Argonne National Lab Creates Lithium-Ion Batteries That Work In The Cold
. They don’t charge as fast and they don’t go as far. It’s a problem, but Argonne National Laboratory says it may have the answer., the scientists at Argonne say that in today’s lithium-ion batteries, the liquid electrolyte that serves as a pathway for ions to travel between the cathode and the anode as the battery charges and discharges begins to freeze at sub-zero temperatures. This condition severely limits the effectiveness of charging electric vehicles in cold regions and seasons.
The team investigated several solvents that were infused with fluorine and were able to identify the one that had the lowest energy barrier for releasing lithium ions from the clusters at sub-zero temperature. They also determined at the atomic scale why that particular composition worked so well — it was dependent on the position of the fluorine atoms within each solvent molecule and their number.
Zhang’s fellow scientists at Argonne are Dong-Joo Yoo, Qian Liu and Minkyu Kim. Berkeley Lab authors are Orion Cohen and Kristin Persson. The work was funded by theDelving Into The DetailsThe research is explained in exquisite detail in the journalI am not a scientist, nor have I ever played one on television. That’s a good thing because the turgid prose of most scientific writing makes my eyes glaze over.
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