Effect of lithium silicate addition on the micro-structure and crack formation of LiNi0.8Co0.1Mn0.1O2 cathode particles.

The microstructure of LiNi0.8Co0.1Mn0.1O2 cathode materials was controlled by the addition of lithium silicate, and the influence on the cycle performance and the rate-capability was investigated. Si was not included within the lattice, but localized at the grain boundaries of the primary particles and the pores inside the secondary particles. The addition of the lithium silicate greatly decreased the density of the pores between the primary particles and improved the density of the secondary particles. The capacity retention was successfully improved for lithium silicate-added LiNi0.8Co0.1Mn0.1O2. When lithium silicate-free LiNi0.8Co0.1Mn0.1O2 was charged to 4.3 V, many cracks were formed along the grain boundaries even in the first cycle, while crack formation was remarkably inhibited for lithium silicate-added LiNi0.8Co0.1Mn0.1O2. Moreover, lithium silicate-added LiNi0.8Co0.1Mn0.1O2 particles were almost free from visible microcracks even after 100 cycles at the discharged state. These results suggest that the lithium silicate reinforces the grain-adhesion at the grain boundaries, inhibiting crack formation and electrolyte decomposition inside the cracks.

[1]  M. Inaba,et al.  Communication—Enhancement of Structural Stability of LiNi0.5Co0.2Mn0.3O2 Cathode Particles against High-Voltage Cycling by Lithium Silicate Addition , 2019, Journal of The Electrochemical Society.

[2]  X. Sun,et al.  Radially Oriented Single‐Crystal Primary Nanosheets Enable Ultrahigh Rate and Cycling Properties of LiNi0.8Co0.1Mn0.1O2 Cathode Material for Lithium‐Ion Batteries , 2019, Advanced Energy Materials.

[3]  Mingyuan Ge,et al.  Simultaneously Dual Modification of Ni‐Rich Layered Oxide Cathode for High‐Energy Lithium‐Ion Batteries , 2019, Advanced Functional Materials.

[4]  Doron Aurbach,et al.  Structural and Electrochemical Aspects of LiNi0.8Co0.1Mn0.1O2 Cathode Materials Doped by Various Cations , 2019, ACS Energy Letters.

[5]  M. Inaba,et al.  Influence of lithium silicate coating on retarding crack formation in LiNi0.5Co0.2Mn0.3O2 cathode particles , 2018, Electrochimica Acta.

[6]  Jia-feng Zhang,et al.  In situ formed LiNi0.8Co0.15Al0.05O2@Li4SiO4 composite cathode material with high rate capability and long cycling stability for lithium-ion batteries , 2018, Nano Energy.

[7]  K. Tadanaga,et al.  Electrochemical performance of a garnet solid electrolyte based lithium metal battery with interface modification , 2018 .

[8]  Hun‐Gi Jung,et al.  Improved Cycling Stability of Li[Ni0.90Co0.05Mn0.05]O2 Through Microstructure Modification by Boron Doping for Li‐Ion Batteries , 2018, Advanced Energy Materials.

[9]  D. Aurbach,et al.  Pushing the limit of layered transition metal oxide cathodes for high-energy density rechargeable Li ion batteries , 2018 .

[10]  Wei Xiang,et al.  Improving cycling performance and rate capability of Ni-rich LiNi0.8Co0.1Mn0.1O2 cathode materials by Li4Ti5O12 coating , 2018 .

[11]  Chong Seung Yoon,et al.  Capacity Fading of Ni-Rich Li[NixCoyMn1–x–y]O2 (0.6 ≤ x ≤ 0.95) Cathodes for High-Energy-Density Lithium-Ion Batteries: Bulk or Surface Degradation? , 2018 .

[12]  Minjoon Park,et al.  Prospect and Reality of Ni‐Rich Cathode for Commercialization , 2018 .

[13]  Evan M. Erickson,et al.  From Surface ZrO2 Coating to Bulk Zr Doping by High Temperature Annealing of Nickel‐Rich Lithiated Oxides and Their Enhanced Electrochemical Performance in Lithium Ion Batteries , 2018 .

[14]  Lei Wang,et al.  The effect of gradient boracic polyanion-doping on structure, morphology, and cycling performance of Ni-rich LiNi 0.8 Co 0.15 Al 0.05 O 2 cathode material , 2018 .

[15]  Jinzhao Huang,et al.  Surface/Interfacial Structure and Chemistry of High-Energy Nickel-Rich Layered Oxide Cathodes: Advances and Perspectives. , 2017, Small.

[16]  Xiaolong Deng,et al.  Stabilizing the Electrode/Electrolyte Interface of LiNi0.8Co0.15Al0.05O2 through Tailoring Aluminum Distribution in Microspheres as Long-Life, High-Rate, and Safe Cathode for Lithium-Ion Batteries. , 2017, ACS applied materials & interfaces.

[17]  Enyue Zhao,et al.  Improved cycle stability of high-capacity Ni-rich LiNi 0.8 Mn 0.1 Co 0.1 O 2 at high cut-off voltage by Li 2 SiO 3 coating , 2017 .

[18]  Xijin Xu,et al.  Core–shell and concentration-gradient cathodes prepared via co-precipitation reaction for advanced lithium-ion batteries , 2017 .

[19]  Zhixing Wang,et al.  A short process for the efficient utilization of transition-metal chlorides in lithium-ion batteries: A case of Ni 0.8 Co 0.1 Mn 0.1 O 1.1 and LiNi 0.8 Co 0.1 Mn 0.1 O 2 , 2017 .

[20]  K. Du,et al.  Effects of Li2SiO3 coating on the performance of LiNi0.5Co0.2Mn0.3O2 cathode material for lithium ion batteries , 2017 .

[21]  James A. Gilbert,et al.  Transition Metal Dissolution, Ion Migration, Electrocatalytic Reduction and Capacity Loss in Lithium-Ion Full Cells , 2017 .

[22]  M. Winter,et al.  Degradation effects on the surface of commercial LiNi 0.5 Co 0.2 Mn 0.3 O 2 electrodes , 2016 .

[23]  Y. Meng,et al.  Ultrathin Al2O3 Coatings for Improved Cycling Performance and Thermal Stability of LiNi0.5Co0.2Mn0.3O2 Cathode Material , 2016 .

[24]  Tatsuya Nakamura,et al.  Lattice volume change during charge/discharge reaction and cycle performance of Li[NixCoyMnz]O2 , 2016 .

[25]  Guorong Hu,et al.  Electrochemical behaviours of SiO2-coated LiNi0.8Co0.1Mn0.1O2 cathode materials by a novel modification method , 2016 .

[26]  Taeeun Yim,et al.  Communication—Improvement of Structural Stability during High-Voltage Cycling in High-Nickel Cathode Materials with B2O3 Addition , 2016 .

[27]  Min-Joon Lee,et al.  Nickel-rich layered lithium transition-metal oxide for high-energy lithium-ion batteries. , 2015, Angewandte Chemie.

[28]  Xiang Zhou,et al.  A hydrolysis-hydrothermal route for the synthesis of ultrathin LiAlO2-inlaid LiNi0.5Co0.2Mn0.3O2 as a high-performance cathode material for lithium ion batteries , 2015 .

[29]  Masahiro Kinoshita,et al.  Capacity fade of LiAlyNi1−x−yCoxO2 cathode for lithium-ion batteries during accelerated calendar and cycle life tests (surface analysis of LiAlyNi1−x−yCoxO2 cathode after cycle tests in restricted depth of discharge ranges) , 2014 .

[30]  Haegyeom Kim,et al.  Understanding the Degradation Mechanisms of LiNi0.5Co0.2Mn0.3O2 Cathode Material in Lithium Ion Batteries , 2014 .

[31]  T. Abe,et al.  Lithium-ion transfer between LixCoO2 and polymer gel electrolytes , 2006 .

[32]  Yang‐Kook Sun,et al.  Synthetic optimization of Li[Ni 1/3Co 1/3Mn 1/3]O 2 via co-precipitation , 2004 .