Stanford University develops new coating to make lithium metal batteries safer and more durable

researchers at Stanford University and SLAC National Accelerator Laboratory have developed a new coating that will make lightweight metal lithium batteries safer and more durable, boosting the next generation of electric vehicles, foreign media reportedDuring testing, this coating significantly extends battery life and greatly limits the production of lithium crystals, avoiding piercing the partition between the positive and negative poles of the battery, and solving combustion problemsLithium crystals not only damage the battery, but also cause short circuits in flammable liquids of the batteryLithium-ion batteries occasionally have the same problem, but lithium-metal rechargeable batteries are more affectedlithium metal batteries provide at least a third more power per pound than lithium-ion batteries, and much lighter because lithium-metal batteries use light lithium as a positive charge end rather than bulky graphite"If lithium-metal batteries improve performance, the automotive industry will be the biggest beneficiary, in addition to portable electronics such as laptops and mobile phones," said Cui, a researcherBecause in the course of electric vehicles, the battery consumes about a quarter of its own energy, affecting the mileage and production costs of electric vehicles"
" the capacity of conventional lithium-ion batteries has been almost exhausted," says David Mackanic, a Doctoral Student at Stanford University and one of the lead researchers"
Stanford University and the SLAC research team, testing their coatings at the positive charge end (i.ethe negative pole) of standard lithium metal batteries, which are usually where lithium crystals are formedThey use negatives with special coatings and other components to build running batteriesAfter 160 cycles, their lithium-metal batteries were able to maintain 85% of their starting capacityOrdinary lithium-metal batteries release 30% of the lithium after so many cycles, and are almost useless even if they do not explodethe new coating prevents the formation of lithium crystals by creating a molecular network that distributes charged lithium ions evenly to the electrodeIt prevents unnecessary chemical reactions on the battery and reduces the build-up of chemicals on the negative pole so that they can quickly damage the battery's power supply in a short period of time "Our new coating design makes lithium metal batteries more stable and offers prospects for further development," said Zhiao Yu, a Doctoral Student at Stanford University "Currently, the team is now improving their coating design to improve capacity retention and battery cycletimes