Cathode Material Lithium-ion Batteries - Europe PMC

Recycling of cathode material from spent lithium-ion batteries: Challenges and future perspectives.

The number of spent LIBs has increased as a result of lithium-ion batteries' intrinsic development for use in electric cars, portable electronic equipment, and energy-storage systems. Therefore, we introduce the concept of LIBs and review state-of-art metal recycling processes herein. Direct recycling techniques, as well as the cost-effective and sustainable cathode healing techniques, have a huge potential for the recycling of LIBs without decomposition or precipitation; therefore, these methods can be widely adopted for EV batteries.

Source link: https://europepmc.org/article/MED/35086036

Preparation and characterization of the Li_1.12K_0.05Mn_0.57Ni_0.24Nb_0.02O₂ cathode material with highly improved rate cycling performance for lithium ion batteries.

It can be determined that K + and Nb 5+ substitution is respectively in the lithium layer and transition metal layer rather than those in the TM layer, thanks to a combination of interlayer exchange and elemental analysis. Electrochemical impedance spectroscopy, the galvanostatic intermittent titration system, and galvanostatic charge/discharge are a few examples of the impact of K+ and Nb 5+ co-substitution's kinetic behavior on Li +'s kinetic behaviour of introduction/extraction of Li + is investigated by electrochemical impedance spectroscopy, the robust intermittent titration method and galvanostatic charge/discharge. At 5C rate and 112 mA h g -1 at 10C rate, and maintains 83. 1% after 400 cycles at 5C rate and 82. 5% at 10C rate. This research demonstrates that dual elemental substitution in the lithium layer and TM layer is a viable option to improve LLO cathode materials' performance.

Source link: https://europepmc.org/article/MED/34889915

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