A stable dual LiAlO2/Li2SiO3 coating LiNi0.8Co0.1Mn0.1O2 cathode towards ultra-long-life and wide-temperature lithium-ion battery

He, Xiao-Gang; Luo, Hang; Yong, Kai; Ye, Meng; Zhang, Yun

doi:10.1016/j.est.2023.107872

Cited by 11 publications

(2 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure d shows the fine XPS spectra of B 1s of NM90-1%AB material, with the characteristic peaks at binding energies of 191.7 and 192.7 eV corresponding to LiBO 2 and B 2 O 3 , respectively. , It is noteworthy that the fitting results indicate a very low content of B 2 O 3 . In Figure e, the fine XPS spectrum of Al 2p shows the characteristic peaks at 73 and 74.2 eV corresponding to LiAlO 2 and Al 2 O 3 , respectively. , Interestingly, the fitting results show the absence of the characteristic peak of Al 2 O 3 . We speculate that appropriate coating leads to the formation of LiAlO 2 through an Al 2 O 3 reaction with residual lithium on the surface.…”

Section: Resultsmentioning

confidence: 91%

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

Zhang,

Huang,

Tang

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Ultrahigh nickel cobalt-free cathode materials have high energy density and are very promising materials for application in lithium-ion batteries. However, they face severe challenges of overall degradation in the interface/lattice structure stability during charge and discharge, resulting in poor safety and a short cycle life. In this paper, the B/Al codoping/coating is applied to LiNi 0.9 Mn 0.1 O 2 (NM90). The LiAlO 2 /LiBO 2 coating formed in situ by B/Al and surface residual alkali helps to reduce O 2 evolution and restrain side reactions on surface. The B/Al codoping resulting from hightemperature thermal diffusion significantly expands the layer spacing, thus improving the Li + diffusion rate. After 300 cycles, the optimized NM90-1% AB material achieves 86.5% capacity retention (1 C, 2.7− 4.3 V, 25 °C) compared to 68.5% for the pristine NM90 material. Furthermore, its capacity retention can reach 84.7% after 300 cycles at 4.4 V and 5 C, which is much higher than the 58.9% of NM90 material. Even at 10 C, the specific discharge capacity of the NM90-1% AB material can still reach 155.1 mA h/g, but the NM90 material only has 142.8 mA h/g. It is obvious that the B/Al codoped/coated strategy can enhance the interface/lattice structural stability of NM90 material.

show abstract

Section: Resultsmentioning

confidence: 91%

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

Zhang,

Huang,

Tang

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…36 In addition, the two intensity ratios (I ratio : 1.57 and 1.46, respectively) of the (003) to (104) peaks are more significant than 1.2, confirming the low degree of cation mixing; 37 consequently, the transport of Li + ions among the NCM811 cathode materials will be improved. 38 These two cathode powder materials showed slight differences in their lattice parameters, indicating that the NCM811 structure was well maintained after surface modification.…”

Section: Sample Characterizationmentioning

confidence: 94%

Concerted Effect of Ion- and Electron-Conductive Additives on the Electrochemical and Thermal Performances of the LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material Synthesized by a Taylor-Flow Reactor for Lithium-Ion Batteries

Mengesha,

Jeyakumar,

Hendri

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

To address the issue that a single coating agent cannot simultaneously enhance Li +ion transport and electronic conductivity of Ni-rich cathode materials with surface modification, in the present study, we first successfully synthesized a LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode material by a Taylor-flow reactor followed by surface coating with Li-BTJ and dispersion of vaporgrown carbon fibers treated with polydopamine (PDA-VGCF) filler in the composite slurry. The Li-BTJ hybrid oligomer coating can suppress side reactions and enhance ionic conductivity, and the PDA-VGCFs filler can increase electronic conductivity. As a result of the synergistic effect of the dual conducting agents, the cells based on the modified NCM811 electrodes deliver superior cycling stability and rate capability, as compared to the bare NCM811 electrode. The CR2032 coin-type cells with the NCM811@Li-BTJ + PDA-VGCF electrode retain a discharge specific capacity of ∼92.2% at 1C after 200 cycles between 2.8 and 4.3 V (vs Li/Li + ), while bare NCM811 retains only 84.0%. Moreover, the NCM811@Li-BTJ + PDA-VGCF electrode-based cells reduced the total heat (Q t ) by ca. 7.0% at 35 °C over the bare electrode. Remarkably, the Li-BTJ hybrid oligomer coating on the surface of the NCM811 active particles acts as an artificial cathode electrolyte interphase (ACEI) layer, mitigating irreversible surface phase transformation of the layered NCM811 cathode and facilitating Li + ion transport. Meanwhile, the fiber-shaped PDA-VGCF filler significantly reduced microcrack propagation during cycling and promoted the electronic conductance of the NCM811-based electrode. Generally, enlightened with the current experimental findings, the concerted ion and electron conductive agents significantly enhanced the Ni-rich cathode-based cell performance, which is a promising strategy to apply to other Ni-rich cathode materials for lithium-ion batteries.

show abstract

Superionic lithium argyrodite-type sulfide electrolyte with optimized composite cathode fabrication enabling stable All-Solid-State Batteries

Ming,

Li,

Wei

et al. 2024

Applied Materials Today

View full text Add to dashboard Cite

A stable dual LiAlO2/Li2SiO3 coating LiNi0.8Co0.1Mn0.1O2 cathode towards ultra-long-life and wide-temperature lithium-ion battery

Cited by 11 publications

References 58 publications

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

Concerted Effect of Ion- and Electron-Conductive Additives on the Electrochemical and Thermal Performances of the LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material Synthesized by a Taylor-Flow Reactor for Lithium-Ion Batteries

Superionic lithium argyrodite-type sulfide electrolyte with optimized composite cathode fabrication enabling stable All-Solid-State Batteries

Contact Info

Product

Resources

About

A stable dual LiAlO2/Li2SiO3 coating LiNi0.8Co0.1Mn0.1O2 cathode towards ultra-long-life and wide-temperature lithium-ion battery

Cited by 11 publications

References 58 publications

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

B/Al Codoped/Coated Ultra-High Nickel Cobalt-Free Material with Excellent High Voltage/Rate Cycle Stability

Concerted Effect of Ion- and Electron-Conductive Additives on the Electrochemical and Thermal Performances of the LiNi0.8Co0.1Mn0.1O2 Cathode Material Synthesized by a Taylor-Flow Reactor for Lithium-Ion Batteries

Superionic lithium argyrodite-type sulfide electrolyte with optimized composite cathode fabrication enabling stable All-Solid-State Batteries

Contact Info

Product

Resources

About

Concerted Effect of Ion- and Electron-Conductive Additives on the Electrochemical and Thermal Performances of the LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material Synthesized by a Taylor-Flow Reactor for Lithium-Ion Batteries