Article
Nanoscience & Nanotechnology
Depeng Song, Zewen Yang, Qing Zhao, Xiaolin Sun, Yue Wu, Yuan Zhang, Jing Gao, Cheng Wang, Li Yang, Takeo Ohsaka, Futoshi Matsumoto, Jianfei Wu
Summary: This study presents a novel dilute electrolyte based on Co-free Li-rich cathodes, overcoming the limitations of cycling decay and voltage fading in Li-ion batteries. The Co-free Li-rich cathode demonstrates the best electrochemical performance among Li-rich cathodes, with outstanding cycling stability and suppressed voltage fading.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yabin Xu, Meixia Zhang, Li Yi, Kui Liang
Summary: The co-doping of Fe3+ and PO43- improves the electrochemical performance of Li1.20Mn0.56Ni0.16Co0.08O2, showing higher initial coulombic efficiency, excellent cycling stability, and mitigated voltage fade. The synergistic effect of Fe3+ and PO43- constructs a stable oxygen-packed framework, contributing to outstanding structural stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Atin Pramanik, Alexis G. Manche, Rebecca Clulow, Philip Lightfoot, A. Robert Armstrong
Summary: In this study, a lithium-rich perovskite oxide KLFC was demonstrated as a cathode material with promising cycling performance. The experimental and computational analysis revealed the redox activity of the oxalate anion and provided insights into the charge transfer during the potassium extraction processes.
DALTON TRANSACTIONS
(2022)
Article
Electrochemistry
Yanyan Wang, Wenhua Yu, Liuyang Zhao, Aimin Wu, Aikui Li, Xufeng Dong, Hao Huang
Summary: Li-rich Mn-based cathode materials (LRM) have attracted extensive attention for their high energy density, but the irreversible oxygen precipitation and structural transformation during cycling process hinder their practical applications. In this study, a Co-free Li-rich Mn-based cathode material Li1.2Ni0.185Mn0.585Fe0.03O2 was synthesized with the formation of an AlPO4-Li3PO4 double shell in situ on its surface. The synergistic modification of the AlPO4-Li3PO4 dual shell significantly improves the cycling stability and rate performance.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Jinyang Dong, Feng Wu, Jiayu Zhao, Qi Shi, Yun Lu, Ning Li, Duanyun Cao, Wenbo Li, Jianan Hao, Xulai Yang, Lai Chen, Yuefeng Su
Summary: Through the design of an amine-functionalized mesoporous molecular sieve additive with active oxygen/water scavenging capability, a multifunctional self-reconstructive CEI layer with modified mechanical/electrochemical stability was constructed, resolving the issues induced by collaboration failure mechanism between manganese-based oxide and electrolyte in lithium-ion batteries. This design provides new insights into achieving a high-stability and high-energy-density lithium-ion battery system.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
He Zhao, Wenting Li, Jinxing Li, Hanying Xu, Chao Zhang, Jie Li, Ce Han, Zelin Li, Mo Chu, Xinping Qiu
Summary: A novel eutectic melting salt treatment strategy was developed to improve the performance of cobalt-free iron-substituted Li-ion battery cathode materials by introducing a robust fluoride coating layer and functional doping. This approach effectively enhanced the electrochemical performance of the cathode, with negligible capacity loss, mitigated voltage fading, improved rate capability, and better thermal stability.
Article
Energy & Fuels
Mengtian Yu, Xuefei Wei, Xiuqin Min, Anbao Yuan, Jiaqiang Xu
Summary: By coating the cathode material with an appropriate amount of graphene quantum dots (GQDs), the electrical conductivity of the lithium-rich Li-ion battery can be effectively enhanced, thereby improving the specific capacity and rate performance, as well as the cycle stability.
Article
Nanoscience & Nanotechnology
Yukun Xi, Mingjun Wang, Le Xu, Hirbod Maleki Kheimeh Sari, Wenbin Li, Junhua Hu, Yanyan Cao, Liping Chen, Linzhe Wang, Xiaohua Pu, Jingjing Wang, Yikun Bai, Xingjiang Liu, Xifei Li
Summary: The new cobalt-free material NFM shows great potential in the battery industry, with high specific capacity and specific energy capacity, as well as reasonable rate capability and stable cycling performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Thomas Entwistle, Enrique Sanchez-Perez, Glen J. Murray, Nirmalesh Anthonisamy, Serena A. Cussen
Summary: The preparation of Ni-rich cathode materials is challenging due to the Ni2+ ion sensitivity to oxidation during synthesis. Control of synthesis conditions, such as temperature and pH, is necessary to achieve the desired layered structure in the Ni-rich materials.
Article
Chemistry, Multidisciplinary
Deyuan Liu, Jian Yang, Junming Hou, Jiaxuan Liao, Mengqiang Wu
Summary: Layered, Li-rich Mn-based oxides (LLMOs) are promising as high-energy batteries, but are limited by low initial coulombic efficiencies and poor cycling performance. In this study, a nano-SCMO shell was grown on LLMO under hydrothermal conditions, improving the reversible capacity, CE, and cyclic stability. The optimal coated sample, SCMO@LLMO-2.0, exhibited good initial discharge capacity, CE, and cycling performance at different rates.
Article
Chemistry, Physical
Hong Wang, Fang Liu, Ruohan Yu, Zhitong Xiao, Zhu Zhu, Liang Zhou, Jinsong Wu
Summary: Lithium-rich layered oxides (LLOs) are potential cathode materials for next generation energy storage devices. However, their structural degradation and capacity decay have hindered their applications. This study finds that cobalt can effectively mitigate structural degradation and improve cycling stability through surface reconstruction method.
Article
Energy & Fuels
L. Prettencia, E. Soundarrajan, A. M. Shanmugharaj, R. A. Kalaivani, S. Raghu
Summary: This article presents the synthesis of Li [Li0.1Ni0.3Mn0.7]O-2 cathode material for lithium-ion batteries using the co-precipitation method and rapid combustion with organic fuels. The physical characterizations confirm the structure and surface morphology of the material. The research findings show that the fine-tuned cathode material exhibits stable cycling at high voltage and high capacity with lower expense.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Jianming Sun, Chuanchao Sheng, Xin Cao, Pengfei Wang, Ping He, Huijun Yang, Zhi Chang, Xiyan Yue, Haoshen Zhou
Summary: By endowing the representative layered Li-rich cathode material with novel single-crystal morphology, this study effectively restrains oxygen release and layered/spinel phase transition, enhancing structural stability and demonstrating excellent cycling performance and high reversible capacity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xin Cao, Jianming Sun, Zhi Chang, Pengfei Wang, Xiyan Yue, Jun Okagaki, Ping He, Eunjoo Yoo, Haoshen Zhou
Summary: In this study, a Co/Ni-free biphasic O2/O3-type layered cathode material Li-0.9[Li0.3Mn0.7]O-2 is proposed and characterized. The biphasic cathode demonstrates high discharge capacity and long-term cycle stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoxia Yang, Suning Wang, Duzhao Han, Kai Wang, Akhil Tayal, Volodymyr Baran, Alexander Missyul, Qiang Fu, Jiangxuan Song, Helmut Ehrenberg, Sylvio Indris, Weibo Hua
Summary: A Co-free single-crystalline LMLO with small lattice changes and reduced micro-strain was synthesized, demonstrating potential for constructing stable high-energy lithium-ion batteries.
