Article
Chemistry, Physical
Hugo S. Francon, Yunus C. Gorur, Celine Montanari, Per A. Larsson, Lars Wagberg
Summary: Cellulose nanofibers (CNFs) are bio-sourced nanomaterials that can be used as binders in the preparation of high-performance nanocomposites. This study found that modified cellulosic fibers performed better than conventional binders in terms of electrochemical and mechanical properties in the preparation of graphite anodes for Li-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Madhushri Bhar, Sourav Ghosh, Satheesh Krishnamurthy, Kaliprasad Yalamanchili, Surendra K. Martha
Summary: This study developed an efficient method for graphite recovery from spent LIBs, which enhanced the degree of graphitization and stable discharge capacity. The practical feasibility was confirmed through a full-cell study.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Editorial Material
Materials Science, Multidisciplinary
Sheng Shui Zhang
Summary: Fast charging of Li-ion cells faces challenges including accelerated capacity fade and inferior charging capability. Apart from the well-known issues of Li plating and voltage polarization, there are hidden factors such as failure of the solid electrolyte interphase, structural degradation of cathode materials, and high activation energies of Li+ ions in the electrolyte. Understanding these factors can help propose solutions to the fast-charging problems.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Article
Chemistry, Physical
Akihiro Yamano, Tatsuya Kubo, Fumiya Chujo, Naoto Yamashita, Takashi Mukai, Masanori Morishita, Masahiro Yanagida, Satoshi Furusawa, Naohiko Kikuchi, Tetsuo Sakai
Summary: We developed a non-disassembly and reassembly Li pre-doping technique using perforated electrodes to create Li-ion batteries with a rubber-derived sulfur composite cathode. By externally shorting the anodes and Li metal electrodes using the perforated electrodes, the Li pre-doping of the anodes was achieved, with the degree of pre-doping determined by open circuit voltage measurement. This technique successfully enabled Li pre-doping of graphite anodes in a cell composed of rubber-derived sulfur composite cathodes and graphite anodes, resulting in stable charge-discharge performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Chaeeun Song, Hyeongyu Moon, Kyungeun Baek, Chorong Shin, Kwansoo Lee, Seok Ju Kang, Nam-Soon Choi
Summary: Nickel-rich layered oxides have high potential as cathode materials for high-energy Li-ion batteries, but practical applications are hindered by issues such as metal dissolution and reactive compound formation. This study demonstrates that the supplementation of electrolyte with tert-butyldimethylsilyl glycidyl ether (tBS-GE) can inhibit the interfacial degradation of LiNi0.9CoxMnyAlzO2 (NCMA) cathode and graphite (Gr) anode caused by HF. The tBS-GE scavenges HF and stabilizes the electrode surfaces, while its reaction with CO2 suppresses battery swelling. Adding 0.1 wt% tBS-GE to the electrolyte leads to improved capacity retention and discharge capacity of the NCMA/Gr full cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Fei Zhang, Miaomiao Wu, Xingchao Wang, Qian Xiang, Yan Wu, Juan Ding, Ying Sun
Summary: This study reports a novel organic electrode material, hexalithium salt of mellitic acid (Li6C12O12), which shows promising characteristics including low cost, high capacity, non-toxicity, and environmental friendliness for lithium-ion batteries (LIB) and dual-ion batteries (DIB). The electrochemical and spectroscopic analysis confirmed a reversible coordination reaction mechanism based on carboxylic carbonyl and Li+ ions. Li6C12O12 achieved large reversible capacities of 730 mA h g(-1) at 0.21 A/g and 372 mA h g(-1) even at 2 A/g. Moreover, Li6C12O12 electrode exhibited excellent performance in full LIB and DIB, showing high capacity and cycling stability. This work provides a new perspective on designing and tailoring organic electrode materials for high-performance lithium-ion batteries and dual-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Shu-Ang He, Qian Liu, Wei Luo, Zhe Cui, Rujia Zou
Summary: Researchers have developed a novel method to obtain a micrometer-sized layer structure of S-doped Nb2O5 on an S-doped graphene surface through electrochemically induced aggregation. The unique merits of the composite with a micrometer-sized layer structure increased the reaction degree, structural stability, and electrochemical kinetics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Hung-Jui Hsu, Chia-Chen Li
Summary: The construction of a microsphere composed of nano-TiO2 and carbon with large pores as an anode active material for lithium-ion batteries can improve electron and ion transport efficiency, resulting in better capacity stability and higher cycle life.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Junyang Hu, Huwei Wang, Shuwei Wang, Yu Lei, Lei Qin, Xiaojing Li, Dengyun Zhai, Baohua Li, Feiyu Kang
Summary: Research shows that the deposition mechanism of sodium and potassium in metal batteries differs from that of lithium, resulting in the formation of micrometer-scale granules, which may cause short circuits in the battery.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ziyi Shi, Shule Wang, Yanghao Jin, Lingfeng Zhao, Shiwei Chen, Hanmin Yang, Yuxiao Cui, Rikard Svanberg, Chuchu Tang, Jianchun Jiang, Weihong Yang, Par G. Jönsson, Tong Han
Summary: This study explores the production and applications of green graphite from biomass waste, establishing a green graphite industry. Results showed that biomass pyrolysis and catalytic graphitization of biochar produced green graphite with high reversible capacity and retention. Green graphite electrodes with low resistivity were fabricated using organic fraction bio-oil as a binder. The overall process of graphite synthesis from biomass showed low energy consumption and carbon footprint, with net-negative-CO2 emissions achieved.
Article
Green & Sustainable Science & Technology
Fathima Ali Kayakool, Binitha Gangaja, Shantikumar Nair, Dhamodaran Santhanagopalan
Summary: The recycling and regeneration of graphite from spent Li-ion batteries can be utilized for the fabrication of Li-ion based all-carbon dual-ion batteries, achieving promising electrochemical performance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Review
Electrochemistry
Yao Liu, Wei Li, Yongyao Xia
Summary: While carbon, oxide, and silicon-based materials have limitations in current LIB applications, polyanionic compounds have gained attention for their ability to stabilize structures, adjust redox couples, and provide migration channels for guest ions, leading to electrode materials with long-term cycling, high energy density, and outstanding rate capability.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Review
Physics, Applied
Subrata Ghosh, S. R. Polaki, Andrea Macrelli, Carlo S. Casari, Suelen Barg, Sang Mun Jeong, Kostya (Ken) Ostrikov
Summary: As renewable energy becomes crucial, electrochemical energy storage devices are necessary for efficient energy storage and reliable supply. The electrode material plays a key role in determining the storage capacity and power delivery. Decorating carbon-based materials with nanoparticles is a promising strategy to enhance their properties and improve their performance in next-generation energy storage devices.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Ersu Lokcu, Mustafa Anik
Summary: This study focuses on improving the energy density of Li-air batteries by synthesizing Li22Si5 and Li13Si4 alloys as alternative anode materials, which demonstrate higher specific energy density under specific conditions. XRD analyses reveal that the initial alloy anode stoichiometry affects the formation of charge products. The research suggests that lithium silicide alloy anodes hold great promise as substitutes for metallic Li anodes in developing Li-iron oxygen batteries with higher coulombic efficiency and lower polarization values.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Hussen Maseed, Shaikshavali Petnikota, Vadali V. S. S. Srikanth, Naresh Kumar Rotte, Madhavi Srinivasan, Francesco Bonaccorso, Vittorio Pellegrini, Mogalahalli Reddy
Summary: Highly crystalline few-layered graphene (hcFLG) synthesized using microwave exfoliation of in-house prepared graphene oxide exhibits unique lithiation electrochemistry in Li-ion coin cell. The hcFLG shows enhanced surface lithiation above 0.3 V and diffusion-controlled lithiation below 0.3 V, delivering reversible specific capacities at different current rates. It also demonstrates excellent rate capability and safe in-situ exfoliation, making it a promising candidate for emerging battery technologies like 'All Graphene Battery'.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Feng-Kuan Chen, Zue-Chin Chang, Bing-Hau Kuo, Erh-Chiang Chen, Yen-Lin Huang, Fuh-Sheng Shieu
Summary: The study investigated the effect of Al2O3 doping concentration on the structural and optoelectronic characteristics of sputtered MgZnO films. Results showed that an Al2O3 doping concentration of 2 wt.% led to optimal electrical properties and transparency in the films.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Zue-Chin Chang, Erh-Chiang Chen, Yen-Lin Huang, Fuh-Sheng Shieu
Summary: The effects of Al target power on the properties of TiVCrAl films were investigated, and it was found that the addition of Al can improve the mechanical and electrical properties of the films.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Erh-Chiang Chen, Zue-Chin Chang, Fuh-Sheng Shieu
Summary: Multi-element (CrHfNbTaTiVZr)N coatings were prepared and the effects of N-2-to-(N-2 + Ar) ratios on the composition, structure, mechanical properties, and electrical performance of the coatings were investigated. The coating thickness decreased and the structure transformed from amorphous phase to face-centered cubic (FCC) phase with preferred orientations. The microstructure of the nitride coatings also changed, with decreased grain size. The coating deposited at an N-2 ratio of 60% exhibited the highest hardness and lowest friction coefficient.
Article
Multidisciplinary Sciences
Chih-Chiang Wang, Yu-Sung Chang, Pao-Tai Lin, Fuh-Sheng Shieu, Han-Chang Shih
Summary: Au-decorated Bi2Se3 nanoplatelet heterostructures were fabricated by thermal CVD and magnetron sputtering, characterized by various techniques. The study revealed that Au decoration significantly increased the optical band gap of Bi2Se3 and enhanced the optical absorptance.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Erh-Chiang Chen, Yen-Lin Huang, Zue-Chin Chang, Fuh-Sheng Shieu
Summary: This study investigates the influence of process parameters on the properties of ZrAlNiCu alloy and nitride film. The films were obtained by magnetron sputtering of a single Zr51Al11Ni4Cu34 target. The key parameters affecting the process were working pressure, substrate temperature, and nitrogen partial pressure. The results show that nitride films deposited at moderate nitrogen partial pressure have FCC-ZrN nanophase, while almost all films are amorphous. A low working pressure and high substrate temperature lead to refined boundary interfaces, thus increasing hardness and electrical conductivity. Nitride films have higher hardness and lower electrical conductivity due to their strong ionic metal-N bonding. Therefore, the formation of FCC-ZrN nanocrystals contributes to the further improvement of hardness.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Zue-Chin Chang, Po-Sheng Kuo, Erh-Chiang Chen, Yen Lin Huang, Fuh-Sheng Shieu
Summary: Si-doped (TiZrHf)N coatings were deposited on Si substrates by cosputtering from TiZrHf and Si targets in N2/Ar atmosphere. The Si content increased with increasing Si target power, leading to changes in the microstructure and mechanical properties of the coatings. The electro-optical characteristics of the coatings deteriorated with increasing Si content, resulting in higher electrical resistivity and lower light reflectivity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Du-Cheng Tsai, Zue-Chin Chang, Erh-Chiang Chen, Yen-Lin Huang, Yun-Chen Jiang, Fuh-Sheng Shieu
Summary: This study focuses on how plasma treatment can modify the surface of an AA 5052-H32 aluminum alloy, and investigates the effects of discharge power, exposure time, and working gas as process parameters on the adhesion between the aluminum alloy and GFRTP polycarbonate composite. The researchers analyzed the surface composition and morphology of the alloy using X-ray photoelectron spectroscopy and scanning electron microscopy, and evaluated surface roughness and wettability. The results showed that nitrogen plasma treatment significantly improved bonding strength due to both rough surface mechanical bonding and chemical bonding between the alloy and GFRTP, but the improvement in surface wettability diminished over time due to re-adsorption of hydrocarbon contamination.
Article
Materials Science, Multidisciplinary
Du-Cheng Tsai, Erh-Chiang Chen, Yen-Lin Huang, Fuh-Sheng Shieu, Zue-Chin Chang
Summary: The aim of this study is to explore the structural and optoelectronic properties of Cu-Cr-O thin films. The films were processed by magnetron sputtering using a single CuCr alloy target and then post-annealed at various temperatures. The result showed that the annealing temperature greatly influenced the phase formation and optoelectronic performance of the thin films.
MATERIALS SCIENCE-POLAND
(2023)
Article
Engineering, Electrical & Electronic
Junchao Zhou, Mingzhao Liu, Chenyu Zhou, Bing Hau Kuo, Fuh-Sheng Shieu, Pao Tai Lin
Summary: Nonlinear frequency conversion in the mid-infrared region was achieved using barium titanate (BTO) on a silicon-on-insulator (SOI) substrate. The BTO thin film was epitaxially grown using pulsed-laser deposition (PLD) and characterized through polarimetric mid-IR second harmonic generation (SHG) measurements. Strong SHG intensity was observed over a wide spectrum, providing a compact platform for efficient on-chip light generation and quantum photonic technologies.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Du-Cheng Tsai, Feng-Kuan Chen, Zue-Chin Chang, Bing-Hau Kuo, Erh-Chiang Chen, Yen-Lin Huang, Fuh-Sheng Shieu
Summary: ZnMgO:Al coatings were prepared on glass substrates by RF magnetron sputtering, and the effects of substrate temperature on the structural, electrical, and optical properties were studied. Increasing substrate temperature led to larger grain sizes, higher Hall mobilities, and enhanced carrier concentration. The optimal performance was achieved at 400 degrees C, with the lowest resistivity, highest transmission, and increased optical bandgap.
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2021)
