https://www.popularmechanics.com/science/energy/a43391877/oxygen-ion-battery-could-change-energy/
Ceramic oxygen-ion batteries aren’t made from any materials that damage the planet in their extraction, they are completely flame-resistant (so no surprise fire), and they don’t degrade. According to the team, an oxygen-ion battery is basically infinitely rechargeable without ever getting worse at holding that charge.