Article
Electrochemistry
Guo-qing Li, Yue Zhao, Yan Zhou, Xiao-hui Ning
Summary: This work investigates the use of solid lithium titanate as the cathode material in a liquid metal battery to enhance cell voltage and reduce operating temperature. By employing a specific electrolyte and liquid lithium as the anode, a liquid-solid metal battery with excellent performance is achieved.
ELECTROCHIMICA ACTA
(2022)
Review
Electrochemistry
Sha Tan, Zulipiya Shadike, Xinyin Cai, Ruoqian Lin, Atsu Kludze, Oleg Borodin, Brett L. Lucht, Chunsheng Wang, Enyuan Hu, Kang Xu, Xiao-Qing Yang
Summary: The lithium-ion battery (LIB) is a highly sought-after power source due to its high energy density and long cycle life. However, its capacity drops significantly at low temperatures, restricting its applications in cold climates and aerospace equipment. This review summarizes the factors contributing to the deterioration of Li+ transport and capacity utilization at low temperatures and discusses strategies to improve Li+ transport kinetics. The formation mechanism and functionality of the solid electrolyte interphase for low-temperature electrolytes are also analyzed. Future perspectives in this field are provided.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Yi Ji, Chad T. Jafvert, Nadezhda N. Zyaykina, Fu Zhao
Summary: The increasing demand for electric vehicles and the rapid consumption of rechargeable lithium-ion batteries call for the recycling of spent cathode active materials (CAMs) to reduce hazardous wastes and provide raw materials for battery production. Traditional methods such as direct calcination of polyvinylidene fluoride (PVDF) binder have drawbacks of high energy consumption and toxic gas release. This study explores an environmentally friendly and effective alternative using different lithium salts, and achieves high peel-off efficiency with LiOAc and LiNO3. The mechanism of PVDF decomposition is proposed.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Nanoscience & Nanotechnology
Yijun Zhong, Chencheng Cao, Moses Oludayo Tade, Zongping Shao
Summary: In this study, a composite anode with metallic lithium, ionically conductive Li3N, and electronically conductive components was developed to decrease the over-potentials in solid-state lithium batteries. The dual conductive phases showed improved electrochemical stability and cycling performance, making them a promising candidate for future Li-containing composite anodes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Toshihiko Mandai, Hiroko Naya, Hyuma Masu
Summary: The electrolyte material for high-energy-density rechargeable batteries should have sufficient stability against metallic negative electrodes. Weakly coordinating anion (WCA)-based electrolytes have shown excellent performance due to their strong interaction with metal cations. In this study, the valency of paired cation species was found to affect the transport properties and electrochemical characteristics of the electrolytes, with divalent electrolytes exhibiting higher conductivity than monovalent electrolytes. The combination of magnesium cations and [B(HFIP)4]- anion showed outstanding performance in ethereal solutions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Energy & Fuels
Yihang Jiang, Jian Huang, Peicheng Xu, Peiyong Wang
Summary: A novel method and experimental apparatuses were developed to measure the axial and radial thermal conductivities of the 18,650 LiNiCoAlO2 (NCA) lithium-ion battery. The axial conductivity of the battery generally increases with the increase in open circuit voltage (OCV) and temperature. There is no obvious relationship among the radial conductivity, temperature, and OCV, whether the core and the shell are treated separately or not.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Misaki Katayama, Takuto Nishikawa, Hirona Yamagishi, Shogo Yasuda, Tomoya Sano, Takashi Kameyama, Yuki Orikasa, Yasuhiro Inada
Summary: The study revealed that the carbon content and surface modification of current collector influence the reaction distribution of LiFePO4 cathodes in lithium-ion batteries, while higher discharge rates and temperatures promote inhomogeneous reactions. Additionally, it was found that IR drop in the reaction channels sharpens reaction spots at higher discharge rates.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yushi Fujita, Takashi Hakari, Minako Deguchi, Yusuke Kawasaki, Hirofumi Tsukasaki, Shigeo Mori, Masahiro Tatsumisago, Atsushi Sakuda, Akitoshi Hayashi
Summary: Lithium sulfur batteries are promising due to their high energy densities. This study investigates the charge-discharge mechanism of a Li2S-LiI solid solution in all-solid-state batteries, achieving high reversible capacity. The formation of an ionic conductive structure rich in LiI enables nearly fully solid phase S/Li2S reactions in all-solid-state batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Mengyuan Song, Changhao Tian, Chunguang Chen, Tao Huang, Aishui Yu
Summary: Lithium-oxygen batteries have high energy density, but conventional liquid electrolytes struggle to form a stable solid electrolyte interface (SEI) on the cathode surface for long-term stable cycling. LiBOB is added to the LiTFSI-based electrolyte to solve this issue. The introduction of LiBOB induces the dissociation equilibrium of the lithium salt positively, resulting in an electrolyte with good ionic conductivity. Different amounts of LiBOB exhibit different characteristics in electrochemical performance, with trace amounts improving discharge capacity. The synergistic effect of the LiTFSI-LiBOB dual-salt electrolyte forms a protective SEI, leading to comparable cycling performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Thermodynamics
Gavin White, Alastair Hales, Yatish Patel, Gregory Offer
Summary: Thermal conductivity is a fundamental parameter in battery pack models, but current measurement methods have large errors. This paper presents three novel methods for measuring thermal conductivity and thermal diffusivity with an accuracy of 5.6%. These methods, designed for materials like lithium-ion batteries, maintain a symmetrical thermal boundary condition around the middle of the cell, leading to improved measurement accuracy. These methods represent the future for thermal characterization of lithium-ion batteries.
APPLIED THERMAL ENGINEERING
(2022)
Article
Engineering, Environmental
Guohua Ye, Guoqing Zhang, Liqin Jiang, Xiaoqing Yang
Summary: This study designs a novel composite PCM with dual phase change temperature regions (PCTRs) to maintain suitable operating temperature of battery modules under different ambient temperatures and prevent thermal hazards.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Ji-Cong Huang, Yui Whei Chen-Yang, Jiunn-Jer Hwang
Summary: In this study, TEOS and MTES were utilized as precursors for the synthesis of silica ionogel electrolytes, combined with the ionic liquid [BMIM-ClO4]. The addition of MTES improved the mechanical strength of the electrolyte and simplified the preparation process. The prepared silica ionogel electrolyte exhibited high ionic conductivity and electrochemical stability, making it a promising candidate for energy storage applications.
Article
Chemistry, Physical
Ryan S. Longchamps, Xiao-Guang Yang, Shanhai Ge, Teng Liu, Chao-Yang Wang
Summary: By utilizing a self-heating structure, the huge potential of current battery materials can be unleashed to provide high energy and power performance in extreme low-temperature conditions. The heating process efficiently increases the battery temperature with minimal energy consumption. The chemistry-agnostic nature of self-heating can enhance the rate capability of lithium-ion and lithium metal batteries, expanding the performance envelopes of battery materials for electrified transportation.
JOURNAL OF POWER SOURCES
(2021)
Review
Green & Sustainable Science & Technology
Jake Entwistle, Ruihuan Ge, Kunal Pardikar, Rachel Smith, Denis Cumming
Summary: This study aims to enhance the energy density and charge/discharge speeds of Li-ion batteries by exploring the relationship between electronic conductivity and ion diffusion. Through literature review, the study investigates the existing techniques and methods, as well as the optimal arrangement of CBD and the formation of electrode structures, providing guidance and suggestions for future research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Electrochemistry
Ningling Yu, Jun Ke, Lei Li, Yafan Bi
Summary: Two types of water-soluble carboxymethyl chitosan with different degrees of substitution were synthesized and used to assemble high-performance cathodes in lithium-nickel-manganese oxide (LNMO) batteries. The water-soluble O-CCTS provided abundant hydrogen bonding and chelation with metal ions, resulting in better wrapping and uniform coating of the cathode material on the electrode sheets. The O-CCTS-LNMO cathode exhibited higher discharge capacity and better impedance and cyclic performance compared to O,N-CCTS-LNMO and PVDF-LNMO.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Characterization & Testing
M. R. Ahmedbacha, A. Benouar, A. Khorsi, N. Akermi, K. Kaddouri
Summary: This paper presents a study on scanning functioning machine rotors with high X-ray energy using optimized tomographic reconstruction by cone beam acquisition geometry. A simple design of a fixed-angle projection scanner is proposed to achieve synchronized rotation of the rotor during scanning, and the filtered back-projection algorithm is used to compute a tomographic image of the rotor.
MATERIALS EVALUATION
(2022)
Article
Chemistry, Multidisciplinary
Benouar Ali, Ahmed Bacha Reda Mohammed
INDONESIAN JOURNAL OF CHEMISTRY
(2020)
