As the popularization of new energy vehicles, the safety of power battery has always been a hot topic Especially recent new energy vehicles on fire incident make people deeply be worried for the safety of the power battery.

As the centre of the core of the global car market shifts towards electric cars, a growing number of electric vehicles are on the road At the same time, the demand of charging pile also increases accordingly.

With the policy subsidy tilting towards high energy density and the cost pressure caused by the increase of cobalt price, the power battery enterprises begin to lay out to improve the battery energy ratio from the perspective of reducing cobalt contentIn the pursuit of higher energy density of power battery, tesla has always been to lead the domestic automakers.

Nickel-metal hydride battery (NIMH) is a nickel-cadmium battery (NiCd battery) It replaces cadmium (Cd) with a metal that can absorb hydrogen (rare earth alloy or tini alloy).

When the MI mobile phone is charged 90%, the lithium battery does not have a memory effect You can charge as you want, don’t have to wait until you use the automatic shutdown to charge.

Principle of lithium titanate battery The lithium titanate battery is composed of a positive and negative electrode plate (the positive electrode active material is ternary lithium, the negative electrode is lithium titanate), a separator, an electrolyte, a tab, and a stainless steel (aluminum alloy) outer casing The positive and negative plates are the areas of electrochemical reaction.

At present, the development of power lithium batteries is undergoing a revolution Before 2017, the market chose lithium iron phosphate battery as the mainstream of technology, and the demand for battery energy density of new energy vehicles is a process of continuous improvement, and the industry will continue to change choices.

The capacity of alkaline batteries is generally 5 to 7 times that of zinc-manganese batteries; Compared with alkaline batteries, lithium batteries have similar capacity But lithium batteries have more capacity than alkaline batteries in terms of volume.

Pure electric vehicles are increasingly becoming one of the options for many people to travel, and the emergence of new electric vehicle companies is overwhelming, which leads to one thing that must happen: the demand for raw materials for lithium-ion battery packs used in pure electric vehicles will rise In addition, although China's lithium resources are also rich, the current amount of mining is not large enough, battery -grade lithium carbonate, high-purity lithium carbonate, etc.

Core view of lithium battery industry Key assumption: industry supply and demand in the medium term to maintain structural excess, lithium battery leading expansion is still determined 1 Domestic demand: It is estimated that there will be 3 million domestic electric vehicles in 2020, corresponding to the demand for power lithium batteries of 120GWh, the new production capacity will reach 87GWh, and the equipment demand will exceed 26 billion Yuan.