capacity of 0.2C gram is 110mAh/g under 4.4V, the high current 22C discharge capacity retention rate is still 97%, the 7-day capacity retention rate at 55℃ is 94%, the recovery rate is 97%, and the normal temperature cycle can reach 4000 cycles, -20℃ The discharge capacity retention rate is 98%.

According to Mr. Zheng of Zhongtian New Energy R&D Department, this product is mainly used in:

Class A00 lithium-ion batteries for electric vehicles , forklifts, ships and special equipment;

Combined with 4.4V high-voltage lithium cobalt oxide, it is used in lithium-ion batteries for high-end digital devices, such as mobile phones and notebooks;

Home energy storage and various wind, solar, and electric energy storage fields in extremely cold areas;

Battery replacement for engineering vehicles;

The cost reduction solution is an excellent companion for ternary, lithium cobalt oxide, and lithium-rich manganese-based materials.

About Zhongtian New Energy

Zhongtian New Energy was established in September 2008. It has been 14 years since its establishment. It only focuses on the lithium manganate industry. In November 2016, Zhongtian New Energy was listed on the "New Third Board".

Zhongtian New Energy currently has 80 employees, a professional technical team composed of doctors, masters, and engineers, advanced and complete testing equipment, a strict and standardized quality management system, and a scientific and standardized management system, and has successfully passed ISO9001-2015 , IATF16949: 2016 quality management system certification, laying a solid foundation for the long-term development of the enterprise.

In 2019, Zhongtian New Energy was awarded the Henan Province Science and Technology Small and Medium-sized Enterprise Certificate by the Henan Provincial Department of Science and Technology. In the same year, it was recognized as a high-tech enterprise. In 2022, it will be recognized as a national-level professional and new "little giant".

In order to improve the performance of lithium manganate, Zhongtian New Energy participated in the research and development of the raw material trimanganese tetroxide and the formulation of the industry standard YB/T 4736-2019.