Buffett witnesses the signing of the world's first commercial iron-lithium battery MW-class energy storage power station On September 27, 2010, BYD and China Southern Power Grid Corporation formally signed a cooperation framework agreement for MW-class energy storage power stations VIPs such as Buffett and Munger witnessed this historic commemorative signing moment.

Lithium battery is a kind of battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution It is the battery with the highest energy density and the best comprehensive performance in secondary battery technology.

Recently, Dangsheng Technology said that the company has already achieved mass production of high-nickel 811 cathode materials, and its 811 cathode materials are mainly used in new energy vehicle power batteries At the beginning of 2018, Guoxuan Hi-Tech said that it has developed a ternary 811 material soft-packed battery with an energy density of 302 wh/kg.

The factors that affect the safe and effective charging of lithium-ion batteries are voltage, current and temperature Therefore, these three factors must be taken care of in the design of the charger.

With the gradual decline of subsidies, increasing energy density and reducing costs have become the focus of competition for power battery companies The replacement of lithium iron phosphate by ternary materials has also become a new trend in the evolution of current power battery technology routes.

Lithium battery materials are mainly divided into: Carbon negative material The negative electrode materials that have been actually used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, intermediate phase carbon microspheres, petroleum Coke, carbon fiber, and pyrolysis resin carbon and etc Tin base negative electrode material Tin negative electrode materials can be divided into tin oxides and tin composite oxides.

"Oh, my mobile phone is just full of electricity How do I shut it down when I go out for a while?" Yes, in the winter in the north, is this scene very common and similar? Regarding the fact that the mobile phone automatically shuts down the pot in a low temperature environment, it may be necessary to have the lithium battery back on the back.

With the Advancement of policies and the stimulation of downstream demand, listed companies in the power battery industry have increased investment in production capacity Statistics show that China's power battery production capacity is 101 GWh at the end of 2016, and it is expected that the total planned production capacity will reach 230 GWh by the end of 2017, an increase of 127 % year-on-year, and power battery production capacity will be concentrated.

A "lithium battery" is a type of battery using a lithium metal or a lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution Lithium metal batteries were first proposed and studied by Gilbert N.

In the process of lithium ion battery production, electrode manufacturing belongs to the previous stage and occupies an important position in the entire process The quality of the electrode is related to the middle assembly process of the lithium battery, and it also affects the electrochemical performance of the posterior segment and the lithium battery.