B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery

Lv, Yao; Huang, Shan; Lu, Sirong; Ding, Wenbo; Yu, Xiaoliang; Liang, Gemeng; Zou, Jinshuo; Kang, Feiyu; Zhang, Jiujun; Cao, Yidan

doi:10.1016/j.jpowsour.2022.231510

Cited by 29 publications

(15 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LiBO 2 has been widely adopted as a coating material for its high chemical stability originating from the strong B−O bond and fast Li-ion conductivity to enhance the electrochemical properties of Ni-rich cathode material. 28,29,32,42,43 These observations from STEM images provide reliable and solid evidence of the surface reconstruction. Although LiBO 2 has been intensively studied as a coating material, the finding in the in situ formation of the LiBO 2 layer and spinel phase has not been reported to our best knowledge.…”

Section: = [ ]mentioning

confidence: 58%

“…The peak centered at 191.8 eV in B 1s spectra in Figure S2a can be ascribed to the LiBO 2 component, while the result of P-NCM811 shows no peak in B 1s spectra. LiBO 2 has been widely adopted as a coating material for its high chemical stability originating from the strong B–O bond and fast Li-ion conductivity to enhance the electrochemical properties of Ni-rich cathode material. ,,,, …”

Section: Resultsmentioning

confidence: 99%

“…24,25 As for the coating agent, LiBO 2 is the most adopted lithium-containing boron compound. 28,29 It is considered as an excellent coating material owing to its high ionic conductivity (∼10 −5 S•cm −1 ), chemical inertness, and electrochemical stability (up to 4.4 V). 30,34 Hence, these strategies can enhance the cycling performance and rate capability of the Ni-rich cathode material.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

Guo,

Shi,

Cao

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Ni-rich cathode materials exhibit superior energy densities and have attracted interest among both research and industrial fields; whereas, their practical application is hindered by the intrinsic drawbacks brought by the high nickel content such as structural instability and rapid capacity fading. Herein, in situ formation of a LiBO 2 coating layer and spinel phase layer is achieved on the surface of a Ni-rich cathode material via a boric acid etching method at the precursor state. The spinel phase is considered to have a 3D lithium diffusion tunnel and hence faster diffusion kinetics. Moreover, the LiBO 2 layer possesses excellent (electro)chemical inertness and can suppress electrolyte decomposition, resulting in a more inorganic and stable cathode−electrolyte interface. The surface reconstructed sample exhibits better cyclic stability (93.3% capacity retention vs 85.3% for the pristine sample at 1 C for 100 cycles) and rate performance. The superiority of this surface reconstruction is demonstrated by a series of electrochemical techniques and characterization methods including high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), post-mortem X-ray photoelectron spectroscopy (XPS) analysis, and density functional theory (DFT) calculations.

show abstract

Section: = [ ]mentioning

confidence: 58%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

Guo,

Shi,

Cao

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Compared with NCM, the lattice oxygen content of P2‐NCM was significantly increased, indicating that the dissolution of transition metal ions was effectively inhibited. [ 5,43 ] In addition, the lower content of CO 2‐ 3 further demonstrated the reduction of side reactions on the surface of the cathode material. In conclusion, PVP was successfully introduced into the NCM surface, whose positive role of the coordination anchoring effect was directly confirmed, and surface modification did not affect the valence environment of each element.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, Figure5c,dshows the XPS spectra of O 1s and C 1s, respectively. Compared with NCM, the lattice oxygen content of P2-NCM was significantly increased, indicating that the dissolution of transition metal ions was effectively inhibited [5,43]. In addition, the lower content of CO2- 3 further demonstrated the reduction of side reactions on the surface of the cathode material.…”

mentioning

confidence: 98%

Coordination Anchoring Effect Promoting the Interfacial Stability and Electrochemical Performance of LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material for Lithium‐Ion Batteries

Zhang

et al. 2022

Energy Tech

View full text Add to dashboard Cite

LiNi0.8Co0.1Mn0.1O2 (NCM811), as a typical nickel‐rich ternary material, has attracted wide attention due to its high discharge specific capacity. However, the strict storage environment and interface instability caused by residual alkali on the surface limit the further development. Surface coating is usually used to modify the surface of cathode materials to improve interface stability. However, traditional inorganic coating is easy to fall off due to a lack of stable chemical bonding, and the interaction force of previous organic coating has not been thoroughly studied. Herein, polyvinyl pyrrolidone with carbonyl functional groups is introduced on the surface of NCM811, and the carbonyl group forms strong coordination bonds with transition metal ions, that is, the organic coating layer forms stable coordination anchoring with the cathode material, which greatly reduces the situation where the coating layer is easy to fall off. At the same time, the implanted organic coating can inhibit the dissolution of transition metal ions and mitigate the side reaction. The results show that the capacity retention rate of the modified material reaches 86.82% after 50 cycles at 1 C rate. This novel surface modification strategy provides a new insight for the modification of high‐nickel cathode materials.

show abstract

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery

Cited by 29 publications

References 45 publications

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

Coordination Anchoring Effect Promoting the Interfacial Stability and Electrochemical Performance of LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material for Lithium‐Ion Batteries

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

Contact Info

Product

Resources

About

B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery

Cited by 29 publications

References 45 publications

In Situ Formation of a LiBO2 Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

In Situ Formation of a LiBO2 Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

Coordination Anchoring Effect Promoting the Interfacial Stability and Electrochemical Performance of LiNi0.8Co0.1Mn0.1O2 Cathode Material for Lithium‐Ion Batteries

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

Contact Info

Product

Resources

About

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

In Situ Formation of a LiBO₂ Coating Layer and Spinel Phase for Ni-Rich Cathode Materials from a Boric Acid-Etched Precursor

Coordination Anchoring Effect Promoting the Interfacial Stability and Electrochemical Performance of LiNi_0.8Co_0.1Mn_0.1O₂ Cathode Material for Lithium‐Ion Batteries

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