Kinetic stabilization of a topotactically transformed texture morphology <i>via</i> doping in Ni-rich lithium layered oxides

Jung, Chan‐Hee; Jung, Chanwon; Lee, Jongwon; Oh, Juhyun; Shim, Hun; Kim, Wonsik; Lee, Eungjae; Kim, Miyoung; Choi, Pyuck‐Pa; Hong, Seong‐Hyeon

doi:10.1039/d2ta00538g

Cited by 6 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…W 6+ dopant can reduce lattice distortion and prolong the harmful phase transition, greatly stabilizing the LiNiO 2 structure during cycling. The 2 mol% W‐doping LiNiO 2 cathode delivered 195.6 mAh/g even after 100 cycles at 0.5 C, which was 95.5% of its initial capacity [78] . In addition, Jung et al [79] .…”

Section: Tailoring Strategies Of Ni‐rich Cathode Materials At Differe...mentioning

confidence: 94%

“…The 2 mol% W-doping LiNiO 2 cathode delivered 195.6 mAh/g even after 100 cycles at 0.5 C, which was 95.5% of its initial capacity. [78] In addition, Jung et al [79] doped P or B on the surface of particles and constructed amorphous oxide layer containing residual lithium, thus limiting the morphological transformation from textured to randomly oriented as a kinetic barrier.…”

Section: Element Dopingmentioning

confidence: 99%

See 1 more Smart Citation

Ni‐rich Cathode Materials for High‐performance Li‐ion Batteries: Challenges, Progress and Perspectives

Yang

Wang

et al. 2023

ChemNanoMat

View full text Add to dashboard Cite

Ni‐rich layered ternary oxides are considered as one of optimal cathode materials for lithium‐ion batteries because of high energy density and low raw material cost. However, their local structural defect, microstructural destruction and poor interfacial stability deteriorate the specific energy density, lifespan and safety of batteries. Therefore, understanding the root cause of failure and clarifying their relationship in depth can pave the way to promoting the modification and application of Ni‐rich cathode materials (NRCM). In this review, the chain‐like failure of NRCM triggered by multiple‐scaled structure variations are systematically analyzed based on their fundamental characteristic. Subsequently, current tailoring strategies of NRCM at different size scales are especially discussed. Finally, along with the concluding remarks and remaining challenges, the future development possibilities are discussed to stimulate the commercialization of NRCM.

show abstract

Section: Tailoring Strategies Of Ni‐rich Cathode Materials At Differe...mentioning

confidence: 94%

Section: Element Dopingmentioning

confidence: 99%

Ni‐rich Cathode Materials for High‐performance Li‐ion Batteries: Challenges, Progress and Perspectives

Yang

Wang

et al. 2023

ChemNanoMat

View full text Add to dashboard Cite

show abstract

Insights into the Microstructural Engineering of Cobalt‐Free, High‐Nickel Cathodes Based on Surface Energy for Lithium‐Ion Batteries

Kim

Shin

et al. 2023

Advanced Energy Materials

View full text Add to dashboard Cite

In order to reduce cost and increase energy density, it is critical to eliminate cobalt and increase nickel content in practicalLiNi 1−x−y Mn x Co y O 2 (NMC) and LiNi 1−x−y Co x Al y O 2 (NCA) cathodes. However, the implementation of cobalt-free, high-nickel layered oxide cathodes in lithium-ion batteries (LIBs) is hindered by the inherent issue of high surface reactivity with the electrolyte and microcrack formation during cycling. Herein, the origin of key parameters for microstructural engineering in cobalt-free LiNiO 2 (LNO) is comprehensively investigated with two representative dopants, B and Al. A notable difference in the segregation energy between B and Al results in different morphologies of LNO particles. The low solubility of B into the host structure leads to a surface-confined distribution of B, inhibiting the growth of primary particles, whereas the highly soluble Al facilitates primary particle growth. Recognition of this key parameter can help improve the cycle life of cobalt-free LIBs via microstructural engineering by increasing the aspect ratio inside the cathode particle. It is demonstrated that boron-doping in LNO (B-LNO) is the most effective dopant strategy for microstructural engineering of the primary particles. The B-LNO exhibits an excellent capacity retention of 81% in full cells after 300 cycles compared to both LNO and Al-doped LNO (Al-LNO).

show abstract

Doping Effects on Ternary Cathode Materials for Lithium‐Ion Batteries: A Review

Sun,

Chang,

Zheng

2024

ChemPhysChem

View full text Add to dashboard Cite

The ongoing advancements in lithium‐ion battery technology are pivotal in propelling the performance of modern electronic devices and electric vehicles. Amongst various components, the cathode material significantly influences the battery performance, such as the specific capacity, capacity retention and the rate performance. Ternary cathode materials, composed of nickel, manganese, and cobalt (NCM), offer a balanced combination of these traits. Recent developments focus on elemental doping, which involves substituting a fraction of NCM constituent ions with alternative cations such as aluminum, titanium, or magnesium. This strategic substitution aims to enhance structural stability, increase capacity retention, and improve resistance to thermal runaway. Doped ternary materials have shown promising results, with improvements in cycle life and operational safety. However, the quest for optimal doping elements and concentrations persists to maximize performance while minimizing cost and environmental impact, ensuring the progression towards high‐energy‐density, durable, and safe battery technologies.

show abstract

Kinetic stabilization of a topotactically transformed texture morphology via doping in Ni-rich lithium layered oxides

Abstract: Herein, a systematic investigation is conducted to unveil the role of phosphorus (P) or boron (B) doping on the development of radially aligned textured microstructure during the synthesis of LiNi0.92Co0.04Mn0.04O2...

Cited by 6 publications

References 57 publications

Ni‐rich Cathode Materials for High‐performance Li‐ion Batteries: Challenges, Progress and Perspectives

Ni‐rich Cathode Materials for High‐performance Li‐ion Batteries: Challenges, Progress and Perspectives

Insights into the Microstructural Engineering of Cobalt‐Free, High‐Nickel Cathodes Based on Surface Energy for Lithium‐Ion Batteries

Doping Effects on Ternary Cathode Materials for Lithium‐Ion Batteries: A Review

Contact Info

Product

Resources

About