Proceedings of the National Academy of Sciences, Vol.140, Issue 7 Įnergetic basis for the molecular-scale organization of bone

Journal of The Electrochemical Society, Vol.121, Issue 6 Įlectrochemistry and Structural Chemistry of LiNiO (R3m) for 4 Volt Secondary Lithium Cells

The Journal of Physical Chemistry C, Vol.

Kim, Un-Hyuck Myung, Seung-Taek Yoon, Chong S.Īnisotropic Lattice Strain and Mechanical Degradation of High- and Low-Nickel NCM Cathode Materials for Li-Ion Batteries.

63 Įxtending the Battery Life Using an Al-Doped LiO 2 Cathode with Concentration Gradients for Lithium Ion Batteries

Mukhopadhyay, Amartya Sheldon, Brian W.

8, Issue 1 ĭeformation and stress in electrode materials for Li-ion batteries Intragranular cracking as a critical barrier for high-voltage usage of layer-structured cathode for lithium-ion batteries Intergranular Cracking as a Major Cause of Long-Term Capacity Fading of Layered Cathodes

Kim, Un-Hyuck Kim, Jae-Hyung Hwang, Jang-Yeon.

Park, Kang-Joon Hwang, Jang-Yeon Ryu, Hoon-HeeĬompositionally and structurally redesigned high-energy Ni-rich layered cathode for next-generation lithium batteries.

30, Issue 3 ĭegradation Mechanism of Ni-Enriched NCA Cathode for Lithium Batteries: Are Microcracks Really Critical?

Ryu, Hoon-Hee Park, Kang-Joon Yoon, Chong S.

Metal segregation in hierarchically structured cathode materials for high-energy lithium batteriesĬapacity Fading of Ni-Rich LiO 2 (0.6 ≤ x ≤ 0.95) Cathodes for High-Energy-Density Lithium-Ion Batteries: Bulk or Surface Degradation? Microstructural study on degradation mechanism of layered LiNi0.6Co0.2Mn0.2O2 cathode materials by analytical transmission electron microscopy

Zhang, Zhengcheng Hu, Libo Wu, Huiming.

9, Issue 41 Ĭurrent Status and Outlook in the Application of Microalgae in Biodiesel Production and Environmental ProtectionĪ Review on Lithium-Ion Batteries Safety Issues: Existing Problems and Possible Solutionsįluorinated electrolytes for 5 V lithium-ion battery chemistry

Kong, Defei Hu, Jiangtao Chen, Zhefeng.

Ti‐Gradient Doping to Stabilize Layered Surface Structure for High Performance High‐Ni Oxide Cathode of Li‐Ion Battery Storage Characteristics of LiNiCoMnO (x=0, 0.03, and 0.06) Cathode Materials for Lithium Batteries

Yan, Pengfei Zheng, Jianming Liu, Jian.

Tailoring grain boundary structures and chemistry of Ni-rich layered cathodes for enhanced cycle stability of lithium-ion batteries

Xu, Gui-Liang Liu, Qiang Lau, Kenneth K.

This mesoscale nano-grain architecture controlled cracking process highlights the importance of predictive synthesis of cathode materials with controllable multiscale crystalline architecture for high-performance = ,īuilding ultraconformal protective layers on both secondary and primary particles of layered lithium transition metal oxide cathodes

The further growth and aggregation of microcracks into macrocrack eventually results in microfracture propagation radially outward to the periphery region with more uniform nano-grain orientation. These microcracks preferentially nucleate at the core region with random oriented nano-grains in early stage. In this study, the irreversible, anisotropic cycling lattice and mesoscale expansion/shrinkage of nano-grains during the first cycle, as revealed by in situ X-ray diffraction (XRD) and in situ atomic force microscopy (AFM), have been quantified and confirmed to be the dominant driving forces of microcracks initiation at the grain boundaries. However, the initiation and evolution of those cracks is still controversial due to the limited quantification especially by in situ monitoring, leading to the challenge of identifying an efficient approach to inhibit the formation of the fractures during repeated cycling. The cracking phenomenon of Ni-rich NMC (LiNi xMn圜o 1-x-yO 2, x ≥ 0.6) secondary particles is frequently discovered and believed to be one of critical reasons deteriorating the long-term cycling stability of NMC cathode in lithium ion batteries (LIBs).

X particles 4 crack mac