Article
Biochemistry & Molecular Biology
Mihaela-Ramona Buga, Adnana Alina Spinu-Zaulet, Cosmin Giorgian Ungureanu, Raul-Augustin Mitran, Eugeniu Vasile, Mihaela Florea, Florentina Neatu
Summary: Porous silica-based materials show promise as an alternative to graphite anodes for Li-ion batteries, but face challenges such as low coulombic efficiency and irreversible capacity losses. The main strategy to address these challenges is the preparation of carbon-coated SiO2 composites, where the carbon thin layer effectively reduces interfacial impedance.
Article
Nanoscience & Nanotechnology
Hao Wu, Lihua Zheng, Ning Du, Bowen Sun, Jie Ma, Yingying Jiang, Jiadong Gong, Huan Chen, Lianbang Wang
Summary: The rational design of compact graphite/Si/SiO2 ternary composites enhances packing density and leads to higher areal capacity compared to pure graphite. Introducing Si/SiO2 clusters into void spaces between graphite particles provides an effective strategy for implementing graphite-Si composite anodes in next-generation Li-ion cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yaxiong Yang, Shugang Liu, Zhe Dong, Zhenguo Huang, Cheng Lu, Yongjun Wu, Mingxia Gao, Yongfeng Liu, Hongge Pan
Summary: This study demonstrates an effective hierarchical conformal coating strategy for high-performance microsized Si anodes, which enhances mechanical properties, promotes ionic diffusion, stabilizes electrode/electrolyte interfaces, and increases electronic conductivity. The optimized structure achieves high reversible capacity, cycling stability, and rate capability.
APPLIED MATERIALS TODAY
(2022)
Article
Nanoscience & Nanotechnology
Pei-En Weng, Alexander Gooyandeh, Muhammad Tariq, Tianyu Li, Avinash Godara, Jocelyn Valenzuela, Steven Mancini, Samuel Ming Tuk Yeung, Ruth Sosa, David R. Wagner, Rohan Dhall, Nicole Adelstein, Katy Kao, Dahyun Oh
Summary: This study reports the first biodirected synthesis of carbonaceous layers on anodes to prevent direct contact of water molecules with anode particles. Utilizing high-aspect ratio microbes as precursors, the conductivity is enhanced and the electrolysis of WIS electrolytes is reduced.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shuai Xu, Xiaodong Hou, Dongniu Wang, Lucia Zuin, Jigang Zhou, Yong Hou, Michael Mann
Summary: In this study, the structure and composition evolution of SiO and graphene-coated SiO under different heat treatment conditions were investigated, revealing the structural transition of SiO during heat treatment and the improved electrochemical performance by graphene coating.
ADVANCED ENERGY MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Chao Jin, Zigang Wang, Chang Luo, Chunling Qin, Yongyan Li, Zhifeng Wang
Summary: In this study, NiFe2O4/NiO composites with a dual-network structure were fabricated using a simple dealloying method. The material, composed of nanosheet networks and ligament-pore networks, provides sufficient space for volume expansion and promotes the rapid transfer of electrons and Li ions. As a result, the material exhibits excellent electrochemical performance, retaining 756.9 mAh g(-1) after 100 cycles at a current density of 200 mA g(-1) and retaining 641.1 mAh g(-1) after 1000 cycles at a current density of 500 mA g(-1).
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Xi Chen, Laura C. Loaiza, Laure Monconduit, Vincent Seznec
Summary: The 2D Si-Ge alloy materials, known as siliganes, have been developed for use as anodes in Li-ion batteries, offering reasonable cost and promising electrochemical performance. Among them, the siligane_Si0.9Ge0.1 showed the best performance, with a reversible capacity of 1325 mA h g-1, high capacity retention, and coulombic efficiency at a current density of 0.05 A g-1 after 10 cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jiming Peng, Yu Li, Zhiqiang Chen, Gemeng Liang, Sijiang Hu, Tengfei Zhou, Fenghua Zheng, Qichang Pan, Hongqiang Wang, Qingyu Li, Jianwen Liu, Zaiping Guo
Summary: A surface-coating strategy using NiFe2O4 was developed to enhance the performance of Li-rich layered oxides in lithium-ion batteries, resulting in improved cycle stability and rate capability. This strategy effectively traps surface lattice oxygen and restrains cation migration, decoupling the surface oxygen redox from cation movement.
Article
Materials Science, Ceramics
Tongyao Zhao, Zhenjing Jiang, Yanfei Zhang, Jinjun Ren, Yuanzheng Yue
Summary: Understanding the role of network formers is crucial for developing novel glass anode materials for Li-ion batteries. This study investigates the effect of substituting P2O5 for TeO2 in V2O5-TeO2 glass composition on the microstructure and performances of LIB anodes. Advanced spectroscopy techniques reveal the irreversible disassociation and formation of nanoclusters during Li+ ion insertion/extraction. The substitution enhances the capacity of the glass anodes by promoting Li2Te formation and V5+ reduction to V4+.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Energy & Fuels
Young-Han Lee, In-Su Hwang, Jeong-Hee Choi, Cheol-Min Park
Summary: The electrochemical Li/Na/K-ion reaction pathways in Ga for high-performance Ga anodes in alkali-ion batteries are thoroughly elucidated using ex situ analytical tools. Ga exhibits a high Li-ion storage reaction, forming Li2Ga, but poor Na- and K-ion storage reactions, forming NaGa4 and K3Ga13, respectively. An amorphous Ga composite (Ga/C) is fabricated, showing high reversible capacity, long-term Li-ion storage stability, and high rate capability. Three-step confinement of amorphous Ga in the composite during cycling is demonstrated as an enhancement mechanism for high-performance Ga/C anodes for LIBs.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Physical
Lijing Xie, Cheng Tang, Zhihong Bi, Mingxin Song, Yafeng Fan, Chong Yan, Xiaoming Li, Fangyuan Su, Qiang Zhang, Chengmeng Chen
Summary: Hard carbons, with their enriched microcrystalline structure, have attracted attention as a promising anode material for high-energy LIBs, but face challenges such as low initial efficiency and capacity issues. Current research efforts are focused on addressing these challenges to enable practical application in next-generation batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Dong-Hun Lee, Do-Hyeon Kim, Heechul Jung, Cheol-Min Park
Summary: Germanium is a highly researched anode material for Li-ion batteries due to its high Li storage capacity and electrical conductivity. The Li reaction pathways in germanium have been demonstrated through the analysis of nanocrystalline germanium. The electrochemical performance of a germanium-based nanocomposite, Ge/Al2O3/C, has been enhanced for better Li storage characteristics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Sanghamitra Moharana, Geoff West, Marc Walker, Xinjie S. Yan, Melanie Loveridge
Summary: The addition of KPF6 in the electrolyte can promote the formation of a robust SEI layer, effectively inhibiting the growth of Li dendrites. The KPF6 additive can form a thin and durable SEI layer rich in LiF, which blocks the electron leakage pathways. Additionally, KPF6 additive can reside at defect sites, hindering the incoming of Li+ and restricting the growth of Li dendrites. Optimizing the electrode/electrolyte interphase by controlling the concentration of additives has implications for fast charging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Guolang Zhou, Wenhao Ding, Yu Guan, Tianshi Wang, Cheng Liu, Lili Zhang, Jingzhou Yin, Yongsheng Fu
Summary: This review summarizes the research progress of NiO-based nanomaterials in rechargeable lithium-ion batteries (LIBs). The electrochemical characteristics highly depend on the synthesis method, morphology, etc., and NiO-based composites often show higher capacity and cycle stability compared to pure NiO. Future research should address the challenges of NiO-based anodes.
Article
Chemistry, Physical
Jia Liu, Wei Sun, Yuzhu Ran, Shuyu Zhou, Linfeng Zhang, Aimin Wu, Hao Huang, Man Yao
Summary: The study verifies the lithiation process of Sn4P3 as an anode material for Li-ion batteries through experimental and computational analysis, showing its excellent cycling stability and progressive lithiation mechanism.
APPLIED SURFACE SCIENCE
(2021)
