Stable, Lithium-Metal Solid-State Battery can be Charged, Discharged Many Times
Written by AZoMMay 13 2021
Quick-charging and long-lasting batteries are crucial to expand the electric vehicle sector but despite this fact, the current generation of lithium-ion batteries does not meet this requirement because they are extremely costly, quite bulky, and take a considerable amount of time to charge.
The first electrolyte (green) is more stable with lithium but prone to dendrite penetration. The second electrolyte, (brown) is less stable with lithium but appears immune to dendrites. In this design, dendrites are allowed to grow through the graphite and first electrolyte but are stopped when they reach the second. Image Credit: Second Bay Studios/Harvard SEAS.
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Long-lasting, quick-charging batteries are essential to the expansion of the electric vehicle market, but today s lithium-ion batteries fall short of what s needed they re too heavy, too expensive and take too long to charge.
For decades, researchers have tried to harness the potential of solid-state, lithium-metal batteries, which hold substantially more energy in the same volume and charge in a fraction of the time compared to traditional lithium-ion batteries. A lithium-metal battery is considered the holy grail for battery chemistry because of its high capacity and energy density, said Xin Li, Associate Professor of Materials Science at the Harvard John A. Paulson School of Engineering and Applied Science (SEAS). But the stability of these batteries has always been poor.
New ideas for global warming solutions win $1M in funding
SEAS projects among those awarded Climate Change Solutions Fund
April 29, 2021
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Harvard faculty and students are training their interests and expertise on what is literally the world’s hottest hot-button issue: global warming. As a result, nine research teams will share $1 million in the seventh round of the Climate Change Solutions Fund (CCSF) awards for proposals that create critical knowledge, propel novel ideas, and lead toward solutions that can be applied at Harvard and across the globe.
“Pursuing a more sustainable future means advancing on several fronts to address the tremendous challenges posed by climate change,” Harvard President Larry Bacow said. “The projects being funded this year draw on strengths from across the University and among a wide swath of researchers and scholars. I look forward to seeing where their efforts lead us in the years ahead.”
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