Solid-state batteries are widely regarded as one of the most promising technologies in modern energy.
Rather than relying on the flammable liquid used in conventional cells, they employ a solid material to carry the electric charge.
This approach allows them to pack in more energy, recharge more quickly and operate more safely, with a much lower risk of fire.
For these reasons, they are frequently described as the next major leap for electric vehicles and robots alike.
The main obstacle is cost, since they remain difficult and expensive to manufacture at scale.
Even so, the potential payoff is enormous, and numerous companies are competing fiercely to perfect the technology.
Whoever succeeds first could gain a powerful advantage across several fast-growing industries.