Pohled na LiHV z jejich slabší stránky. POKLES KAPACITY Li-thiových akumulátorů během jejich života degradací
je intenzivnější pro nabíjení na vyšší napětí ( 4.10 4.20 4.35 V, LiIon LiPol LiHV)
""As the lithium ions race through the reaction layers, they cause clumping crystallization—a kind of rock-salt matrix builds up
over time and begins limiting performance," Xin said. "We found that these structures tended to form along the lithium-ion
reaction channels, which we directly visualized under the TEM [transmission electron microscope - ed].
The effect was even more pronounced at higher voltages, explaining the more rapid deterioration.""
Scientists Solved the Mystery of Why Rechargeable Batteries Go Bad- PROCES DEGRADACE JE MOŽNO ZPOMALIT S VYUŽITÍM NANO-TECHNOLOGIÍ
""It may be possible to use atomic deposition to coat the NMC cathodes with elements that resist crystallization,
creating nanoscale boundaries within the micron-sized powders needed at the cutting-edge of industry," Xin said.
"In fact, Berkeley Lab battery experts Marca Doeff and Feng Lin are working on that now.""
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Scientists pinpoint the creeping nanocrystals behind lithium-ion battery degradation- JAKO VŠE NADĚJNÉ, I TENHLE výzkum-vývoj-výroba NĚJAKÝ TEN PÁTEK POTRVÁ