Researchers at the Ningbo Institute of Materials Technology and Engineering found that heating aged Lithium-Ion batteries to temperatures between 150-250°C can restore energy density lost over time. This process challenges traditional notions of thermodynamics as the heating causes batteries to shrink, effectively reversing deterioration from charge-discharge cycles. While the risk of thermal runaway exists, the findings suggest a potential pathway for more efficient battery restoration and introduce a new perspective on battery chemistry that might leverage internal structural changes for enhanced performance.
The Ningbo Institute team discovered that heating old Lithium-Ion batteries to over 150°C can reverse capacity losses, surprising even themselves with the results.
Despite the risks of thermal runaway, researchers found that high temperatures can actually shrink batteries, reversing the effects of capacity loss from previous use.
This heating method suggests a potential new avenue for battery restoration, challenging the conventional wisdom that heating would not yield beneficial outcomes.
The team believes that structural disorder within batteries may become a 'tunable parameter,' leading to advancements in battery charging technologies.
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