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Calcium can be an alternative to lithium in batteries
Calcium-based metal-free batteries are unique and completely different from those that use cobalt in their lithium-ion form. The research group's focus on this type of battery stems from a desire for greater control over the domestic supply chain, as cobalt and lithium are usually sourced in other countries. In addition, safer battery chemistry could prevent potential fires.
An important step forward in the field of calcium batteries was recently made by Chinese researchers who used calcium peroxide in their production, which is said to be excellent for storing electrical energy. In addition, it is also found in everyday products, such as chewing gum, toothpaste and even erasers.
Chinese experts managed to complete 700 charging cycles with a battery based on calcium peroxide. This is an encouraging number and an indication that in the future, with additional improvements, these types of batteries could be used in mobile devices. To achieve a decent number of charging cycles, experts used a special electrolyte and carbon fibers. It is also worth noting that calcium batteries can also store more electrical energy compared to lithium.
Calcium batteries are currently still in the initial development phase. The biggest problem of the researchers is the poor performance of the batteries when charging. Nevertheless, the success of Chinese experts gives hope that in the future we will use batteries that will be significantly cheaper compared to lithium batteries. In addition, they will also be safer to use and will be able to store more energy.
