LiFePO4 and LiMn2O4 nanocomposite coating of LiNi0.815Co0.15Al0.035O2 cathode material for high-performance lithium-ion battery

Ziwei, Lan; Zhang, Jianru; Li, Yuanyuan; Xi, Ruheng; Yuan, Yong-Xiang; Zhao, Lei; Hou, Xiaoyi; Wang, Jiatai; Ng, Dickon H. L.; Zhang, Caihong

doi:10.1007/s12598-022-01993-4

Cited by 14 publications

(3 citation statements)

References 38 publications

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“…Thus, the migration of Li + is promoted and the rate performance of the battery is improved. [19] This interphase can suppress side reactions and severe electrolyte decomposition, thereby enhancing the cycling stability of the battery, which is in line with the long-term cycling and rate performance results.…”

Section: Temperature Performance Of the Batteries With Pditc Additivementioning

confidence: 56%

A Functional Electrolyte Containing P‐Phenyl Diisothiocyanate (PDITC) Additive Achieves the Interphase Stability of High Nickel Cathode in a Wide Temperature Range

Gao,

Zeng,

et al. 2024

Chemistry A European J

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The lithium‐ion batteries (LIBs) with high nickel cathode have high specific energy, but as the nickel content in the cathode active material increases, batteries are suffering from temperature limitations, unstable performance, and transition metal dissolution during long cycling. In this work, a functional electrolyte with P‐phenyl diisothiocyanate (PDITC) additive is developed to stabilize the performance of LiNi0.8Co0.1Mn0.1O2 (NCM811)/graphite LIBs over a wide temperature range. Compared to the batteries without the additive, the capacity retention of the batteries with PDITC‐containing electrolyte increases from 23% to 74% after 1400 cycles at 25 °C, and from 15% to 85% after 300 cycles at 45 °C. After being stored at 60 °C, the capacity retention rate and capacity recovery rate of the battery are also improved. In addition, the PDITC‐containing battery has a higher discharge capacity at ‐20 °C, and the capacity retention rate increases from 79% to 90% after 500 cycles at 0 °C. Both theoretical calculations and spectroscopic results demonstrate that PDITC is involved in constructing a dense interphase, inhibiting the decomposition of the electrolyte and reducing the interfacial impedance. The application of PDITC provides a new strategy to improve the wide‐temperature performance of the NCM811/graphite LIBs.

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Section: Temperature Performance Of the Batteries With Pditc Additivementioning

confidence: 56%

A Functional Electrolyte Containing P‐Phenyl Diisothiocyanate (PDITC) Additive Achieves the Interphase Stability of High Nickel Cathode in a Wide Temperature Range

Gao,

Zeng,

et al. 2024

Chemistry A European J

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“…This also initially shows the performance of the battery [ 37 , 38 ]. Figure 10 b demonstrates the dQ/dV curve, which shows only one distinct redox couple of an oxidation peak and a reduction peak in the voltage range of 2.5–4.5 V. The results show that the crystal structure of the material does not change, so Li + has good intercalation and deintercalation abilities [ 39 , 40 ]. Consequently, the LiNi 0.8 Co 0.15 Al 0.05 O 2 @1.5%Al 2 O 3 battery exhibits good cycling and structural stability.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Performance of Regenerated Al2O3-Coated Cathode Material LiNi0.8Co0.15Al0.05O2 from Spent Power Lithium-Ion Batteries

Liu

Wang

et al. 2023

Molecules

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In this study, LiNi0.8Co0.15Al0.05O2@x%Al2O3-coated cathode materials were regeneratively compounded by the solid-phase sintering method, and their structural characterization and electrochemical performance were systematically analyzed. The regenerated ternary cathode material precursor synthesized by the co-precipitation method was roasted with lithium carbonate at a molar ratio of 1:1.1, and then completely mixed with different contents of aluminum hydroxide. The combined materials were then sintered at 800 °C for 15 h to obtain the regenerated coated cathode material, LiNi0.8Co0.15Al0.05O2@x%Al2O3. The thermogravimetry analysis, phase composition, morphological characteristics, and other tests show that when the added content of aluminum hydroxide is 3%, the regenerated cathode material, LiNi0.8Co0.15Al0.05O2@1.5%Al2O3, exhibits the highest-order layered structure with Al2O3 coating. This material can better inhibit the production of Ni2+, and improve material structure and electrochemical properties. The first charge–discharge efficiency of the battery assembled with this regenerated cathode material is 97.4%, a 50-cycle capacity retention is 93.4%, and a 100-cycle capacity retention is 87.6%. The first charge–discharge efficiency is far better than that of the uncoated regenerated battery.

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“…Electric vehicles typically use lithium-ion batteries (LIBs) because of their high energy density and extended cycle life. − Cathode materials are crucial determinants of the energy density in LIBs. In contrast to traditional cathode materials like LiCoO 2 , LiFePO 4 , and LiMn 2 O 4 , there has been a growing interest in Li[Ni 1– x–y Co x Mn y ]O 2 (where x + y ≤ 4) due to its ability to combine high energy density with cost-effective base materials.…”

Section: Introductionmentioning

confidence: 99%

Understanding Electrochemical Performance Enhancement with Quaternary NCMA Cathode Materials

Dong,

Liu,

Leng

et al. 2023

Langmuir

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Ni-rich cathode materials show promise for use in lithium-ion batteries. However, a significant obstacle to their widespread adoption is the structural damage caused by microcracks. This research paper presents the synthesis of Ni-rich cathode materials, including LiNi0.8Co0.1Mn0.1O2 (referred to as NCM) and Li(Ni0.8Co0.1Mn0.1)0.98Al0.02O2 (referred to as NCMA), achieved through the high-temperature solid-phase method. Electrochemical (EC) testing results reveal the impressive EC performance of NCMA. NCMA exhibited a discharge capacity of 141.6 mAh g–1 and maintained a cycle retention rate of up to 74.92% after 300 cycles at a 1 C rate. In contrast, the NCM had a discharge capacity of 109.7 mAh g–1 and a cycle retention rate of 61.22%. Atomic force microscopy showed that the Derjaguin−Muller−Toporov (DMT) modulus value of NCMA exceeded that of NCM, signifying a greater mechanical strength of NCMA. Density functional theory calculations demonstrated that the addition of aluminum during the delithiation process led to the mitigation of anisotropic lattice changes and the stabilization of the NCMA structure. This improvement was attributed to the relatively stronger Al–O bonds compared to the Ni(Co, Mn)–O bonds, which reduced the formation of microcracks by enhancing NCMA’s mechanical strength.

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LiFePO4 and LiMn2O4 nanocomposite coating of LiNi0.815Co0.15Al0.035O2 cathode material for high-performance lithium-ion battery

Cited by 14 publications

References 38 publications

A Functional Electrolyte Containing P‐Phenyl Diisothiocyanate (PDITC) Additive Achieves the Interphase Stability of High Nickel Cathode in a Wide Temperature Range

A Functional Electrolyte Containing P‐Phenyl Diisothiocyanate (PDITC) Additive Achieves the Interphase Stability of High Nickel Cathode in a Wide Temperature Range

Preparation and Performance of Regenerated Al2O3-Coated Cathode Material LiNi0.8Co0.15Al0.05O2 from Spent Power Lithium-Ion Batteries

Understanding Electrochemical Performance Enhancement with Quaternary NCMA Cathode Materials

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