Enhanced rate performance and cycle stability of LiNi0.6Co0.2Mn0.2O2 at high cut-off voltage by Li6.1La3Al0.3Zr2O12 surface modification

Cheng, Zhiyan; Lv, Fei; Liu, Ying; Xie, Huan; Wu, Mengtao; Ma, Yu; Zhang, Yufei; Chen, Li

doi:10.1016/j.apsusc.2020.146556

Cited by 20 publications

(9 citation statements)

References 41 publications

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“…The Ni, Co, Mn, Zr, and O elements are all presented and evenly distributed. The uniform distribution of doping elements is described in the literature [29,31,40]. Figure 9 displays the SEM of the cathode NCM and NCM-Zr0.96% after cycling.…”

Section: Resultsmentioning

confidence: 90%

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Enhancing the cycle stability of Zr-doped LiNi0.83Co0.12Mn0.05O2 by co-precipitation

Han

Zhao

et al. 2021

Ionics

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The ternary cathode material LiNi 0.83 Co 0.12 Mn 0.05 O 2 (NCM) has excellent properties, such as superior energy density, low cost, and high voltage platform. Recently, it becomes one of the research hotspots of lithium-ion batteries (LIBs). However, NCM has insufficient cycle stability and cannot meet the demand for the high-rate capability, which limits its application in energy storage equipment. The precursor of NCM was modified with (Ni 0.4 Co 0.2 Mn 0.4 ) 1−x Zr x (OH) 2 by the co-precipitation. After high-temperature sintering, the diffusion of Zr 4+ has significant impacts on the stability and capability for NCM. The doped sample exhibits a capacity retention rate of 79.5% at 1 C after 200 cycles and also delivers excellent rate performance, and the average specific discharge capacity is 189.4 mAh g −1 (2 C) and 180.6 mAh g −1 (5 C), respectively.

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Section: Resultsmentioning

confidence: 90%

“…3). In recent years, researchers have used different modified materials to coat the ternary positive electrode precursor to obtain better performance [19,[28][29][30][31][32] (Table 2). Li [28] XPS was conducted to analyze the superficial composition and element valence of NCM and NCM-Zr0.96% (Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the cycle stability of Zr-doped LiNi0.83Co0.12Mn0.05O2 by co-precipitation

Han

Zhao

et al. 2021

Ionics

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“…But, it should be kept in mind that the ionic conductivity gradient at the interface and bulk should be as minimum as possible. [80,81,83] In the past, Al 2 O 3 , [84] Li 4 Ti 5 O 12 (LTO), [85] LiNbO 3 (LNO), [27,28,86,87] and Li 6.1 La 3 Al 0.3 Zr 2 O 12 (LLAZO) [88] coatings have been done (Figure 6c); however, the decrease in ionic conductivity puts a major strain on the overall cycling performance of the cell. Due to a sharp decrease in ionic conductivities at the buffer layer and SSE interface, diffusion of Li ions will be hindered.…”

Section: Nanoscale Interfacial Engineering At the Cathodementioning

confidence: 99%

“…This abnormality usually arises when there is a mismatch in particle size or uneven coatings. [88,93,94] However, using a nanosized buffer layer, this can be mitigated, as nanosized coatings will introduce a much better interface. Using a similar strategy and sol-gel process for coating, Yi et al [95] introduced a nanosize LLTO (%10 À5 S cm À1 ) coating of 20 nm thickness on NCM-532.…”

Section: Nanoscale Interfacial Engineering At the Cathodementioning

confidence: 99%

Current Trends in Nanoscale Interfacial Electrode Engineering for Sulfide‐Based All‐Solid‐State Li‐Ion Batteries

et al. 2021

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All‐solid‐state Li‐ion batteries (ASSLBs) have been a topic of interest in the recent two decades for use in energy storage technologies. Among various types of solid electrolytes, sulfide‐based solid electrolytes (SSEs) have been regarded as the most promising electrolytes for practical ASSLBs due to their high ionic conductivity (>1 mS cm−1) and the possibility of high energy density cells (>500 Wh kg−1) using a currently available high capacity oxide cathode and a Li‐metal anode, as well as their nonflammable nature. However, SSEs are known to suffer from: 1) low electrochemical stability window; 2) parasitic interfacial reactions at oxide cathodes; 3) electrochemomechanical degradation at the interface; and 4) dendritic growth at bare Li‐metal anodes. Herein, a comprehensive review of specific strategies for high energy density ASSLBs is provided, focusing on the nanoscale interfacial engineering on oxide‐based cathode materials and Li‐metal anodes. Recent progresses in in situ‐based complex interfacial coatings, deposition techniques for synthesizing complex core–shell structures at oxide‐based cathode active materials, and lithiophilic seeding followed by dendrite protective coatings at anodes are mainly summarized. Finally, the perspectives for the development of high energy density sulfide‐based ASSLBs are highlighted.

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“…Electrochemical performances of Ni-rich cathode materials before and after ionic conductor coating.Cheng et al[332] Li6.1 La 3 Al 0.3 Zr 2 O 12 LiNi 0.6 Co 0.2 Mn 0.2 O 2 2 C 2.7-4.5 V 142 (initial) 54.7% (100 cycles) 166 (initial) 84.6% (100 cycles) Wang et al [333] Li 1.5 Al 0.5 Zr 1.5( PO 4 ) 3 LiNi 0.8 Co 0.1 Mn 0.1 O 2 1 C 2.8-4.3 V 214(initial) 52.3% (200 cycles) 211(initial) 84.8% (200 cycles) Qu et al [334] Li 1.3 Al 0.3 Ti 1.7( PO 4 ) 3 LiNi 0.8 Co 0.1 Mn 0.1 O 2 0.2 C 3.0-4.3 V 189 (initial) 67.39% (100 cycles) 195 (initial) 91.73% (100 cycles)…”

mentioning

confidence: 99%

Recent Advances in Enhanced Performance of Ni‐Rich Cathode Materials for Li‐Ion Batteries: A Review

et al. 2022

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High energy Li‐ion batteries (LIBs) have garnered substantial consideration in recent years for their utilization in many fields like communication, transportation, and aviation. As the cathode is the crucial component of LIBs, so by enhancing its electrochemical performance, the capacity, rate capability, as well as cyclability of batteries can be enhanced. Ni‐rich cathode materials (LiNi x Mn y Co1−x−y O2, x ≥ 0.5) have been accredited for their benefits in enhanced capacity, high working voltage, and low manufacturing cost. The high Ni content is accountable for the exceptional capacity but the utilization in the commercialized LIBs is mired by their electrochemical cycling issues like capacity fading, voltage decay, and safety hazard. To overcome these obstructions, a variety of methodologies have been adopted like doping, coating, and comodification of these cathode materials. An inclusive study of Ni‐rich cathode materials, their degradation mechanism, and the strategies is conferred, which have been employed in recent years to overcome the challenges faced by these materials in their commercialization.

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Enhanced rate performance and cycle stability of LiNi0.6Co0.2Mn0.2O2 at high cut-off voltage by Li6.1La3Al0.3Zr2O12 surface modification

Cited by 20 publications

References 41 publications

Enhancing the cycle stability of Zr-doped LiNi0.83Co0.12Mn0.05O2 by co-precipitation

Enhancing the cycle stability of Zr-doped LiNi0.83Co0.12Mn0.05O2 by co-precipitation

Current Trends in Nanoscale Interfacial Electrode Engineering for Sulfide‐Based All‐Solid‐State Li‐Ion Batteries

Recent Advances in Enhanced Performance of Ni‐Rich Cathode Materials for Li‐Ion Batteries: A Review

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