14.02.2025 14:51
Chinese researchers have developed a 'precise treatment' technology that can revive aging lithium-ion batteries. This technology aims to extend their lifespan while also reducing environmental pollution.
Chinese scientists have developed a revolutionary "precision treatment" technology that can revive aging or depleted lithium-ion batteries. This technology offers a sustainable solution that extends the lifespan of lithium-ion batteries and reduces environmental pollution.
The research led by Peng Huisheng and Gao Yue from Fudan University was published in the journal Nature. Lithium-ion batteries that suffer from capacity loss due to the depletion of active lithium ions are often discarded as they are considered impossible to repair. However, the team developed a new approach inspired by medical treatments. The lithium carrier molecule developed by the team is precisely injected into the power-depleted batteries to replace the lost lithium ions.
Gao explained this process by saying, "Just like treating a disease in humans, we focused on repairing the main issue in the battery while preserving its healthy components." The design of the lithium carrier molecule emerged as a challenge in itself. Unable to find any previously designed templates to follow, the team turned to artificial intelligence. Using machine learning to predict usable options, the team utilized extensive datasets that digitized molecular properties and spanned organic chemistry, electrochemistry, and materials engineering.
CF3SO2Li was identified as the ideal solution due to its important features such as low cost, easy synthesis, and compatibility with widely used battery materials. It was demonstrated that batteries treated with molecular therapy exhibited performance close to factory output even after 12,000-60,000 charge-discharge cycles in rigorous tests. This represents a significant improvement compared to the current industry standard of 500-2,000 cycles. "The new solution not only prolongs the retirement process of batteries but also reduces resource waste and pollution," said Gao, adding that the team is currently focused on optimizing the mass production of the lithium carrier molecule and collaborating with battery manufacturers for the commercialization of the technology.