Energy Storage Materials
·
2019
·
IF 0
Liangdong Lin,Jianxu Wang,Rui Li,Chunming Wang,Chenghui Zhang,Jian Yang,Yitai Qian
Li metal anodes as one of promising anodes in next-generation batteries , face the challenges from infinite volume change and high reactivity to electrolytes that easily leads to unstable Li/electrolyte interface and unique dendrite growth of Li. Although mechanical pressure can effectively inhibit the dendrite growth of Li, it also increases the risk of short circuits, because Li metal easily grows into the separator under pressure. Here, an interface layer is introduced on Li metal to block this growth, using Li 3 P/LiCl as a model. Meanwhile, the dense and robust layer also reduce the side reactions between Li and electrolytes. With the helps from mechanical pressure and interface layer , this design exhibits the improved electrochemical performances, much better than that without pressure or without the layer. The full cells of Li 3 P/LiCl-coated Li//LiFePO 4 , show a capacity of 1.69 mAh cm −2 after 1000 cycles under pressure at 3.9 mA cm −2 with a capacity retention of 99.5% in carbonates. The results indicate the promising potential for the pressure effect to be used for advanced Li metal anodes .
研究领域:
材料科学
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电化学
·
能源存储
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产品关联
DOI
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yixi Kuai,Feifei Wang,Jun Yang,Zhixin Xu,Hongping Li,Xiaochuan Xu,Yanna Nuli,Jiulin Wang
The high-voltage Ni-rich LiNixCoyMnzO2 cathode materials attract attention due to their high capacity and relatively low cost. However, the undesired instability originating from side reactions with liquid electrolytes at elevated temperatures still hinders their practical application. This research aims to build a stable interface between cathode and electrolyte. We use the coupling agent KH570 to induce vinyl ethylene carbonate (VEC) monomers to in situ polymerize on the surface of LiNi0.6Co0.2Mn0.2O2 (NCM622) to form a uniform, ultrathin (∼12 nm), and highly ion-conductive poly(vinyl ethylene carbonate) (PVEC) solid polymer electrolyte layer. The modified cathode material exhibits significant improvement in rate performance and cycling stability up to 4.5 V at elevated temperatures. Scanning electron microscopy and X-ray diffraction techniques prove that the flexible polymer coating layer effectively suppresses the mechanical degradation and crystal structure changes during cycling.
研究领域:
材料科学
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电化学
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储能技术
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yuan Li,Lei Zhao,Yongtao Tan,Xiangye Li,Rui Wang,Yuanyou Peng,Youzhi Wu,Fen Ran
Dendritic growth, hydrogen evolution reaction, and passivation of zinc anode severely limit the practical use of zinc metal batteries. Developing acidic electrolyte additives is capable of markedly augmenting the stability of zinc anode. However, the adsorption type of acidic additives on zinc anode is still unclear and its mechanism of stabilizing zinc anode needs to be further studied. In this work, the adsorption types of three dicarboxylic acids on zinc anode and action mechanism of stabilizing zinc anode are investigated in depth. The results show that the adsorption type of dicarboxylic acid on zinc anode is chemical adsorption instead of physical adsorption. The dicarboxylic acid reacts with the zinc anode to produce corresponding dicarboxylate and H 2 . The dicarboxylate significantly inhibits the side reactions occurring at the zinc anode. As the number of -OH groups on the dicarboxylic acid backbone increases, the faster the chemical adsorption rate, the better the inhibition of side reactions. However, the loss of zinc anode is also more serious. In addition, the relationship between the SEI structure of Zn anode and the chemical adsorption of organic acids is explored. Compared with malic acid and tartaric acid additives, succinic acid additive has the best effect in stabilizing Zn anode. Zn||Cu asymmetric battery can be stably cycled for upwards of 2, 760 h at 4 mA/cm 2 and 4 mAh/cm 2 . This work provides valuable guidance for elucidating the action mechanism of stabilizing zinc anode with acidic electrolyte additives.
研究领域:
电化学
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材料科学
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储能技术
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表面化学
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电池技术
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产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2024
·Vol. 43
·期 4
·1599-1609
·
IF 9.6
Xu Bin-Rui,Li Quan-An,Liu Yong,Wang Guang-Bin,Zhang Zi-He,Ren Feng-Zhang
Aqueous zinc-ion batteries (AZIBs) have been regarded as prospective rechargeable energy storage devices because of the high theoretical capacity and low redox potential of Zn metal. However, the uncontrollable formation of dendrites and the water-induced side reactions at the Zn/electrolyte interface, and the poor reversibility under a high current density (> 2 mA·cm −2 ) and large area capacity (> 2 mAh·cm −2 ) still limit the practical applications of AZIBs. Therefore, a strategy that can overcome these difficulties is urgently needed. Here, we introduce an environmentally friendly and low-cost additive, namely urea, to the electrolyte of AZIBs to induce uniform Zn deposition and suppress the side reactions. Measurements of the adsorption behavior, electrochemical characterization, and observations of the morphology revealed the interfacial modification induced by urea on the Zn/electrolyte interface, demonstrating its huge potential in AZIBs. Consequently, the long-term cycling stability (over 2100 h) of a Zn/Zn symmetric cell under a high current density of 5 mA·cm −2 and a capacity of 5 mAh·cm −2 was achieved with a 1 mol·L −1 ZnSO 4 electrolyte with the urea additive. Additionally, the assembled Zn/NH 4 V 4 O 10 full cell with urea exhibited excellent cycling performance and an outstanding average Coulombic efficiency of 99.98%. These results indicate that this is a low-cost and effective additive strategy for realizing highly reversible AZIBs. Graphical abstract
研究领域:
储能
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电化学
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材料科学
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界面工程
✓ 已验证
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Yushuang Yang,Yaoyao Liu,Lutan Dong,Xianglin Yin,Haichen Huang,Lequan Deng,Zhaofen Wang,Haoying Qi,Xingmin Yu,Jian-Jun Wang,Peihua Zhu,Hong Liu,Hao Chen
Inactive magnesium, including electrochemically formed nanoscale Mg2+ ions in the solid electrolyte interphase (SEI Mg2+) and electrically isolated unreacted nano metallic Mg (Mg0), contributes to poor capacity and cycle life in magnesium metal batteries. Nevertheless, the precise quantification of nanoscale SEI Mg2+ versus inactive Mg0, as well as their formation mechanisms and relationship with the anode cycling reversibility, remains elucidated, thereby hindering progress in anode optimization design. Here, a magnesium-targeted acid-assisted continuous titration-collection-gas chromatography (AAC-TCGC) technique is developed to precisely quantify the percentage of nanolevel inactive SEI Mg2+ and Mg0 in Mg anode, revealing that the predominant contributor to Mg loss is the nanolevel inactive SEI Mg2+, which is different from the well-known inactive metal-dominant loss mechanism in Li/Zn battery. We find that the nanoscale SEI Mg2+ is mainly from the side reaction of the Mg anode with electrolyte anions/solvents or contaminants. We also discover a phenomenon that uniaxial stack pressure has no effect on altering the performance or morphology in the Mg metal anode (also distinct from Li/Zn anode behavior), highlighting the importance of nanoscale SEI Mg2+ loss tuning for magnesium metal battery construction. This study offers theories and approaches concerning the quantification and formation mechanism of inactive magnesium, crucial for developing high-performance magnesium metal batteries.
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yuhan Fu,Yali Li,Yang Chen,Jidong Hu,Hai Liu,Jiawei Zhao,Shoukun Zhao,Hongyun Ma,Yujun Fu,Deyan He,Junshuai Li
The performance of aqueous zinc-ion batteries is frequently hindered by anode-related issues such as uncontrolled dendrite formation and side reactions. Metal–organic frameworks (MOFs), characterized by their highly ordered porous structures, remarkably large specific surface areas, and tunable active sites, offer a promising solution by regulating Zn2+ flux and promoting uniform Zn deposition. In this study, a Cu-MOF was synthesized in situ on carbon cloth (CM-C) and functioned as an ion-buffering layer within the battery. This innovative configuration significantly mitigates side reactions, achieving an extended cycle life of nearly 800 h at a high current density of 10.0 mA cm–2 (areal capacity: 10.0 mA h cm–2) and nearly 1200 h at 5.0 mA cm–2. After 2000 cycles at 5.0 mA cm–2, the battery demonstrated an average Coulombic efficiency of 99.3%. Additionally, the full battery containing CM-C demonstrated enhanced capacity and stability. This simple and novel structure provides new possibilities for enhancing the cycling stability of zinc-ion batteries.
研究领域:
储能
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材料科学
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电化学
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纳米技术
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电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Exploration
·
2025
·
IF 22.5
Dongping Chen,Xipo Ma,Weihao Xu,Chunshuang Yan,Pengbo Lyu,Qiang Zhu,Huaming Yu,Zhenren Gao,Chade Lv
Irregular dendrite growth and complex side reactions pose critical challenges that significantly impede the further industrialization of aqueous zinc-ion batteries (AZIBs). The “competitive co-solvents” strategy could introduce hydrogen bond (H-bond) accepting sites to effectively alleviate the free water molecules. however, it suffers from low conductivity, high cost, and safety risks. Herein, we selected N , N '-methylenebisacrylamide (MBA) as a trace additive with amide groups to decrease the activity of water by disrupting the H-bond. The MBA additive, which incorporates both hydrogen bond donor and acceptor functionalities, successfully restricts H 2 O molecules within a double-site anchoring configuration. This configuration enhances hydrogen-bonding interactions and breaks part of the original hydrogen bond network among H 2 O molecules, thereby significantly restraining parasitic side reactions due to the decomposition of active water. Additionally, MBA molecules adsorbed on the surface of the Zn anode could regulate the desolvation and nucleation processes of zinc ions, achieving dense and flat zinc deposition. A high Zn reversibility with Coulombic efficiency (CE) of 99.74% and ultra-long lifespan of 2800 cycles at 1 and 0.5 mAh cm −2 was demonstrated. Besides, a highly reversible Zn electrode significantly boosted the overall performance of Zn//Zn symmetric cells of 1500 h at 5 mA cm −2 and Zn//V 2 O 5 full cell of 2000 cycles at 5 A g −1 .
研究领域:
储能
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材料科学
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电化学
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电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Jialong Shi,Yunhao Zhu,Jing Wang,Mansoor Khan,Fanghua Ning,Xiaoyu Liu,Shigang Lu,Jin Yi
Halide-based solid-state electrolytes (SSEs) exhibit favorable ionic conduction with wide electrochemical windows, yet their practical applications are significantly constrained by the interfacial instability between the electrolyte and cathode. In this work, the compatibility and interaction mechanisms between Li3InCl6 (LIC) and single-crystal LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode material at high voltage have been in-depth investigated. It has been found that spontaneous delithiation can be triggered via direct contact between LIC and NCM811, leading to capacity degradation. However, at a high voltage of 4.7 V, the proposed LIC-based all-solid-state battery presents exceptional cycling stability with 84.7% capacity retention after 200 cycles, outperforming that of 70.8% retention at 4.4 V. The oxidation of LIC at 4.7 V triggers a self-limiting side reaction, leading to the formation of a well-adhered cathode-electrolyte interphase (CEI) through interfacial oxygen scavenging, which suppresses further side reactions and enhances interfacial electrochemical stability. This work provides fundamental insights for designing high-voltage all-solid-state batteries (ASSBs) and advances research on cathode-electrolyte compatibility.
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产品关联
DOI
高影响因子
Advanced Energy Materials
·
2022
·Vol. 12
·期 20
·2200813
·
IF 29.698
Weiyuan Huang,Qi Zhao,Mingjian Zhang,Shenyang Xu,Haoyu Xue,Chen Zhu,Jianjun Fang,Wenguang Zhao,Guoxi Ren,Runzhi Qin,Qinghe Zhao,Haibiao Chen,Feng Pan
LiCoO 2 (LCO) is the most successful cathode material for commercial lithium-ion batteries. Cycling LCO to high potentials up to 4.5 V or even 4.6 V can significantly elevate the capacity but cause structural degradation due to the serious surface side reaction between the highly oxidized Co 4+ and O − species with organic electrolytes. To tackle this concern, a new strategy, constructing cation and anion dual gradients at the surface of LCO (DG-LCO), is proposed. Specifically, the electrochemically inactive cation and anion are selected to substitute Co 3+ and O 2− at the surface in a gradated manner, thus minimizing the highly oxidized Co 4+ and O − species at high potentials and suppressing the induced surface side reactions. Unexpectedly, this dual gradient design leads to a spinel-like surface structure coherently with bulk layered structure, which facilitates Li + diffusion kinetics. Thus, DG-LCO achieves high capacity and excellent cycling stability at 4.6 V (≈216 mA h g −1 at 0.1 C, a capacity retention of 88.6% after 100 cycles in 1.8 A h pouch full cell at 1 C), as well as improved rate capability (≈140 mA h g −1 at 5 C). These studies provide useful guidelines for future design of cathode materials with long lifespan and high rate capability.
研究领域:
材料科学
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电化学
·
储能
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Donghan Xu,Cuijuan Zhang,Yongdan Li
Derived from N-(ferrocenylmethyl)-N-(butylphthalimide)-N,N-dimethylammonium bis(trifluoromethane-sulfonyl)imide (FcPI-TFSI), ferrocene/naphthalimide (FcNI-TFSI) based ionic bipolar redox-active organic molecule is constructed via nucleophilic substitution between amines and halogenated hydrocarbons. Due to the elevated delocalized negative charge density in the radical anion, the FcNI-TFSI based nonaqueous redox flow batteries (NARFBs) exhibits substantially improved cycling stability; 764 and 233 cycles are successfully performed before 50% of the initial discharge capacity is lost at 0.01 M and 0.1 M, respectively, whereas 82 cycles for FcPI-TFSI at 0.01 M. Similar to capacity diving phenomenon in lithium-ion batteries, sudden accelerated capacity loss is observed in the high-concentration battery. The possible degradation mechanism is discussed, involving crossover issue and parasitic reactions.
研究领域:
化学
·
材料科学
·
电化学
·
能量存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Shidong Song,Limei Yu,Yanli Ruan,Jian Sun,Butian Chen,Wu Xu,Ji-Guang Zhang
Irreversible parasitic reactions and the resulting accumulation of insulating side products are main barriers for practical application of rechargeable lithium–oxygen (Li O 2 ) batteries . Therefore, it is critical to develop multifunctional oxygen electrodes suitable for oxygen reduction reaction , oxygen evolution reaction , and decomposition of side reaction products. Here we report the application of ultrafine ruthenium on boron carbide (Ru/B 4 C) with highly efficient multifunctional activities as carbon-free oxygen electrodes for Li O 2 batteries. Li 2 CO 3 and LiOH can be completely decomposed by Ru/B 4 C at 4.0 V and 4.1 V, respectively, within the stability window of the electrolyte. A Li O 2 battery using the Ru/B 4 C oxygen electrode achieves low overpotentials for Li O 2 reactions, and excellent cycling performance under the capacities of 300 and 500 mAh g −1 Ru/B4C . In-situ gas chromatography analysis reveals that O 2 is the major gas product during charging. Only a negligible amount of CO 2 is observed in the first charging process. Therefore, Ru/B 4 C can be a very promising oxygen-electrode material for Li O 2 batteries and Li–air batteries operated in ambient air.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULES
·
2025
·
IF 5.2
Lixin Sun,Yanan Sun,Chenliang Tang,Fangfei Xin,Chuanxing Wang,Lei Xu,Li Ding,Yuetao Liu
Poly(fluorosiloxane) (PMTFPS) holds significant potential for applications in coatings, sealing materials, and sensors. A main barrier to high-precision PMTFPS, particularly PMTFPS with a narrow molecular weight distribution, is the severely backbiting side reactions during anionic ring-opening polymerization (AROP) of trimethyl trifluoropropyl cyclotrisiloxane (D3F) monomers. To address this issue, we developed a binary organocatalytic system based on sodium hexamethyldisilazane (NaHMDS) and indolecarbazole (ICZ). In this system, the sodium salt (NaICZ) generated during the reaction activates the initiator benzyl alcohol (BnOH), forming an initiating system that features dual hydrogen bonding and exhibits low nucleophilicity (with a nucleophilicity index of 4.05 eV). Mechanistic analysis demonstrated that introducing ICZ as a hydrogen bond donor increases the activation energy barrier of the chain initiation rate-determining step (ΔG = 13.23 kcal/mol) and enhances the stability of the active center (E = −18.80 kcal/mol), effectively suppressing backbiting reactions.
研究领域:
高分子化学
·
材料科学
·
有机催化
·
氢键相互作用
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）