Tuning the surface of LiNi0.8Co0.1Mn0.1O2 primary particle with lithium boron oxide toward stable cycling

Mo, Wenbin; Wang, Zhixing; Wang, Jiexi; Li, Xinhai; Guo, Huajun; Peng, Wenjie; Yan, Guochun

doi:10.1016/j.cej.2020.125820

Cited by 59 publications

(23 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Engineering the coating layer is regarded as an efficient method to boost the comprehensive electrochemical performance of the LIBs. The coating layer is considered as the protective layer at the cathode/electrolyte interface: it strengthens the crystal structural stability and adjusts the interface chemistry to mitigate the TMs’ dissolution and other side reactions; it improve the Li + diffusion; and it further mitigates the cathode materials’ degradation and electrolyte decomposition. − Therefore, many types of coating materials, including metal oxides, fluorides, and Li conductive metal oxides, have been exploited to improve electrochemical performance by impeding side reactions or improving electrical conductivity. − Usually, nonelectrochemical active coating layer such as metal oxides, -fluorides, and -phosphates, in which the metal has no variational property, have been regarded as an efficient method to boost the comprehensive electrochemical property of the LRM oxide cathode materials. With regard to these coating layers, it mainly function as a defensive layer to mitigate the cathode materials degradation and the electrolyte decomposition.…”

Section: Challenges and Possible Solutions Of Li-rich Mn-based Oxide ...mentioning

confidence: 99%

Demystifying the Lattice Oxygen Redox in Layered Oxide Cathode Materials of Lithium-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

The practical application of lithium-ion batteries suffers from low energy density and the struggle to satisfy the ever-growing requirements of the energy-storage Internet. Therefore, developing next-generation electrode materials with high energy density is of the utmost significance. There are high expectations with respect to the development of lattice oxygen redox (LOR)a promising strategy for developing cathode materials as it renders nearly a doubling of the specific capacity. However, challenges have been put forward toward the deep-seated origins of the LOR reaction and if its whole potential could be effectively realized in practical application. In the following Review, the intrinsic science that induces the LOR activity and crystal structure evolution are extensively discussed. Moreover, a variety of characterization techniques for investigating these behaviors are presented. Furthermore, we have highlighted the practical restrictions and outlined the probable approaches of Li-based layered oxide cathodes for improving such materials to meet the practical applications.

show abstract

Section: Challenges and Possible Solutions Of Li-rich Mn-based Oxide ...mentioning

confidence: 99%

Demystifying the Lattice Oxygen Redox in Layered Oxide Cathode Materials of Lithium-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Coating is an effective way to ameliorate interfacial-parasitic reactions, and is widely utilized in PC-NRCMs. [141][142][143] In the aspect of SC-NRCMs applied at high voltage, metal oxides [56] and lithium salts [130] are popular coating materials. Huang et al [56] demonstrated that a thin MnO 2 layer formed on the surface of SC-NMC811 obviously suppressed parasitic reactions owing to decreasing the direct contact between electrolyte and cathode materials.…”

Section: Parasitic Reactionsmentioning

confidence: 99%

Research Progress of Single‐Crystal Nickel‐Rich Cathode Materials for Lithium Ion Batteries

et al. 2021

Self Cite

View full text Add to dashboard Cite

Single-crystal nickel-rich cathode materials (SC-NRCMs) are the most promising candidates for next-generation power batteries which enable longer driving range and reliable safety. In this review, the outstanding advantages of SC-NRCMs are discussed systematically in aspects of structural and thermal stabilities. Particularly, the intergranular-crack-free morphology exhibits superior cycling performance and negligible parasitic reactions even under severe conditions. Besides, various synthetic methods are summarized and the relation between precursor, sintering process, and final single-crystal products are revealed, providing a full view of synthetic methods. Then, challenges of SC-NRCMs in fields of kinetics of lithium diffusion and the one particularly occurred at high voltage (intragranular cracks and aggravated parasitic reactions) are discussed. The corresponding mechanism and modifications are also referred. Through this review, it is aimed to highlight the magical morphology of SC-NRCMs for application perspective and provide a reference for following researchers.

show abstract

“…Considering the recent achievements and applications of boron-based modifications on Ni-rich NCM materials to mitigate the inherent poor cycling stability problem by inducing the microstructure of particles, moreover, allow for an advanced structural and thermal stability of the resulting cathodes. [39][40][41][42] Herein, we construct a LiBO 2 À B 2 O 3 co-modified coating on the SC-NCM surface by virtue of the reactions of H 3 BO 3 with the predominant formation of LiOH or Li 2 CO 3 as well as the decomposition of H 3 BO 3 itself at high temperature. It was confirmed that the successful applying of LiBO 2 À B 2 O 3 continuous coating on SC-NCM (hereafter termed as 1-NCM@LBO) offers a significant superiority of lithium de-/intercalation kinetics and rate capability.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of a 4.7 V High‐Voltage Nickel‐Rich Layered Oxide Cathode for Lithium‐Ion Batteries through Boron‐Based Surface Residual Lithium‐Tuned Interface Modification Engineering

Wang

et al. 2021

ChemElectroChem

View full text Add to dashboard Cite

Residual lithium on the surface and the resulting side reactions for high-energy-density Ni-rich layered oxide cathodes principally impede their industrial application and trigger safety concerns. Herein, the successful construction of LiBO 2 À B 2 O 3 comodified single-crystal LiNi 0.6 Co 0.2 Mn 0.2 O 2 (SC-NCM) as a lithiumion battery (LIB) cathode is reported. Boric acid reacts with the surface residual lithium species to form such uniform coating on the SC-NCM particles, which presents advanced rate and cycling capabilities. As the cathode materials for LIBs, LiBO 2 À B 2 O 3 co-modified SC-NCM delivers a 141.9 mAh g À 1 discharge specific capacity at 5 C between 3.0 and 4.5 V versus Li + /Li with 61.4 % capacity retention after 500 cycles, superior to the 20.8 % retention for the pristine SC-NCM cathode. Besides, the LiBO 2 -B 2 O 3 protective layer substantially inhibits the unexpected phase transformation, effectively alleviates the mechanical microcracks, and stabilizes the cathode-electrolyte interface, even at an extended operational potential window. The proposed microstructure-modified SC-NCM cathode provides an affordable and feasible design strategy for Ni-rich SC-NCM cathodes towards stable electrochemical performance and prolonged service life at high potential.

show abstract

Tuning the surface of LiNi0.8Co0.1Mn0.1O2 primary particle with lithium boron oxide toward stable cycling

Cited by 59 publications

References 49 publications

Demystifying the Lattice Oxygen Redox in Layered Oxide Cathode Materials of Lithium-Ion Batteries

Demystifying the Lattice Oxygen Redox in Layered Oxide Cathode Materials of Lithium-Ion Batteries

Research Progress of Single‐Crystal Nickel‐Rich Cathode Materials for Lithium Ion Batteries

Stabilization of a 4.7 V High‐Voltage Nickel‐Rich Layered Oxide Cathode for Lithium‐Ion Batteries through Boron‐Based Surface Residual Lithium‐Tuned Interface Modification Engineering

Contact Info

Product

Resources

About