As we all know, EVs depend on cutting-edge battery technology to stay at the forefront of their given segment, and now, Samsung has presented new solid-state battery tech that could one day rival lithium-ion units, including those used in current and forthcoming GM battery applications.
Just last week, researchers from the Samsung Advanced Institute of Technology and the Samsung R&D Institute Japan presented a study on solid-state battery technology to the scientific journal, Nature Energy.
“Compared to widely used lithium-ion batteries, which utilize liquid electrolytes, all-solid-state batteries support greater energy density, which opens the door for larger capacities, and utilize solid electrolytes, which are demonstrably safer,” Samsung outlines in a recent press release.
Solid-state batteries are also susceptible to the growth of “dendrites,” which can affect their lifespan and safety. To counteract those effects, the Samsung researchers used a special silver-carbon composite layer as the battery anode, which enabled greater capacity, longer life, and enhanced safety.
Solid-state batteries are seen as a viable pathway to more widespread electric vehicle adoption, offering a longer life cycle and more miles per charge than the current lithium-ion units widely used today. Samsung says that solid-state batteries could be used to propel an EV upwards of 500 miles between plugs.
The current GM battery offerings are based on lithium-ion tech, including the recently revealed Ultium line that debuted during the GM EV Day event.
As we covered back in 2019, General Motors received $2 million in government funds to develop solid-state battery tech. The funding was directed towards research into the “interfacial phenomena in solid-state batteries,” as well as “hot pressing of reinforced all-solid-state batteries with sulfide glass electrolyte.”
While solid-state batteries remain one possible future for electric vehicles, the current GM battery tech remains lithium-ion. The recently revealed Ultium battery system uses new chemistry that helps to drive down cost and improve battery performance. The new GM battery cells will be produced at the GM-LG Chem joint-venture plant in Lordstown, Ohio.