Enhanced electrochemical performance of Li3PO4 modified Li[Ni0.8Co0.1Mn0.1]O2 cathode material via lithium-reactive coating

Zhu, Jing; Li, Yunjiao; Xue, Longlong; Chen, Yong-Xiang; Lei, Tongxing; Deng, Shiyi; Cao, Guolin

doi:10.1016/j.jallcom.2018.09.237

Cited by 90 publications

(40 citation statements)

References 44 publications

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“…We can clearly distinguish that the relative intensity of the LiF for the 0.5 %‐B sample is much lower compared to that of the bare sample (Figure b). Thus, we can conclude that the side reactions during cycling are greatly hindered by the surface modification of the 0.5 %‐B sample, leading to the improved cycle stability …”

Section: Resultsmentioning

confidence: 94%

“…Thus, we can conclude that the side reactions during cycling are greatly hindered by the surface modification of the 0.5 %-B sample, leading to the improved cycle stability. [28]…”

Section: Resultsmentioning

confidence: 99%

“…Surface coating is regarded as a simple, direct and effective method to alleviate these issues. To date, metal oxides, metal fluoride, phosphates and graphene have been employed as surface coating layers to raise the interfacial stability. For example, a TiO 2 ‐coated LiNi 0.8 Co 0.15 Al 0.05 O 2 exhibited a higher capacity retention of 85 % after 200 cycles compared to that of a pristine electrode (only 36 %), and an Al 2 O 3 ‐coated LiNi 0.8 Co 0.15 Al 0.05 O 2 could deliver 195 mAh g −1 after 60 cycles at 2.8–4.5 V, whereas a pristine cathode only delivered 173 mAh g −1 .…”

Section: Introductionmentioning

confidence: 99%

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Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Zhuang

et al. 2020

ChemElectroChem

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Ni‐rich cathode is considered a promising cathode for its high specific capacity. However, a sharp capacity attenuation induced by interface problems limits the application of the cathode material. Herein, we propose a practical surface modification strategy by introducing diboron trioxide (B2O3) to the surface of LiNi0.83Co0.12Mn0.05O2 (NCM) cathode materials. B2O3‐modified NCM shows superior cyclic stability with a capacity retention of 87.7 % at 1 C after 200 cycles in comparison to 69.4 % for a bare NCM. On the basis of material and electrochemical characterizations, we conclude that the superior cycle stability of B2O3‐modified NCM material benefits from the formation of B2O3 coating and B3+ doping on the surface. The B2O3 coating layer that is confirmed by scanning and transmission electron microscopy can suppress surface side reactions and reduce the content of Li2CO3 on the surface. The B3+‐doping surface is verified by X‐ray diffraction and X‐ray photoelectron spectroscopy and triggers a reduction of a small amount of Ni3+ to Ni2+. Furthermore, the combination of surface B2O3 coating and B3+ doping inhibits the irreversible phase transitions and extension of microcracks in the NCM material. The above surface modification strategy provides a direction for the acquisition of long‐life cathode materials.

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Section: Resultsmentioning

confidence: 94%

“…Thus, we can conclude that the side reactions during cycling are greatly hindered by the surface modification of the 0.5 %-B sample, leading to the improved cycle stability. [28]…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Zhuang

et al. 2020

ChemElectroChem

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“…Coating materials with a good ionic or electronic conductivity, such as carbon,115 lithium ionic conductors (Li 3 PO 4 ,108,116 LiMn 1.9 Al 0.1 O 4 ,117 Li 3 VO 4 ,118,119 Li 2 SiO 3 ,106 Li 2 TiO 3 ,120 LiFePO 4 ,121 LiAlO 2 ,122 Li 2 ZrO 3 ,123–125 etc.) and conductive polymer (poly(ethylene glycol),126 polyacrylate,127 poly(3,4‐ethylenedioxythiophene),126 polyaniline,109,128 polypropylene,129 polypyrrole (PPy),130 etc.…”

Section: Fast Charging Capability Of Ni‐rich Ncmmentioning

confidence: 99%

“…In view of coating materials with the protection effect, representative examples are oxides (Al 2 O 3 , TiO 2 , ZrO 2 , CeO 2 , ZnO, MgO, etc. ),95,143,159,192,193,194 sulfides,45 fluoride,166,195 artificial CEI layers,168,196 artificial SEI layer,154 and phosphates 99,104,105,108,113,116,158,197…”

Section: Service Life Of Ni‐rich Ncm For Libsmentioning

confidence: 99%

Ni‐Rich/Co‐Poor Layered Cathode for Automotive Li‐Ion Batteries: Promises and Challenges

Wang

Ding

Deng

et al. 2020

Advanced Energy Materials

268

215

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To pursue a higher energy density (>300 Wh kg−1 at the cell level) and a lower cost (<$125 kWh−1 expected at 2022) of Li‐ion batteries for making electric vehicles (EVs) long range and cost‐competitive with internal combustion engine vehicles, developing Ni‐rich/Co‐poor layered cathode (LiNi1−x−yCoxMnyO2, x+y ≤ 0.2) is currently one of the most promising strategies because high Ni content is beneficial to high capacity (>200 mAh g−1) while low Co content is favorable to minimize battery cost. Unfortunately, Ni‐rich cathodes suffer from limited structure stability and electrode/electrolyte interface stability in the charged state, leading to electrode degradation and poor cycling performance. To address these problems, various strategies have been employed such as doping, structural optimization design (e.g., core–shell structure, concentration‐gradient structure, etc.), and surface coating. In this review, five key aspects of Ni‐rich/Co‐poor layered cathode materials are explored: energy density, fast charge capability, service life including cycling life and calendar life, cost and element resources, and safety. This enables a comprehensive analysis of current research advances and challenges from the perspective of both academy and industry to help facilitate practical applications for EVs in the future.

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Antimony Doping Enabled Radially Aligned Microstructure in LiNi_0.91Co_0.06Al_0.03O₂ Cathode for High‐Voltage and Low‐Temperature Lithium Battery

Lv,

Huang,

Zhang

et al. 2024

Adv Funct Materials

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Ni‐rich layered oxide cathode material with Ni contents greater than 90% is considered as a highly promising candidate for lithium‐ion batteries (LIBs) owing to its remarkable specific capacity and cost‐efficiency. However, severe capacity degradation caused by the structural collapse and interfacial instability with electrolyte under high voltage greatly hinders the practical application. Here, an antimony (Sb)‐doped LiNi0.91Co0.06Al0.03O2 (Sb‐NCA91) cathode is proposed, where the Sb doping modifies the morphology of primary particles and enables the radially aligned microstructure. This unique microstructure can disperse the anisotropic mechanical stress caused by the H2‐H3 phase transformation, and mitigate the shrinkage and expansion of the primary particles during high‐voltage and low‐temperature cycling, thus inhibiting the formation of microcracks and structural deterioration. Meanwhile, the closely arranged radial spokes allow fast ion transport in the secondary particles and effectively improve the rate performance and low‐temperature performance of the cathodes. As a result, the Sb modified cathode demonstrates superior capacity retention of ≈84% at 1 C after 200 cycles in 2.7–4.5 V at 25 °C, while the pristine NCA91 cathode only retains ≈79%. Additionally, the capacity retention at −20 °C is significantly increased from ≈61% (NCA91) to ≈88% (Sb‐NCA91) after 100 cycles.

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Enhanced electrochemical performance of Li3PO4 modified Li[Ni0.8Co0.1Mn0.1]O2 cathode material via lithium-reactive coating

Cited by 90 publications

References 44 publications

Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Ni‐Rich/Co‐Poor Layered Cathode for Automotive Li‐Ion Batteries: Promises and Challenges

Antimony Doping Enabled Radially Aligned Microstructure in LiNi_0.91Co_0.06Al_0.03O₂ Cathode for High‐Voltage and Low‐Temperature Lithium Battery

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Enhanced electrochemical performance of Li3PO4 modified Li[Ni0.8Co0.1Mn0.1]O2 cathode material via lithium-reactive coating

Cited by 90 publications

References 44 publications

Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi0.83Co0.12Mn0.05O2 Cathode with a B2O3 Surface Modification

Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi0.83Co0.12Mn0.05O2 Cathode with a B2O3 Surface Modification

Ni‐Rich/Co‐Poor Layered Cathode for Automotive Li‐Ion Batteries: Promises and Challenges

Antimony Doping Enabled Radially Aligned Microstructure in LiNi0.91Co0.06Al0.03O2 Cathode for High‐Voltage and Low‐Temperature Lithium Battery

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Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Realizing Superior Cycle Stability of a Ni‐Rich Layered LiNi_0.83Co_0.12Mn_0.05O₂ Cathode with a B₂O₃ Surface Modification

Antimony Doping Enabled Radially Aligned Microstructure in LiNi_0.91Co_0.06Al_0.03O₂ Cathode for High‐Voltage and Low‐Temperature Lithium Battery