文章预览
📢 文末扫码进裙，免费领取双语精读版 New battery designs could lead to gains in power and capacity Researchers are looking beyond the cathode The Economist battery 19 Sep, 2024 | 1192 words | ★★ ★ ★ ★ In their quest to build a better battery, researchers have blazed a trail through the elements of the periodic table. The earliest prototype cells ran on nickel and cadmium; successors have used everything from zinc and iron to sodium and lead. All have had what it takes to serve as a cathode for a battery: namely, an ability to have electrons ripped away from their atoms to be turned into electric current, leaving positively charged ions behind. For the past four decades, though, it is lithium that has beaten all comers. Lightweight and reactive, it serves as an ideal cathode component; lithium-ion (Li-ion) batteries are widely used in electricity grids and can be found in most of the world’s electric vehicles. So effective are lithium-based cathodes tha
………………………………
