Why thick battery electrodes fail: Chemistry, not construction, holds the important thing

Source link : https://tech365.info/why-thick-battery-electrodes-fail-chemistry-not-construction-holds-the-important-thing/

Zeyuan Li and Ming Tang. Credit score: Jorge Vidal / Rice College

Thicker battery electrodes pack in additional energetic supplies, promising larger power density. Nonetheless, in the case of lithium-ion battery efficiency, electrode supplies’ thermodynamic properties matter greater than their structural design.

A crew of Rice College researchers led by supplies scientist Ming Tang has proven that even when the supplies utilized in thick battery electrodes have practically equivalent buildings, their inner chemistry impacts power move—and therefore, efficiency—otherwise. This discovering goes towards typical knowledge within the subject, which holds that creating pore channels within the electrode materials through totally different patterning methods might mitigate poor response uniformity.

“‘Thick’ battery electrodes store more energy, which is great for longer phone life or electric car charge but struggle to charge and discharge quickly due to limited usable capacity,” mentioned Zeyuan Li, a Rice doctoral alumnus and first writer on the research. “Imagine trying to fill a thick sponge evenly with water, but the water only rushes into a portion of the sponge, leaving the rest dry—that is the problem with ‘thick’ electrodes.”

In line with a research revealed in Superior Supplies, the researchers in contrast two frequent lithium-ion battery electrode supplies—lithium iron phosphate (LFP) and a nickel manganese cobalt…

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Author : tech365

Publish date : 2025-07-09 22:40:00

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