Based on recent studies, lithium ion batteries are key to a low-carbon future. The only problem is that while lithium could theoretically conduct electricity at high capacity, it also results in what is known as thermal runaway during the charge and discharge cycle.
Lithium metal is inherently unsuitable for use in rechargeable batteries due to posing certain safety risks. Repeated lithium deposition/dissolution during charge/discharge can cause serious accidents due to the deposition of lithium dendrites that penetrate the separator and induce internal short-circuiting.
As the need for batteries capable of more energy capacity increases, the need for more secure storage within the battery also becomes critical.
A number of studies have been developed to prevent the growth of lithium dendrites that are complicated and have some problems. The researchers introduced a type of magnesium salt capable of combining with lithium to stop dendritic branching. It worked, but they found it difficult to reverse, which is necessary in rechargeable batteries. Now, the researchers are studying the benefits of other types of magnesium salts, as well as working to improve the electrochemical stability of the salt combined with lithium to make reversal easier. The researchers hope to solve the issues with this plating technology and eventually achieve a compact and high-capacity battery.