Enhanced electrochemical properties of Li[Li0.2Mn0.54Ni0.13Co0.13]O2 via lithium boron oxide glass surface treatment

Bai, Ming; Wang, Zhixing; Li, Xinhai; Guo, Huajun; He, Zhenjiang; Zhao, Junkai

doi:10.1016/j.ssi.2016.05.013

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…In another study, a 3 wt% loading of LBO on Li(Li 0.2 Ni 0.13 Mn 0.54 Co 0.13 )O 2 retained 92% of its capacity after 100 cycles (at 1C from 2.5 to 4.6 V vs Li/Li + ), which was much better than observed for its pristine counterpart (i.e., only 70% retention of capacity under the same operating conditions). 244 The NMC 811 cathode coated with a 1 wt% loading of Li 2 O-B 2 O 3 yielded an improved electrochemical performance in comparison to the 0.5 and 2 wt% loadings on NMC 811, and relative to the base NMC 811 cathode material. 245 The bare NMC 811 cathode had a specific capacity of ∼182 mA•h•g −1 , whereas the NMC 811 coated with 0.5, 1, and 2.0 wt% Li 2 O-B 2 O 3 yielded specific capacities of ∼150, 198 and 159 mA•h•g −1 after 20 cycles at 0.2C over the voltage range from 3.0 to 4.3 V (vs Li/Li + ).…”

Section: Different Types Of Coatingsmentioning

confidence: 91%

Review—Surface Coatings for Cathodes in Lithium Ion Batteries: From Crystal Structures to Electrochemical Performance

Kaur

Gates

2022

J. Electrochem. Soc.

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Lithium ion batteries (LIBs) have dominated the energy industry due to their unmatchable properties, which include high energy density, compact design, and an ability to meet a number of required performance characteristics in comparison to other rechargeable systems. Both government agencies and industries are performing intensive research on Li-ion batteries for building an energy-sustainable economy. LIBs are single entities that consist of both organic and inorganic materials with features covering multiple length scales. Critical insights should be made for understanding the structure to property relationships and the behavior of components under the working condition of LIBs. Cathodes tend to react with the electrolytes and, hence, to undergo surface modifications accompanied by degradation. These side-reactions result in an erosion of battery performance, thereby causing a reduced battery life and power capacity. Recently, techniques for preparing surface coatings on cathode materials have been widely implemented as a measure to improve their stability, to enhance their electrochemical performance. This review will cover different types of surface coatings for cathode materials, as well as a comparison of the changes in electrochemical performance between those materials with and without an applied coating.

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Section: Different Types Of Coatingsmentioning

confidence: 91%

Review—Surface Coatings for Cathodes in Lithium Ion Batteries: From Crystal Structures to Electrochemical Performance

Kaur

Gates

2022

J. Electrochem. Soc.

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“…have been regarded as promising alternative cathode materials for LIBs since some of them exhibit superior performance with higher discharge capability and lower cost compared with the conventional LiCoO 2 [6–10] . For instance, xLi 2 MnO 3 ⋅ (1‐x)Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 (alternately expressed as Li 1.2 Mn 0.54 Co 0.13 Ni 0.13 O 2 when x=0.5) delivers a large capacity over 250 mAh g −1 at the cut‐off voltage of 4.6 V or higher [11] …”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8][9][10] For instance, xLi 2 MnO 3 ⋅ (1-x)Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 (alternately expressed as Li 1.2 Mn 0.54 Co 0.13 Ni 0.13 O 2 when x = 0.5) delivers a large capacity over 250 mAh g À 1 at the cut-off voltage of 4.6 V or higher. [11] However, there are several major drawbacks limiting the large yield of these materials in practical application including poor rate capability and insufficient cycling stability in high charge cut-off voltage (4.6-4.8 V vs. Li/Li + ). [12] In lithium ion batteries, the majority of electrochemical reactions occur on the interface of electrode and electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Properties of Lithium‐Rich Cathode Materials by Magnesium Borate Surface Coating

et al. 2021

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Magnesium borate oxide (MBO) coated lithium‐rich layered Li1.2Mn0.54Co0.13Ni0.13O2 particles are synthesized via a wet chemical coating method. The X‐ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, and X‐ray photoelectron spectrometer results indicate that the cathode particles are uniformly covered with a MBO layer. The results of charge/discharge tests show that the MBO‐coated electrode has enhanced electrochemical properties both in rate capability and cycling stability compared to the bare one. Specifically, 3 wt. % MBO‐coated sample has capacity retention of 98.3 %, much more than the bare one of only 79.2 % after 100 cycles at 1 C. Furthermore, the MBO‐coated electrode retains a superior high‐rate capacity of 90 mAh g−1 at 10 C. The remarkably enhanced rate capability and cycling stability of MBO‐coated electrode is ascribed to the MBO coating layer efficiently isolating the bulk Li1.2Mn0.54Co0.13Ni0.13O2 from direct contact with the electrolyte, and facilitating both charge transfer reaction and the kinetics of lithium ion diffusion through the surface layer.

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Nanoscale surface modification of Li-rich layered oxides for high-capacity cathodes in Li-ion batteries

et al. 2018

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Enhanced electrochemical properties of Li[Li0.2Mn0.54Ni0.13Co0.13]O2 via lithium boron oxide glass surface treatment

Cited by 5 publications

References 28 publications

Review—Surface Coatings for Cathodes in Lithium Ion Batteries: From Crystal Structures to Electrochemical Performance

Review—Surface Coatings for Cathodes in Lithium Ion Batteries: From Crystal Structures to Electrochemical Performance

Enhanced Electrochemical Properties of Lithium‐Rich Cathode Materials by Magnesium Borate Surface Coating

Nanoscale surface modification of Li-rich layered oxides for high-capacity cathodes in Li-ion batteries

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