Story perspectives

MIT's New Model Boosts Lithium-Ion Battery Efficiency

10/4/2025

Summary

Story summary

Massachusetts Institute of Technology researchers propose a coupled ion-electron transfer (CIET) model for lithium-ion batteries, showing ions bring an electron during intercalation.
The model explains why Butler-Volmer predictions mispredict intercalation rates observed in experiments.
Findings published in Science, supported by Shell and the Toyota Research Institute, enable tuning of materials and electrolytes to speed charging and extend lifespan.

History

Historical Context

In 1991, Sony launched the first commercial lithium-ion battery, a breakthrough stemming from research dating back to the 1970s. This innovation, developed with contributions from scientists like John B. Goodenough, has since transformed the portable electronics market, projected to reach $129 billion by 2027, as demand for efficient energy storage solutions continues to grow across various industries.

1 of 2

Story summary

Massachusetts Institute of Technology researchers propose a coupled ion-electron transfer (CIET) model for lithium-ion batteries, showing ions bring an electron during intercalation.
The model explains why Butler-Volmer predictions mispredict intercalation rates observed in experiments.
Findings published in Science, supported by Shell and the Toyota Research Institute, enable tuning of materials and electrolytes to speed charging and extend lifespan.

1 / 2