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According to the Korea Institute of Science and Technology (KIST), the energy fusion research group of the institute has successfully developed a new type of nanocomposite (tin fluoride SnF2) and carbon-based anode materials for sodium-ion batteries. The findings were published in the journal NanoEnergy in the field of nanotechnology. By adjusting the manufacturing environment, the research group made a sealed nanocomposite with a thicker carbon layer, mixed SnF2 and highly conductive acetylene under inert condi

High-energy-density lithium-ion batteries are a key research and development direction in my country, and also a disruptive change in the field of new energy. my country proposed in the "13th Five-Year" new energy vehicle pilot project "High Specific Energy Lithium-ion Battery Technology", a common key technology research project, that by 2020, the battery cell energy density ≥ 300, the cycle life ≥ 1500 times, the cost of ≤0.8 yuan/Wh, the safety performance meets the requirements of t

Some time ago, Bill Ford, executive chairman of Ford Motor Company, announced the next stage of its development strategy in China, the China 2025 Plan. On the same day, GM held a 2017 GM China "Explore Experience of Electrification Technology" event in Shanghai. The two fuel car companies announced the transition to electrification, and two more veterans were added to the new energy electric vehicle force. Under the influence of the decline of financial subsidies and the double-point policy, behind the pr

We all know that there are four major processes in vehicle manufacturing, namely: stamping, welding, spraying and final assembly. According to the author's professional experience, the author believes that the power battery PACK also has four major processes. They are: 1) Assembly process; 2) Air tightness testing process; 3) Software flashing process; 4) Electrical performance testing process; The following briefly introduces the four major manufacturing processes of power battery PACK. 1. As

The lithium battery protection board is the charge and discharge protection for the series-connected lithium battery pack; when fully charged, it can ensure that the voltage difference between the individual cells is less than the set value (generally ±20mV), and realize the equal charge of the individual cells of the battery pack. , effectively improving the charging effect in the series charging mode; at the same time, it detects the overvoltage, undervoltage, overcurrent, short circuit, and overtemperatur

The pursuit of zero-carbon emission vehicles in advanced countries around the world is becoming more and more popular, and the demand for new energy vehicle specifications has become increasingly clear. However, the current sluggish development of lithium battery technology restricts the cruising range and safety, making the upgrade of new energy vehicles slow. Recently The shocking battery fire accident of new energy vehicles has occurred again and again, forcing BMW, Toyota and other international car manufacture

On September 11, Germany's "Automobile Weekly" reported that Volkswagen announced a large-scale electric vehicle development plan "RoadmapE". By 2030, all Volkswagen models will have electric versions, investing 50 billion euros in electric vehicle batteries and 20 billion euros in electric vehicles. car. It is not new for OEMs to invest in batteries, and Volkswagen CEO Murren also said that they are already planning the next generation of electric vehicle batteries, solid-state batteries

All-solid-state lithium-ion batteries use solid-state electrolytes to replace traditional organic liquid electrolytes, which are expected to fundamentally solve the problem of battery safety. They are ideal chemical power sources for electric vehicles and large-scale energy storage. In order to achieve large capacity and long life, and thus promote the practical application of all-solid-state lithium-ion batteries, the development and performance optimization of key battery materials are urgent, including the prepa

lithium battery A primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution, which is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries. The inventor of the lithium battery was Edison. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. Wi