MXene current collectors, which direct electrical current to electrodes, could reduce size/ weight and improve recyclability of Li-ion batteries

https://www.eurekalert.org/news-releases/1101542

"perform as well as copper foils which constitute nearly 15% of battery weight, but are 3 to 4X thinner/ about 10X lighter... translates chemical energy into electrical current... MXenes: exceptional electrical conductivity, excellent flexibility, high mechanical strength, electrochemically stable in acidic/ corrosive electrolytes, dispersible in water enabling easy processing... also for use in lightweight batteries for drones or other flying vehicles"