Technical Knowledge

With the vigorous development of the new energy vehicle industry, the related industrial chain has also created more new space for innovation and entrepreneurship. Anhui Udan Technology Co., Ltd. seized the opportunity and realized the application coverage of the new energy power transportation field in only 20 months after its establishment. Among them, the company's leader Peng Yongjun played a key role. Big data makes new energy vehicle battery management smarter In an electric vehicle, the core compon

Hydrogen fuel cell vehicles are becoming a new round of air and hot spots in the automotive industry. After 2017, known as the "first year of hydrogen fuel cell vehicles", all kinds of capital and startups are eager to enter this field. Data shows that by the end of 2017, the number of commercial orders for hydrogen fuel cell vehicles in my country has exceeded 1,000, and there are more than 200 hydrogen fuel cell vehicles used for demonstration operations. However, at the 2018 China International Hydr

Gree Group terminated the acquisition of Zhuhai Yinlong, and Gree's plan to "cross-border car manufacturing" has now come to an end. At the beginning, Gree's proposed acquisition of Yinlong was as high as 13 billion yuan. What was it that attracted Gree to pay such a high price? It is reported that Dong Mingzhu, chairman of Gree Electric, values ​​Yinlong's core competitiveness - lithium titanate battery technology. Where does Yinlong lithium titanate battery technology come from? Can it be

Recently, Japan's New Energy Industry Technology Comprehensive Development Agency recently announced that some companies and academic institutions in the country will jointly develop the next-generation electric vehicle all-solid-state lithium battery in the next five years, and strive to apply it to the new energy vehicle industry as soon as possible.(Lithium - Ion Battery Equipment) The project is expected to have a total investment of 10 billion yen (about 580 million yuan), and 23 automotive, battery and

The commercial application of proton exchange membrane fuel cells is limited by the sluggish oxygen reduction kinetics at the cathode. At present, the most effective strategy to improve the catalytic activity of oxygen reduction is to optimize the bonding energy between the catalyst and the oxygen-containing species by alloying the transition metal M (M=Fe, Co, Ni, Cu, etc.) with the noble metal Pt. Enhanced catalytic activity for oxygen reduction. Recent studies have shown that interfacial catalysts can provide

The poor consistency of lithium battery cells has plagued the design of lithium battery packs for a long time. The consistency we are talking about here not only refers to parameters such as capacity and voltage in the traditional sense, but also includes the capacity decay speed of single cells, Factors such as the decay rate of internal resistance and the temperature distribution of the battery pack. Ideally, lithium batteries from the same batch should have the same electrochemical performance, but in practice t

Xinhua News Agency, Washington, March 1. Chinese scientists have developed a lithium battery that can be used at minus 70 degrees Celsius. It is expected to be used in extremely cold regions of the earth and even in outer space in the future. Research published in the latest issue of the American energy academic journal "Joule" shows that the new battery developed by Xia Yongyao's team at Fudan University in China uses ethyl acetate, which has a low freezing point and can conduct electricity at ext

This year's "two sessions", Li Xiangbin, an "old acquaintance" of Hefei Public Transport, who was re-elected as the representative, focused on the field of new energy public transport. As an important position for new energy vehicles in the country, Hefei Bus has always been a signboard. "But there are still shortcomings in battery life, and the country should speed up research and development." Hefei New Energy Electric Bus started early. As early as January 23, 2010, Hefei Bus

It is reported that graphene has a low light absorption rate. Recently, researchers at the University of Illinois at Urbana-Champaign have confirmed through experiments that changing the stress on the surface of graphene can produce a "wrinkled" structure on the surface and increase the areal density, which can improve graphite. The light absorption of graphene is of great significance for the application of graphene in the field of optoelectronics. Of course, this research method is not limited to gra