A scalable dry chemical method for lithium borate coating to improve the performance of LiNi0.90Co0.06Mn0.04O2 cathode material

Tan, Xinxin; Peng, Wenjie; Duan, Hui; Wang, Zhixing; Guo, Huajun; Luo, Guangsheng; Run-zhang, Yuan; Li, Xinhai; Wang, Jiexi

doi:10.1007/s11581-022-04484-9

Cited by 3 publications

(4 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most frequently attempted approach for improving the cycling behavior of the cell is to embed functional coating layers onto the LN cathode materials. For instance, metal oxides, such as manganese oxides, boron oxides, and tungsten oxides, have been selected as the most attractive coating materials for improving the cycling retention because these coating materials effectively mitigate electrolyte decomposition during cycling by decreasing the reactive interfaces between the electrolyte and the LN cathode. In addition, phosphate- or sulfate-based coating precursors have also received substantial attention as effective surface modifiers for LN cathodes because they can reduce oxygen release in the cell and facilitate Li + migration via ion-hopping mechanisms in addition to preventing electrolyte decomposition .…”

Section: Introductionmentioning

confidence: 99%

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

Ahn

Lee

Kim

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Many advances made in recent years have highlighted Ni-enriched nickel, cobalt, manganese (NCM) material as a prospective positive electrode material for lithium-ion batteries. However, prolonged cycling is limited by several critical issues, including surface instability, gas generation, and transitional metal dissolution upon cycling. Here, we propose a simple interfacial modification approach that uses 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POS) as a coating precursor to improve surface stability. A one-step thermal heat treatment creates bifunctional cathode electrolyte interphase (CEI) layers from F- and Si-functionalized POS, especially at the edge sites of the Ni-enriched NCM cathode, where serious undesired reactions occur during cycling. The POS-modified Ni-enriched NCM cathode exhibits improved cycling retention compared to the unmodified Ni-enriched NCM cathode because parasitic reactions are well suppressed upon cycling. Systematic analyses show an apparent inhibition of electrolyte decomposition in the POS-modified Ni-enriched NCM cathode due to the effective protection of the active edge sites by the artificial POS-derived CEI layers. The dissolution of metal components is also greatly decreased because the Si-functional groups that develop on the POS-derived CEI layers selectively scavenge F– species formed by electrolyte decomposition.

show abstract

Section: Introductionmentioning

confidence: 99%

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

Ahn

Lee

Kim

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…To solve this issue, researchers have introduced lithium-containing compounds with high Li + conductivity for surface modification. These compounds include LiCoO 2 [184], LiNi 0.333 Co 0.333 Mn 0.333 O 2 [185], Li 2 ZrO 3 [186][187][188], LiZr 2 (PO 4 ) 3 [189], LiAlO 2 [190], Li 2 SiO 3 [191], Li 2 MnO 3 [192], LiNbO 3 [193,194], LiFePO 4 [195,196], Li 3 PO 4 [197][198][199], LiH 2 PO 4 [200], LiBO [201,202], and LLAO [203]. Yang et al [188] utilized the Couette-Taylor reaction to deposit a surfacecoated Li 2 ZrO 3 layer onto LiNi 0.90 Co 0.04 Mn 0.03 Al 0.03 O 2 (NCMA), with a thickness of approximately 2.5 nm.…”

Section: Interfacial Modification By Surface Coatingmentioning

confidence: 99%

“…The coated NCA exhibited a significantly improved cycling retention rate of 96.1% and 90.5% at 25 • C and 55 • C, respectively. Wang et al [202] prepared LiNi 0.90 Co 0.06 Mn 0.04 O 2 coated with LBO via a dry process. The coating reduced the direct contact between the cathode material and the electrolyte, suppressing structural degradation and surface impedance.…”

Section: Interfacial Modification By Surface Coatingmentioning

confidence: 99%

High-Performance High-Nickel Multi-Element Cathode Materials for Lithium-Ion Batteries

Tian,

Guo,

Bai

et al. 2023

Batteries

View full text Add to dashboard Cite

With the rapid increase in demand for high-energy-density lithium-ion batteries in electric vehicles, smart homes, electric-powered tools, intelligent transportation, and other markets, high-nickel multi-element materials are considered to be one of the most promising cathode candidates for large-scale industrial applications due to their advantages of high capacity, low cost, and good cycle performance. In response to the competitive pressure of the low-cost lithium iron phosphate battery, high-nickel multi-element cathode materials need to continuously increase their nickel content and reduce their cobalt content or even be cobalt-free and also need to solve a series of problems, such as crystal structure stability, particle microcracks and breakage, cycle life, thermal stability, and safety. In this regard, the research progress of high-nickel multi-element cathode materials in recent years is reviewed and analyzed, and the progress of performance optimization is summarized from the aspects of precursor orientational growth, bulk phase doping, surface coating, interface modification, crystal morphology optimization, composite structure design, etc. Finally, according to the industrialization demand of high-energy-density lithium-ion batteries and the challenges faced by high-nickel multi-element cathode materials, the performance optimization direction of high-nickel multi-element cathode materials in the future is proposed.

show abstract

“…When cycled within the same operating voltage window, the magnitude of this abrupt lattice shinkage of cathode materials increases with increasing Ni content. , This abrupt lattice shrinkage causes the accumulation of local stress concentrations within catode particles, which leads to cracking along the interparticle boundaries. , Interparticle cracking is observed even in the first charged state for NCA and NCM cathodes, which have Ni contents greater than 90%. Although various doping and surface coating schemes have been proposed, − it has proven difficult to completely suppress the interparticle cracking upon charging because the abrupt lattice contraction in the deeply charged state is an intrinsic property of the Ni-rich layered cathode. A single-crystalline (SC) cathode having no interparticle boundaries has been effective in stabilizing the charged structure.…”

mentioning

confidence: 99%

Structural Stability of Single-Crystalline Ni-Rich Layered Cathode upon Delithiation

et al. 2022

View full text Add to dashboard Cite

Single-crystalline (SC) Li[Ni1–x–y Co x Mn y ]O2 (NCM) cathodes are an effective solution for countering the interparticle cracking of Ni-rich NCM cathodes with Ni < 80%. Transmission electron microscopy analysis indicates that no irreversible structural damage is observed when the SC-Li[Ni0.7Co0.15Mn0.15]O2 NCM cathode is charged to 4.3 V. However, in the charged SC-Li[Ni0.9Co0.05Mn0.05]O2 cathode the internal strain generated by the H2 → H3 transition is aggravated by the slow migration rate of Li ions, which produced nonuniform Li distributions and structural inhomogeneities. The charged SC-Li[Ni0.9Co0.05Mn0.05]O2 cathode experiences intraparticle cracking at a microscopic scale, and submicroscopic cracks appear at the boundaries among multiple phases present in the charged state even after the first charge. We suggest that a slow rate of Li extraction or particle size reduction would ameliorate the structural defects at the end of charging and improve the cycling stability for Ni-rich SC-layered cathodes Ni > 90%.

show abstract

A scalable dry chemical method for lithium borate coating to improve the performance of LiNi0.90Co0.06Mn0.04O2 cathode material

Cited by 3 publications

References 58 publications

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

High-Performance High-Nickel Multi-Element Cathode Materials for Lithium-Ion Batteries

Structural Stability of Single-Crystalline Ni-Rich Layered Cathode upon Delithiation

Contact Info

Product

Resources

About

A scalable dry chemical method for lithium borate coating to improve the performance of LiNi0.90Co0.06Mn0.04O2 cathode material

Cited by 3 publications

References 58 publications

Edge-Protected Ni-Enriched LiNixCoyMnzO2 Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

Edge-Protected Ni-Enriched LiNixCoyMnzO2 Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

High-Performance High-Nickel Multi-Element Cathode Materials for Lithium-Ion Batteries

Structural Stability of Single-Crystalline Ni-Rich Layered Cathode upon Delithiation

Contact Info

Product

Resources

About

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier

Edge-Protected Ni-Enriched LiNi_xCo_yMn_zO₂ Cathode Materials by Interface Modification with a Si- and F-Functionalized Surface Modifier