Researchers from KAIST and LG Energy Solution have announced a significant advancement in lithium metal battery technology, which promises to greatly extend the driving range of electric vehicles. Lithium metal batteries are known for their potential to increase driving range, but they face challenges such as dendrite formation and corrosion from liquid electrolytes. The joint research team has developed a pioneering borate-pyran based liquid electrolyte, which has not been reported before, enabling a more compact solid electrolyte interphase (SEI) on the lithium metal anode. This SEI restructuring technique not only solves the issues of dendrites and corrosion, enhancing charge-discharge efficiency, but also allows for a lighter anode and electrolyte, increasing energy density. The new battery technology enables up to 900 km of driving range on a single charge and over 400 recharges, a significant improvement over the current lithium-ion batteries. This research has been published in the prestigious journal ‘Nature Energy’ and is a product of the collaborative efforts of the Frontier Research Laboratory established by KAIST and LG Energy Solution in 2021, showcasing the potential of partnerships between academia and industry in driving technological innovation.
South Korean battery maker LG Energy Solution Ltd. (LGES) has successfully developed a next-generation battery technology that can power a 900-kilometer drive on a single charge.A joint research team of LGES and the Korea
Source: LGES, KAIST develop next-generation Li-metal batteries – Pulse by Maeil Business News Korea
리튬금속전지는 전기차의 주행거리를 크게 높일 수 있다는 것이 특징을 가지고 있다. 하지만, 리튬금속은 전지의 수명과 안정성 확보를 어렵게 하는 `덴드라이트(Dendrite)’ 형성과 액체 전해액에 의한 지속적인 부식(Corrosion)이 발생하여 기술적 해결이 필요하다.
Source: KAIST-LG에너지솔루션, 리튬금속전지 기술 혁신