Samsung develops all-solid-state battery: 900Wh/L energy density, half the size of lithium-ion battery

Scientists and large companies have long sought to make breakthroughs in battery technology, and in the latest issue of Nature Energy, Samsung Advanced Research Institute and Samsung Japan Research Institute jointly published the latest developments in solid-state batteries. This high-performance, long-lasting, all-solid-state battery has a higher energy density than lithium-ion batteries, making it possible and safer to have more capacity.

Samsung develops all-solid-state battery: 900Wh/L energy density, half the size of lithium-ion battery

Previously, all solid-state batteries generally use lithium metal as anode, but the long time is easy to trigger the branch fork effect, affecting life and safety. This time, Samsung researchers discovered the Silver Carbon (Ag-C) nano-chemical anode layer, which also achieves greater capacity, cycle life, and safety.

It is reported that the silver carbide layer thickness of only 5 microns, but the battery energy density increased to 900Wh/L. Prototype batteries are 50 percent smaller than conventional lithium-ion batteries of the same capacity.

Samsung’s expectation of an all-solid-state battery is to be the first to be used in electric vehicles, with prototypes reaching up to 800 km of battery life on a single charge and looping up to 1,000 times.