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Cathode Material - Springer Nature

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Last Updated: 27 January 2023

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Enhanced electrochemical performance of Ni-rich layered LiNi_0.9Co_0.05Mn_0.05O_2 cathode material via synergistic modification of cerium doping and ceria coating

Ce doping improves the inner structure stability, reduces the cation mixing, and extends the lithium diffusion pathway due to Cerium ion's high bond dissociation energy and large rad radius. The Ce doping and coating are embedded successfully into LiNi_0. 05Mn_0. 05O_2 cathode material, proving that Ce doping and coating are also introduced into LiNi_0. 05Mn_0. 05O_0. 05O_2 cathode resin. After 100 cycles, the capacity retention of the modified sample is 93% at 1 C rate between 2. 8 and 4. 3 V. To produce high capacity cathode, the synergistic effects of cerium doping and ceria coating modification on the electrochemical stability and structural stability could be extended.

Source link: https://doi.org/10.1007/s11581-022-04832-9


Selection of Cu^2+ for intercalation from the electronegativity perspective: Improving the cycle stability and rate performance of δ-MnO_2 cathode material for aqueous zinc-ion batteries

Intercalation by Ion is an efficient method of improving cycle stability and rate performance of u03b4-MnO_2 as a cathode material for aqueous zinc-ion batteries. Cu2+ was selected for the u03b4-MnO_2+ intercalation because, although Cu2+ and Zn2+ have the same diameters, Cu2+ has slightly higher electron density than Zn2+. Cu2+ has a higher connection with the MnO_2 lattice than Zn2+, and can be more flexible during intercalation/deintercalation of Zn 2+ and H+. The Cu-O bond in CMO served as a solid structural column and greatly increased the stability of CMO given that Cu 2+ has a higher electron density than Zn2+. Also, Cu2+ doping improved the electronic conductivity and ionic conductivity of CMO, as well as reduced the charge transfer haze of H+ and Zn2+ at the electrode/electrolyte interface, which greatly improved CMO's rate stability. para8272u6968cu853c, 632btc, u548cu738bu7035%u7378u80704c, u7335–u7635c/u7535u548c/u7635u548cu7879bbbc(u7636)u37741/4e861pd4u783638/u548cu7935u7735u78808077784e858353u603680777872481u738241b7641351u7678354e83773u6b564176793u773541783d5b594eu72483u53561u784e7635129647686683u7642353u794e5805b70352u784cu7635861u79891u8021u5803u78781u76.

Source link: https://doi.org/10.1007/s40843-022-2179-7


Improved Sodium Storage Performance of Zn-Substituted P3-Na_0.67Ni_0.33Mn_0.67O_2 Cathode Materials for Sodium-Ion Batteries

When the initial density of 100 mA gu22121. 25 V. , with optimized Zn content of 0. 9 percent and Coulomb performance of 89. 2%, can be delivered with an initial reversible discharge specific capacity of 126. 14 mA gn_0. 67Ni_0. 47Mn_0. 67O_2. 09V. 01, which is much higher than those in other samples with different Zn content.

Source link: https://doi.org/10.1007/s11664-022-10045-7


Resolving complex intralayer transition motifs in high-Ni-content layered cathode materials for lithium-ion batteries

The promise of cathodes for next-generation lithium-ion batteries are shown by high-Ni-content layered materials. We report that a delithiation reaction by delithiation resulted in the production of two forms of O1 u2013O3 interfaces, the continuous- and abrupt transfer interfaces. Interplane Li+ delivery in a delithiated O3 lattice, according to various types of interface, and intermittent in-plane Li+ diffusion contributes to the onset of both forms of interface, and the abrupt transition is economically more favourable in a delithiated state where O1 is predominant, or when there is uneven in-plane Li+ distribution in a delithiated O3 lattice. In high-Ni layered cathodes, the phase transitions and phase boundaries determined in this research are given further insight into shear-induced phase shifts and phase boundaries. Li-ion-powered cathodes are promising for lithium-ion batteries, but investigating their delithiation-induced phase boundaries is difficult. Complex phase boundaries in these high-Ni electrodes' complex phase boundaries can now be resolved by deep-learning-aided super-resolution electron microscopy.

Source link: https://doi.org/10.1038/s41563-022-01461-5


Inhibiting collective cation migration in Li-rich cathode materials as a strategy to mitigate voltage hysteresis

Even when migrating transition metal ions are present, we show that voltage hysteresis is related to the collective migration of metal ions and that creating partial disorder aids in the migration of metal ions from each other. We demonstrate this on a layered Li-rich manganese oxide that in its fully ordered state exhibits a significant voltage hysteresis associated with collective transition metal migration into Li layers, but it can be difficult to achieve high capacity and energy density when partial chaos disrupts collective migration.

Source link: https://doi.org/10.1038/s41563-022-01467-z


Effect of heteroatom in conductive polymer coating of cathode materials on electrochemical performance of lithium sulfur batteries

A cost-effective method for increasing lithium-sulfur battery electrochemical results is Coating conductive polymers on carbon/sulfur cathode. Moreover, the heteroatoms in conductive polymer coating in addition have positive effects on electrochemical stability. Herein, the C/S cathode was coated with polypyrrole and polythiophene, which were both manufactured and scientifically investigated to reveal the effect of nitrogen and S heteroatoms on the electrochemical property. This research presented the particular functions of N and S heteroatoms in conductive polymer coating on C/S cathode materials, showing their potential use in advanced Liu2013S batteries.

Source link: https://doi.org/10.1007/s11581-023-04882-7


Two-dimensional sandwich-like heterostructures of amorphous VO_x/MXene as freestanding cathode materials with superior electrochemical performance for aqueous zinc-ion batteries

Although vanadium-based compounds are believed to be reliable zinc storage materials due to their high theoretical fidelity, notorious poor conductivity, and a flexible framework, their practical uses are unlikely. At 15 A gu22121 and high-rate capacity of 362 mAh gu22121 at 15 A gu22121, as well as excellent cycling performance with a cycle decay of only 0. 3 percent per cycle over 3000 cycles.

Source link: https://doi.org/10.1007/s10854-022-09552-4


Cathode materials for lithium-sulfur battery: a review

Lithium-sulfur batteries are considered to be one of the most promising candidates for becoming the post-lithium-ion battery technology, because they will need a high degree of energy density in a variety of applications. Then, the focus shifts to intermediate lithium polysulfide adsorption capacity and the challenges involved in improving LSBs by using alternative materials other than carbon for cathode construction. In the context of intermediate lithium polysulfide species adsorption and suppression shuttle performance, one significant issue is that polar material should be more palatable than non-polar carbonaceous materials.

Source link: https://doi.org/10.1007/s10008-023-05387-z


SDF-based conjugated microporous polymers cathode materials with high cycle stability for lithium-ion batteries

Due to their benefits, such as highly interconnected structures, large open areas, u03c-conjugated frameworks, and high chemical and thermal stability, conjugated microporous polymers are used as electrode materials in lithium-ion batteries. CMPs-By - with more microporous walls, shows a lower bandgap and larger specific surface area when compared to CMPs-By. In addition, the kinetic behavior of Li+ storage in CMPs-B has been investigated, of which the charge storage process of CMPs-B is controlled by capacitance and diffusion synergistically.

Source link: https://doi.org/10.1007/s10854-022-09531-9

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions