Article
Green & Sustainable Science & Technology
S. Zhang, X. Xu, J. Tu, F. Chen, J. Xie, T. Zhu, X. Zhao
Summary: In this study, a novel three-dimensional cross-linked binder was constructed by forming hydrogen bonds between carboxymethyl cellulose (CMC) and ethylenediaminetetraacetic acid disodium (EDTA-2Na), with EDTA-2Na further coordinated to calcium ions (Ca2+). The cross-linked CMC/EDTA-Ca2+ binder exhibited improved mechanical properties and higher adhesion strength compared to the bare CMC binder, enabling reversible volume change and enhancing the cycling performance of Si/C anode. Moreover, the low-cost and abundant photovoltaic waste silicon was recycled as a Si source for fabricating the Si/C anode.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Engineering, Environmental
Wonseok Jang, Sangwook Kim, Yumi Kang, Taeeun Yim, Tae-Hyun Kim
Summary: A self-healing cross-linked poly(acrylic acid) (PAA) binder functionalized with diarylbibenzofuranone (DABBF) was developed for silicon anodes, providing stable structure, improved adhesion, and mechanical properties. The binder's self-healing ability enabled stable capacity retention, and the DABBF-functionalized PAA exhibited higher adhesion efficiency and mechanical properties. The novel binder significantly improved the stability of silicon anodes and achieved high capacity retention after 500 cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Zhiming Zheng, Haowen Gao, Chengzhi Ke, Miao Li, Yong Cheng, Dong-Liang Peng, Qiaobao Zhang, Ming-Sheng Wang
Summary: A novel binder-grafting strategy was proposed to construct Si-CMC/PA electrodes with high reversible capacity and improved long-term cycling stability; in situ transmission electron microscopy revealed the binding effect of CMC/PA on the silicon anode, effectively preventing cracking; combined microscopy and X-ray photoelectron spectroscopy analysis unveiled the superior Li-ion storage performance origin of Si-CMC/PA electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Agman Gupta, Rajashekar Badam, Noriyoshi Matsumi
Summary: In this study, a highly robust polymer composite binder was applied to silicon anodes to improve their performance in lithium-ion batteries. The binder can restrict the volume expansion of silicon particles, maintain electrical conductivity within the electrode, and form a thin solid-electrolyte interphase. Experimental results demonstrated that the binder stabilized the performance of silicon anodes, resulting in high reversible capacity and Coulombic efficiency.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yongjing Hu, Dan Shao, Yutong Chen, Jianping Peng, Shuqi Dai, Mingjun Huang, Zi-Hao Guo, Xiangyi Luo, Kan Yue
Summary: A physically cross-linked hydrogen-bonded polymeric complex based on PAA and PEO is proposed as an efficient binder for high-performance Si anodes, balancing elasticity and adhesion properties. Optimized composition of the binder could provide insights for the design of low-cost and efficient binders for electrode materials with significant volume changes.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Lei Ma, Yu Zhang, Xiaoyu Wang, Ruixian Tang, Xiao Zheng, Yanru Dong, Guolong Kong, Zhongyu Hou, Liangming Wei
Summary: The multifunctional poly(acrylic acid-co-N-methylol acrylamide-co-butyl acrylate) copolymer grafted-carboxymethyl cellulose binder significantly improves the cycling performance and rate performance of Si-based lithium ion batteries.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hui Gyeong Park, Mincheol Jung, Shinyoung Lee, Woo-Jin Song, Jung-Soo Lee
Summary: The study demonstrates that the C-PAA/TAc binder can effectively improve the cycle stability and Coulombic efficiency of silicon anodes. It has cross-linking and antioxidant capabilities, which can suppress side reactions and form a suitable solid-electrolyte interface layer.
Article
Chemistry, Physical
Wenqiang Zhu, Jun Zhou, Fan Zhang, Tingting Li, Yahui Yang, Jiang Yin, Zhongliang Tian, Wenzhang Li, Yanqing Lai, Lishan Yang
Summary: This study presents the design of a moderately cross-linked polymer binder for silicon anodes in lithium-ion batteries. The binder addresses the challenges associated with silicon materials, such as volume expansion and unstable solid electrolyte interphase (SEI) layer. The resulting silicon anodes demonstrate superior cycling performance and good mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Zhen Hua Xie, Min Zhi Rong, Ming Qiu Zhang
Summary: In this study, a water-soluble polymeric binder PAA-B-HPR is developed by crosslinking commercial poly(acrylic acid) and hydroxypropyl polyrotaxane, which is applied to the fabrication of the Si anode for Li-ion batteries. The battery exhibits outstanding specific capacity and cycle stability, with a discharge specific capacity of 1056 mA h/g at 55 degrees C after 500 cycles and a capacity fading rate of only 0.10% per cycle. This work paves the way for the practical application of Si anodes in Li-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Haoxiang Zhong, Jiarong He, Lingzhi Zhang
Summary: By grafting poly (acrylic acid) onto Arabic gum and combining it with branched polyols, a crosslinkable aqueous binder is developed for Si anodes of lithium-ion batteries, exhibiting better adhesion strength and cycling stability. The Si electrode with this binder shows higher specific capacity and better capacity retention at high rates compared to traditional binders.
Article
Chemistry, Physical
Gwanghyun Lee, Yunkyu Choi, Hyungjoon Ji, Ju Yeon Kim, Jeong Pil Kim, Junhyeok Kang, Ohchan Kwon, Dae Woo Kim, Jong Hyeok Park
Summary: A highly stable silicon microparticle anode with high energy density is achieved using a hybrid binder made of functionalized carbon nanotubes and poly(acrylic acid). The anode exhibits excellent stability and capacity retention during cycling tests.
Article
Nanoscience & Nanotechnology
Nam-Kyu Lim, Eun-Kyung Kim, Jin-Ju Park, Su-Jong Bae, Sanghyeon Woo, Jae-Hak Choi, Woo-Jin Song
Summary: The use of polysaccharide-based 3D cross-linked network binders can effectively prevent the volume expansion of Si anodes and provide enhanced adhesion strength, resulting in the fabrication of electrodes with outstanding performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Li Zhang, Xingxing Jiao, Zhenhe Feng, Bing Li, Yangyang Feng, Jiangxuan Song
Summary: A water-soluble polymer binder with a three dimensional network was utilized to stabilize silicon anodes, leading to promising electrochemical performance for SiNP and SiC electrodes. This innovative gel polymer binder could potentially extend the cycling life of high capacity battery electrodes.
JOURNAL OF POWER SOURCES
(2021)
Article
Nanoscience & Nanotechnology
Shiyun Zhang, Kai Liu, Jian Xie, Xiongwen Xu, Jian Tu, Weixiang Chen, Fang Chen, Tiejun Zhu, Xinbing Zhao
Summary: Due to the urgent demand for high-energy-density lithium-ion batteries (LIBs), silicon (Si) with an ultrahigh capacity has gained wide attention. However, the practical application of Si is hindered by the large volume changes during cycling. In this study, a three-dimensional network binder composed of polyacrylic acid (PAA) and lysine (Lys) was constructed. The PAA/Lys binder exhibited strong adhesion to Si particles through hydrogen bonds and the cross-linked structure prevented irreversible slipping of PAA chains. The Si electrode using the PAA/Lys binder showed good cycling stability and high capacity retention, demonstrating the potential of using sustainable Si sources and environmentally friendly binders.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Joon-Yong Sohn, Gwangjin Kim, In-Tae Hwang, Junhwa Shin, Chan-Hee Jung, Young-Moo Lee
Summary: In this study, the enhanced performance of the poly(acrylic acid) binder-based silicon/graphite composite anode was achieved through a quick and scalable process of electron beam irradiation-induced crosslinking. The crosslinking reaction was induced by the presence of a water-soluble crosslinker. Analysis of the irradiated binder film showed that the crosslinking resulted in reduced swelling and improved tensile strength. The crosslinked anode exhibited higher hardness and better cycle stability compared to the non-irradiated one.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Energy & Fuels
Sang Hoo Lim, Kwangeun Jung, Keon-Joon Lee, Junyoung Mun, Young-Kyu Han, Taeeun Yim
Summary: Ni-rich cathode materials have been under spotlight due to their high specific capacity, but suffer from inferior cycling performance due to undesired reactions in the cell. This study proposes triethanolamine borate (TEAB) as a functional additive to suppress electrolyte decomposition and inhibit Ni dissolution in Ni-rich cathodes, significantly improving cycling and safety performance. TEAB also effectively suppresses Ni dissolution by selectively scavenging fluoride species through a chemical reaction, leading to improved cycling stability and safety of the cell.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Van-Chuong Ho, Hyejin An, Meihua Hong, Suhyun Lee, Jineun Kim, Min Bum Park, Junyoung Mun
Summary: Research shows that surface coating of Ni-rich layered oxide cathodes can improve electrochemical performance, with the self-assembled ZrO2 coating enhancing surface stability and promoting high lithium ion diffusion.
Article
Energy & Fuels
Youngkwang Kim, Seonghun Jeong, Hyo Eun Bae, Artur Tron, Yung-Eun Sung, Junyoung Mun, Oh Joong Kwon
Summary: The study introduced a porous copper electrode that improves the initial coulombic efficiency and cycle stability of lithium batteries by removing residual copper sulfate salts, supporting the potential practical application of porous copper electrodes in lithium metal batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Jihyun Jang, Toshinori Sugimoto, Tomonobu Mizumo, Jae-Myung Lee, Won-Seok Chang, Junyoung Mun
Summary: In order to improve the energy density of lithium metal batteries, researchers have used a dual-solvent system with a fluorinated ether with high oxidative stability as a co-solvent to increase the electrolyte oxidation stability. By increasing the concentration of the salt coordinated by DME, the oxidation stability of the electrolyte is enhanced, resulting in improved stability and cycle performance of the batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Meihua Hong, Subin Lee, Van-Chuong Ho, Daon Lee, Seung-Ho Yu, Junyoung Mun
Summary: The electrochemical behavior of SEI formed by LiBOB on LCO is investigated at different cutoff voltages. LiBOB can suppress side reactions by forming SEI, but the SEI decomposes at high voltages, causing a decrease in electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Van-Chuong Ho, Bao Tran Duy Nguyen, Hai Yen Nguyen Thi, Jeong F. Kim, Junyoung Mun
Summary: Modifying the PE separator with dopamine can enhance its hydrophilicity in liquid electrolytes, leading to improved performance in NIBs, including high ionic conductivity and long cycle life.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Suhyun Lee, Jihyun Jang, Daon Lee, Jaemin Kim, Junyoung Mun
Summary: The study focuses on improving the energy density of aqueous rechargeable lithium-ion batteries (ARLBs) by constructing ultra-thick millimeter-scale LiFePO4 (LFP) electrodes. Enhanced electrolyte conductivity helps mitigate sluggish electrochemical behavior, allowing for improved cycle performance and rate capability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Van-Chuong Ho, Hana Lim, Myung Jun Kim, Junyoung Mun
Summary: This study presents an approach to improve the performance of aqueous zinc-ion batteries (ZIBs) and discusses the causes of side reactions and dendrite formation, as well as the correlation between the zinc metal anode, electrolyte, separators, and the performance of ZIBs. This research sheds light on the challenges associated with constructing high-performance ZIBs and is of significant importance for practical implementation.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Energy & Fuels
Van-Chuong Ho, Si Hyoung Oh, Junyoung Mun
Summary: In this study, a binder-free manganese oxide cathode electrode for rechargeable aqueous zinc ion batteries (AZIBs) was proposed. The cathode materials exhibited high capacity, reversible charge/discharge performance, and high rate performance. Factors influencing the electrochemical performance of the cathode materials were also investigated.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Ji Woo Han, Bo Keun Park, So Yeon Yang, Jimin Lee, Junyoung Mun, Jang Wook Choi, Ki Jae Kim
Summary: Using a PVDF film to coat zinc metal in zinc symmetric cells can improve the cyclability, corrosion resistance, and stability of zinc deposition.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jineun Kim, Suhyun Lee, Seonghun Jeong, Meihua Hong, Van-Chuong Ho, Yeong Don Park, Ki Jae Kim, Junyoung Mun
Summary: This study focuses on controlling the binder adhesion of poly(vinylidene fluoride) (PVDF) to improve the volume changes of Ni-rich cathode materials. A simple heat treatment at 200 degrees C enhances the binding force by altering the nanoscale alignment of PVDF. The electrochemical properties of the Ni-rich cathode with different levels of binder adhesion are evaluated to determine the optimal conditions for high performance.
Review
Chemistry, Physical
Seonghun Jeong, Yuankai Li, Woo Hyeong Sim, Junyoung Mun, Jung Kyu Kim, Hyung Mo Jeong
Summary: All-solid-state batteries (ASSBs) are attracting considerable attention due to their safety and high energy density, which meet the requirements of emerging battery applications. Current research focuses on utilizing high-energy negative electrode materials and reducing the amount of electrolyte to achieve high energy density in ASSBs. Sulfide-based ASSBs with high ionic conductivity and low physical contact resistance are gaining interest. This review summarizes various anode materials for ASSBs operating under electrochemically reducing conditions, and discusses strategies for mitigating interfacial failures through interlayer and electrode design.
Article
Electrochemistry
Jin Kyo Koo, Younghoon Yun, Jae Kwon Seo, Sung Hoon Ha, Dong Won Kim, Junyoung Mun, Young-Jun Kim
Summary: The pressure on electrodes in cells greatly affects their active material density and electronic conductivity. A single-layer pouch cell (60mAh) was used to study the electrochemical effects of external pressures ranging from 0 to 3 MPa. The high-pressure cell at 3 MPa showed poor capacity retention due to Li plating and pore-clogging on the graphite electrode. However, the optimized pressed cell did not hinder Li-ion transport in the graphite anode and achieved 82% capacity retention after 200 cycles. External pressure affects the electrode-electrolyte contact, but excessive pressure hinders the supplement of Li ions into the graphite anode, leading to increased polarization, electrolyte side reactions, and Li-metal deposition.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Ji Woo Han, Bo Keun Park, Yong Min Kim, Yoonbo Sim, Van-Chuong Ho, Junyoung Mun, Ki Jae Kim
Summary: The modification of electrolyte is an effective method to stabilize Li metal anodes and suppress dendrite growth. In this study, we introduced KTFSI as an electrolyte additive for Li metal batteries, which provided an electrostatic shielding effect. By analyzing and experimenting, we identified the optimal concentration of KTFSI that successfully suppressed Li dendrite growth. The potassium cation controlled the Li deposition behavior and resulted in the surface stabilization of Li metal anode. The designed electrolyte showed outstanding performance compared to the LiTFSI electrolyte in electrochemical testing.
MATERIALS CHEMISTRY FRONTIERS
(2023)