People often throw crab and prawn shells straight in the trash without thinking about them. But these shells may have more uses than many people realize. A 2022 study published in Matter, titled A sustainable chitosan-zinc electrolyte for high-rate zinc-metal batteries , developed a zinc-metal battery using a biodegradable chitosan electrolyte derived from crustacean shells. The battery recorded 99.7% energy efficiency after 1,000 cycles.
A battery that could power the future
