The stats were worrying initially, but things improved significantly after 2015. Plug-in electric vehicles' lithium-ion batteries have become less prone to failures in recent years.
University of Maryland researchers studying how lithium batteries fail have developed a new technology that could enable next-generation electric vehicles (EVs) and other devices that are less prone to battery fires while increasing energy storage.
Significantly improved electric vehicle (EV) batteries could be a step closer thanks to a new study led by University of Oxford researchers, published today in Nature. Using advanced imaging techniques, this revealed mechanisms which cause lithium metal solid-state batteries (Li-SSBs) to fail.
According to the data, the worst model year was 2011 with a 7.5% failure rate (aside from recalls). In the next few years, it was 1.6-4.4%, which indicates that several percent of EV users were affected by a battery failure.
This article offers a summary of the evolution of power batteries, which have grown in tandem with new energy vehicles, oscillating between decline and resurgence in conjunction with industrial advancements, and have continually optimized their performance characteristics up to the present.
Projections are that more than 60% of all vehicles sold by 2030 will be EVs, and battery technology is instrumental in supporting that growth. Batteries also play a vital role in enhancing power-grid resilience by providing backup power during outages and improving stability in the face of intermittent solar or wind generation.