Structural design of high-performance Ni-rich LiNi0.83Co0.11Mn0.06O2 cathode materials enhanced by Mg2+ doping and Li3PO4 coating for lithium ion battery

Xiao, Wei; Nie, Yan; Miao, Chang; Wang, Jiale; Tan, Ying; Wen, Minyue

doi:10.1016/j.jcis.2021.09.067

Cited by 62 publications

(20 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The valences and chemical environments of Ni and O in the different LiNi 0.8 Co 0.15 Al 0.05 O 2 materials were analyzed by XPS, as shown in Figure . The Ni 2p 3/2 peaks could be divided into two main peaks, corresponding to Ni 3+ (∼856.0 eV) and Ni 2+ (∼854.7 eV), respectively. , The peak area ratio of Ni 3+ and Ni 2+ can be used to calculate the relative content of Ni 3+ . , In the O 1s XPS spectra, the peak at ∼531.9 eV represented the nonmetal oxygen containing hydroxyl and carbonyl groups, which originates from the residual Li on the cathode surface. Moreover, the peak at ∼529.4 eV corresponded to the lattice oxygen .…”

Section: Results and Discussionmentioning

confidence: 99%

“…The Ni 2p 3/2 peaks could be divided into two main peaks, corresponding to Ni 3+ (∼856.0 eV) and Ni 2+ (∼854.7 eV), respectively. 34,35 The peak area ratio of Ni 3+ and Ni 2+ can be used to calculate the relative content of Ni 3+ . 36,37 In the O 1s XPS spectra, the peak at ∼531.9 eV represented the nonmetal oxygen containing hydroxyl and carbonyl groups, 38 which originates from the residual Li on the cathode surface.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

Xiao

Chen

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Ni-rich cathode materials are a low-cost and high-energy density solution for high-power lithium-ion batteries. However, Li+/Ni2+ cation mixing and oxygen vacancies are inevitably formed during the high-temperature calcination process, resulting in a poor crystal structure that adversely affects the electrochemical performance. In this work, the LiNi0.8Co0.15Al0.05O2 cathode material with a regular crystal structure was prepared through oxygen pressurization during lithiation–calcination, which effectively solved the problems caused by the high calcination temperature, such as oxygen loss and a reduction of Ni3+. The co-effect of oxygen pressure and calcination temperature on the properties of Ni-rich materials was systematically explored. Oxygen pressurization increased the redox conversion temperature, thus promoting the oxidation of Ni2+ and reducing Li+/Ni2+ cation mixing. Moreover, due to the strong oxidizing environment provided by the elevated calcination temperature and oxygen pressurization, the LiNi0.8Co0.15Al0.05O2 material synthesized under 0.4 MPa oxygen pressure and a calcination temperature of 775 °C exhibited few oxygen vacancies, which in turn suppressed the formation of microcracks during the electrochemical cycling. An additional feature of the LiNi0.8Co0.15Al0.05O2 material was the small specific surface area of the particles, which reduced both the contact area with the electrolyte and side reactions. As a result, the LiNi0.8Co0.15Al0.05O2 material exhibited remarkable electrochemical performance, with an initial discharge capacity of 191.6 mA h·g–1 at 0.1 C and a capacity retention of 94.5% at 0.2 C after 100 cycles.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

Xiao

Chen

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The C 1s (Figure d) spectrum showcases that the peak intensities of Li 2 CO 3 (289.9 eV) in 3P-LRMO are significantly lower than those of the LRMO sample, indicating that phosphorylated modification can effectively consume the amount of residual lithium. As displayed in Figure e, the absorption peaks at 1362 and 1620 cm –1 in the LRMO are ascribed to the vibration of (CO 3 ) 2– from Li 2 CO 3 , and absorption at 3457 cm –1 is attributed to OH – of LiOH, respectively, hindering the migration of Li + and causing a large polarization . The peak intensities of Li 2 CO 3 and LiOH in 3P-LRMO are significantly lower than those of the normal sample.…”

Section: Resultsmentioning

confidence: 89%

In Situ Surface Coating and Oxygen Vacancy Dual Strategy Endowing a Li-Rich Li_1.2Mn_0.55Ni_0.11Co_0.14O₂ Cathode with Superior Lithium Storage Performance

Wang

Zhao

Zhou

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Lithium-rich Mn-based cathode materials are widely regarded as the next-generation cathode materials for high-energy-density lithium-ion batteries owing to their low cost and high specific capacity. Nonetheless, their commercial application is seriously hindered by low initial Coulombic efficiency, capacity loss, and voltage drop during long-term cycling. Herein, surface phosphorus doping and a mixture protective layer with oxygen vacancies (OVs) which consists of Li 3 PO 4 and LiMnPO 4 as a surfacecoating layer on the Li 1.2 Mn 0.55 Ni 0.11 Co 0.14 O 2 cathode material through a facile solid− gas reaction treatment, which can simultaneously optimize the surface chemical structure and deplete lithium impurity, is proposed. What is more, the dual strategy of surface engineering and OVs can improve electronic conductivity and regulate the ion diffusion rate. The dual-modified sample expresses a discharge capacity of 180.9 mA h g −1 with a capacity retention of 89.2% at 0.5 C after 250 cycles, which is better than that of the pristine sample (63.7%). This work provides a facile and effective method for surface coating design to improve other Li-rich manganese-based cathodes for rechargeable batteries.

show abstract

“…Other metals (e.g., Mn and Ni) are increasingly used in the cathode active material to replace cobalt and thereby reduce the overall material cost of batteries [40]. However, it may result in safety concerns and other issues.…”

Section: Challenges In the Materials Supply Chain Of Libsmentioning

confidence: 99%

Enabling Intelligent Recovery of Critical Materials from Li-Ion Battery through Direct Recycling Process with Internet-of-Things

Han

2021

Materials

View full text Add to dashboard Cite

The rapid market expansion of Li-ion batteries (LIBs) leads to concerns over the appropriate disposal of hazardous battery waste and the sustainability in the supply of critical materials for LIB production. Technologies and strategies to extend the life of LIBs and reuse the materials have long been sought. Direct recycling is a more effective recycling approach than existing ones with respect to cost, energy consumption, and emissions. This approach has become increasingly more feasible due to digitalization and the adoption of the Internet-of-Things (IoT). To address the question of how IoT could enhance direct recycling of LIBs, we first highlight the importance of direct recycling in tackling the challenges in the supply chain of LIB and discuss the characteristics and application of IoT technologies, which could enhance direct recycling. Finally, we share our perspective on a paradigm where IoT could be integrated into the direct recycling process of LIBs to enhance the efficiency, intelligence, and effectiveness of the recycling process.

show abstract

Structural design of high-performance Ni-rich LiNi0.83Co0.11Mn0.06O2 cathode materials enhanced by Mg2+ doping and Li3PO4 coating for lithium ion battery

Cited by 62 publications

References 41 publications

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

In Situ Surface Coating and Oxygen Vacancy Dual Strategy Endowing a Li-Rich Li_1.2Mn_0.55Ni_0.11Co_0.14O₂ Cathode with Superior Lithium Storage Performance

Enabling Intelligent Recovery of Critical Materials from Li-Ion Battery through Direct Recycling Process with Internet-of-Things

Contact Info

Product

Resources

About

Structural design of high-performance Ni-rich LiNi0.83Co0.11Mn0.06O2 cathode materials enhanced by Mg2+ doping and Li3PO4 coating for lithium ion battery

Cited by 62 publications

References 41 publications

Effects of Oxygen Pressurization on Li+/Ni2+ Cation Mixing and the Oxygen Vacancies of LiNi0.8Co0.15Al0.05O2 Cathode Materials

Effects of Oxygen Pressurization on Li+/Ni2+ Cation Mixing and the Oxygen Vacancies of LiNi0.8Co0.15Al0.05O2 Cathode Materials

In Situ Surface Coating and Oxygen Vacancy Dual Strategy Endowing a Li-Rich Li1.2Mn0.55Ni0.11Co0.14O2 Cathode with Superior Lithium Storage Performance

Enabling Intelligent Recovery of Critical Materials from Li-Ion Battery through Direct Recycling Process with Internet-of-Things

Contact Info

Product

Resources

About

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

Effects of Oxygen Pressurization on Li⁺/Ni²⁺ Cation Mixing and the Oxygen Vacancies of LiNi_0.8Co_0.15Al_0.05O₂ Cathode Materials

In Situ Surface Coating and Oxygen Vacancy Dual Strategy Endowing a Li-Rich Li_1.2Mn_0.55Ni_0.11Co_0.14O₂ Cathode with Superior Lithium Storage Performance