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The development of high-performance power batteries is one of the important measures to promote electric vehicles. Recently, the reporter learned from the second quarter regular press conference of the Chinese Academy of Sciences that the energy density of a variety of power battery cells developed by the Chinese Academy of Sciences has reached more than 300Wh/kg, ranking the world's advanced level; my country's power lithium batteries have entered the core technology. In the stage of large-scale applicatio

1. Lithium batteries are usually divided into two categories according to internal materials: Lithium metal battery: Lithium metal battery generally uses manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and uses a non-aqueous electrolyte solution. Lithium-ion batteries: Lithium-ion batteries generally use lithium alloy metal oxides as positive electrode materials, graphite as negative electrode materials, and use non-aqueous electrol

As fuel cell electric passenger vehicles enter the market, many consumers believe that fuel cells are only used in cars. In fact, fuel cell electric passenger vehicles are probably one of the toughest markets to break right now, and fuel cells can scale to meet many different energy conversion or power needs. Fuel cells are proving to be a versatile technology from primary stationary power and cogeneration applications, to powering cell phones and laptops.(Lithium - Ion Battery Equipment) There are already three

Recently, researchers at Linköping University in Sweden have successfully developed a new type of fuel cell using lignin from trees as a raw material. Unlike batteries that use small molecules such as methanol and ethanol as fuel, this process does not generate carbon dioxide, not only is the raw material green and environmentally friendly, but also the product achieves zero carbon emissions. Lignin is an important structural material for plants and algae. It is common in bark or wood and is one of the by-p

Phased progress has been made in energy density solid-state lithium batteries. In terms of industrialization demonstration of high-energy-density, high-safety deep-sea solid-state lithium batteries, the company has conquered the key core technologies of deep-sea long-endurance power supplies, and has achieved the 11,000-meter pressure chamber test. And the whole deep-sea demonstration application, boosting the national deep-sea power supply to a new height.（Lithium - Ion Battery Equipment） The fire accidents of

The University of Bologna in Italy released news that after 8 years of hard work, researchers at the school have developed a new semi-solid oxygen flow lithium battery NESSOX. With an energy density of up to 1 MWh/ton, it can be recharged in minutes by replacing the liquid electrolyte inside the battery, just like a car "refueling". The battery uses a new type of liquid electrolyte, which can effectively inhibit the formation of substances that cause battery failure and maintain stable battery performance

Not long ago, Zhao Zhongwei, deputy dean of the School of Metallurgy and Environment of Central South University, and his team "packed" a container full of "black technology" equipment, and "tugged a box with a port" from Changsha, Hunan to "Golmud," Qinghai. A huge "black box" container with several water pipes that can "turn decay into magic". The local salt lake brine with high "magnesium-to-lithium ratio" entering the "black box"

EnergyTrend, a new energy research brand under TrendForce, said in a report that, under the influence of China's new energy policy, the demand for power batteries continued to grow, resulting in a shortage of cylindrical lithium batteries for IT. With the market adjustment, the current tight supply situation has been gradually eased. The latest lithium battery quotation shows that the price increase of cylindrical lithium battery in the second quarter is about 1~4%. With the expansion of production capacity,

The primary problem of BMS is security, which needs to have: 1) Overcharge protection, that is, the charging needs to be terminated in time when the voltage exceeds the standard. 2) Over-discharge protection, that is, the discharge is terminated when the voltage of any cell in the group is lower than the over-discharge threshold. 3) Over-current and short-circuit protection, the main function is that the output can be automatically turned off and enter the self-locking state when excessive discharge curren