Why does Toyota avoid lithium-ion batteries, and why does it love power nickel-metal hydride batteries?

Why does Toyota avoid lithium-ion batteries and why it loves power nickel-metal hydride batteries? Power nickel-metal hydride batteries are another mainstream electric vehicle power battery besides lithium batteries. However, in many first-line electric vehicles Under the general environment of brand car companies choosing lithium batteries, Toyota still insists on using nickel-metal hydride power batteries. What is the reason? Let's find out now. Why does Toyota avoid lithium-ion batteries, and why does it love power nickel-hydrogen batteries? If hydrogen fuel power batteries, lithium-ion batteries, and fluorine-ion solid-state batteries are only technical reserve products, then Toyota’s only favorite power lithium battery is not Ni-MH batteries are none other. This is not unrelated to Toyota being a Japanese company. It is well known that Japan is relatively scarce in natural resources, especially environmental awareness is at the forefront, and the advantage of Ni-MH batteries is that the recycling and degradation of lithium-ion batteries is more environmentally friendly. Although the energy storage density of nickel-hydrogen batteries is lower than that of lithium-ion batteries, hybrid technology can release energy with the help of engines. Energy density is not the most important consideration, and the service life of nickel-hydrogen batteries is better than that of lithium-ion batteries. Since the research and development and production of nickel-hydrogen battery products have exceeded 20 years, quality control and quality have been well controlled. In addition, the important components of nickel-metal hydride batteries are: rare earth and nickel, both of which have high recycling value. Using water as the electrolyte solution is not easy to pollute the environment and is very environmentally friendly. Secondly, nickel-metal hydride batteries have good safety. Because the electrolyte of nickel-metal hydride batteries is an aqueous solution, it is not easy to burn under abnormal conditions such as short circuits. Toyota is not without lithium-ion battery technology reserves, but because Toyota has not made breakthroughs in lithium-ion battery research. Facts have proved that Toyota is correct in not radically adopting lithium-ion batteries. At this stage, there are not a few safety accidents caused by lithium-ion batteries in new energy vehicles. Why does Toyota love Ni-MH batteries for power? ●The electrolyte used in mature and safe nickel-metal hydride batteries is a non-flammable aqueous solution, and its specific heat capacity and electrolyte evaporation are relatively high, but the energy density is relatively low, which means that even if short-circuit and other abnormal conditions occur, it will not cause combustion. Ni-MH batteries are currently the most valuable batteries for commercial applications. However, Japanese companies have high and cautious requirements for mature and safe technology, which has led Toyota to always use nickel-metal hydride batteries. ●Low production requirements are due to the long development time of nickel-hydrogen batteries. Even if the energy density is not as powerful as lithium-ion batteries, the requirements of safety protection and temperature control during the production process of nickel-hydrogen batteries are compared with those of lithium-ion batteries. The battery is much lower. This is to ensure the quality while controlling the cost, why not do it? ●Excellent low-temperature performance Lithium-ion batteries use organic electrolyte solutions, which will greatly reduce battery performance and life expectancy in low-temperature environments. The performance is already deviated at zero degrees, let alone lower temperatures. Many of Toyota's hybrid vehicles are sold in low temperatures. Take the northern part of our country as an example. The nickel-metal hydride battery uses an alkaline electrolyte solution, and the operating temperature can be as low as minus 40 degrees. In comparison, the nickel-metal hydride battery will be better. ●High recycling value Ni-MH batteries do not contain highly toxic substances and are relatively environmentally friendly. Its important components are nickel and rare earths, which are difficult to recover and have high recovery value. It can basically be recycled and reused. It is of great significance for sustainable development. Summary: In summary, considering battery safety, practicability, economy and environmental protection, it is more appropriate to choose Ni-MH batteries, which is why Ni-MH batteries will become the first choice for Toyota hybrid models. In the short term, Toyota will still stick to the Ni-MH battery route; in the medium and long term, only the key technology of lithium-ion batteries can make breakthroughs in order to switch. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the key technologies of mobile lithium-ion battery energy storage systems that need to be solved urgently?