Small
·
2020
·Vol. 16
·期 40
·2003816
·
IF 11.459
Guolong Wang,Xiaoqian Cui,Jiamei Liu,Yaling Wang,Yide Qiao,Xiaowei Shi,Yan Zhang,Heguang Liu,Lei Li
Exploring new battery technologies will promote the advance of energy storage systems. Designing a symmetrical-structured rechargeable battery with the same electrode materials is a meaningful exploration for battery technology. Here, a solution-processed all-V 2 O 5 rechargeable battery with V 2 O 5 as both anode and cathode is presented, in which the anionic/cationic redox reactions are decoupled by precisely clamping its working potential windows. The battery shows good electrochemical performance with high capacity of 151 mAh g −1 at 0.10 C, good rate performance with 70% capacity retention when the current increases from 0.10 to 5 C, and promising cycling stability over 83% capacity retention after 900 cycles at 1 C. Moreover, the battery is highly profitable for simplified fabrication and scalable production, which benefits from its symmetrical configuration as well as the solution-processed strategy. This work offers a new paradigm to construct advanced symmetrical energy storage devices.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 33
·2406451
·
IF 27.4
Shixun Wang,Zhaodong Huang,Jiaxiong Zhu,Yiqiao Wang,Dedi Li,Zhiquan Wei,Hu Hong,Dechao Zhang,Qi Xiong,Shimei Li,Ze Chen,Nan Li,Chunyi Zhi
Zinc metal is recognized as the most promising anode for aqueous energy storage but suffers from severe dendrite growth and poor reversibility. However, the coulombic efficiency lacks specificity for zinc dendrite growth, particularly in Zn||Zn symmetric cells. Herein, a novel indicator ( f D ) based on the characteristic crystallization peaks is proposed to evaluate the growth and distribution of zinc dendrites. As a proof of concept, triethylenetetramine (TETA) is adopted as an electrolyte additive to manipulate the zinc flux for uniform deposition, with a corroborating low f D value. A highly durable zinc symmetric cell is achieved, lasting over 2500 h at 10 mA cm −2 and 400 h at a large discharge of depth (10 mA cm −2 , 10 mAh cm −2 ). Supported by the low f D value, the Zn||TETA-ZnSO 4 ||MnO 2 batteries overcome the sudden short circuit and fast capacity fading. The study provides a feasible method to evaluate zinc dendrites and sheds light on the design of highly reversible zinc anodes.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Gabriel Sikukuu Nambafu,Kumar Siddharth,Cheng Zhang,Tianshou Zhao,Qing Chen,Khalil Amine,Minhua Shao
Symmetric redox flow batteries utilizing a single redox active material as catholyte and anolyte, offer a plausible and unique strategy to alleviate cross-contamination issues during cycling, making them an ideal energy storage device for large scale applications. In this work, a low-cost riboflavin organic molecule is coupled with a 2,2,6,6-Tetramethylpiperidinyl-N-oxyl (TEMPO) radical molecule to form a single Riboflavin-TEMPO (RIBOTEMPO) bifunctional redox active material, which is used in both aqueous anolyte and catholyte. Cyclic voltammetry analysis of the combined molecule displays electrochemically reversible reactions for the redox couples at −0.72 V and 0.51 V versus Hg/Hg 2 SO 4 , leading to a theoretical cell voltage of 1.23 V. A symmetric cell testing demonstrated over 100 consecutive charge/discharge cycles with nearly 80% coulombic efficiency and capacity retention of 44.7% at a current density of 2.5 mA cm −2 . By utilizing a pH neutral supporting electrolyte , a low-cost, safe, and environmental-friendly redox flow battery is achieved. This work provides a pathway for the design and development of bifunctional redox active molecules for symmetric battery applications.
研究领域:
化学
·
能源科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Bingbing Chen,Aihu Feng,Ruixiang Deng,Kun Liu,Yun Yu,Lixin Song
Capacitive deionization (CDI) has become a promising method to solve the shortage of freshwater resources recently. However, the co-ion expulsion effect obviously hinders electrosorption capacity and charge efficiency of CDI. In this work, an asymmetric CDI cell is assembled in which Na+-intercalated Ti3C2Tx (NaOH-Ti3C2Tx) serves as a cation-selective cathode, while the activated carbon (AC) serves as the anode. The NaOH-Ti3C2Tx with negatively charged surface groups (−OH, −O, and −F) is adopted to weaken the co-ion expulsion effect. Benefited from the synergistic effect of the reduced co-ion expulsion effect and expanded interlayer space, the asymmetric CDI cell achieves a higher electrosorption capacity of 12.19 mg g–1 and a higher charge efficiency of 0.826 compared with the symmetric one composed of AC (4.55 mg g–1 and 0.306) in 100 mg L–1 NaCl solution. High cyclic stability of the as-prepared asymmetric CDI cell is also observed. The improved desalination performance indicates that NaOH-Ti3C2Tx is a promising alternative as cation-selective cathode material for asymmetric CDI cells. The desalination mechanism is discussed in detail to lay the foundation for further improvement of the CDI performance of other 2D materials like MXene.
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Zhu Jing,Wu Longkun,Peng Zhi,Li Shuo,Li Xudong,Zhang Zekun,Zhao Ningning,Li Bin,Meng Wei,Wang Ling,Dai Lei,He Zhangxing
Aqueous zinc ion batteries (AZIBs) have attracted widespread attention due to their unique advantages. However, the growth of dendrites on the anode and the occurrence of side reactions limits the improvement of electrochemical performance of AZIBs. The alloying of zinc anode effectively alleviates above problems, which is beneficial to the long-term cycle performance of AZIBs. In this study, zinc-copper alloy anode (Cu@Zn) was synthesized by melting method. The method is not only simple and easy to operate, but also can make the synthesized anode Cu element uniform distribution and improve the corrosion resistance of the anode. At the same time, the Cu@Zn surface reconstructed has a large proportion of Zn (002) crystal surface exposure, with the zinc affinity of Cu. Both of them can induce the uniform deposition of Zn 2+ ions along the Zn (002) crystal plane, further inhibiting the growth of dendrite. The Cu@Zn//Cu@Zn symmetrical batteries can cycle more than 1000 times at current densities of 0.3 and 1.2 mA cm −2 , and maintain a relatively low hysteresis voltage. And the discharge capacity retention rate of Cu@Zn//MnO 2 maintains 84.64% at 2.0 A g −1 after 1000 cycles. This study provides a new methodological reference for the development of advanced AZIBs anodes. Graphical abstract
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2019
·
IF 0
Tiancun Liu,Jiulin Hu,Chilin Li,Yong Wang
Li metal anode is deemed the most promising candidate anode for high-energy battery systems such as Li-sulfur and Li-fluoride batteries. However, some severe challenges, for example, facile formation and growth of Li dendrites, large volume evolution of hostless Li ,and low Coulombic efficiency of Li plating/stripping, still hinder the commercialization of Li-metal batteries (LMBs). Herein, a free-standing and highly flexible 3D current collector made of carbon nanofibers (CNFs) conformally coated by continuous Sn layer is synthesized by electrospinning method. Sn layer enables a lithiophilic and alloyable carbon skeleton surface and provides uniform and continuous Li nucleation sites, leading to unusual conformal Li plating behavior and effective inhibition of Li dendrites. The spatial confinement of Li plating mitigates the volume expansion and network distortion of CNFs. The electric contact reinforced by Sn interlayer achieves highly reversible Li stripping for more than 850 h for CNF-Sn@Li symmetric cell. The small nucleation overpotential (28 mV) and potential polarization (14 mV for symmetric cell) benefit from the low energy barrier of Li–Sn alloying and following Li nucleation on Li–Sn layer. For CNF-Sn@Li-LiFePO4 full cell, the capacity retention ratio is as high as 92.2% after 150 cycles at 0. 5C and the reversible capacities are maintained at 134.3 and 106.7 mAh g–1 at 2C and 5C respectively. The design of 3D lithiophilic current collector instead of planar Cu is a potential solution to highly safe LMBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
Energy Storage Materials
·
2022
·
IF 20.831
Kuikui Xiao,Jian-Fang Wu,Hanghang Yan,Ying Mo,Wang Zhou,Yufan Peng,Shi Chen,Xiangyang Cui,Lei Chen,Chaohe Xu,Jilei Liu
Metallic potassium (K) anodes are highly desirable for high energy density batteries . However, challenges lie in uncontrollable dendrite growth and/or inevitable generation of dead K. Here, composite anodes are constructed by covering a layer of aligned carbon fiber on the surface of each metallic K anode (K-ACF). Symmetrical K-ACF//K-ACF cells can work stably without short circuit for over 600 h, which is quite longer than cells using composite anodes with unaligned carbon fiber (K-UCF) and bare metallic K anodes. Comprehensive characterizations reveal a stepwise intercalation-deposition process on the K-ACF anode during the K plating, and the intercalation is proved to be necessary for the uniform K + flux due to the improved potassiophility of potassiated ACF. Besides, the aligned structure of ACF offers a uniform current density and K + ion flux on the surface of composite anodes, promoting the stable K stripping/plating. The K-ACF//Prussian blue (PB) cell exhibits a high discharge capacity of 83.6 mAh g −1 (267.4 Wh kg −1 based on the mass of PB) under a charge/discharge rate of 200 mA g −1 with a capacity loss rate of 0.044% per cycle. This work opens up a new avenue toward high energy and dendrite-free potassium batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Yao Li,Zhixiang Tan,Yongshi Liang,Yong Xiao,Dandan Cen,Yingliang Liu,Yeru Liang
Zinc-based batteries have ushered in the recent times due to their high theoretical capacity, low-cost, and great safety. However, the severe dendrite growth of Zn anodes has restricted their further development. In this work, an amine-functionalized carbon cloth (CC) was fabricated and adopted as the host to prepare a dendrite-free Zn anode. Experimental results and density functional theoretical calculations demonstrate that the amine functionalization not only improves the binding energy between the Zn atoms and CC but also inhibits the Zn atom adsorption-induced decrease of conductivity. As a result, the dendrite-suppressed anode enjoys stable voltage profiles over 250 h at a current density of 0.5 mA cm–2 in a symmetrical half-cell, which is nearly five times as long as that of the conventional Zn anode. Consequently, the Zn/MnO2 full-cell modified with the amine-functionalized CC shows an excellent capacity retention of 94.0% with a Coulombic efficiency of 93.6% after 6800 cycles.
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
RARE METALS
·
2019
·
IF 1.785
Jiao Can,Sun Hao-Bo,Zhang Li,Zhao Shang-Qian,Pang Guo-Yao,Zhao Chun-Rong,Lu Shi-Gang
Abstract Lithium (Li) metal is the most promising electrode for next-generation rechargeable batteries. In order to push the commercialization of the lithium metal batteries, a kind of nitrogen(N)-doped composite graphene (NCG) adopted as the Li plating host was prepared to regulate Li metal nucleation and suppress dendrite growth. Furthermore, a new kind of sandwich-type composite lithium metal (STCL) electrode was developed to improve its application. The STCL electrode can be used as convenient as a piece of Li foil but no dendrite growth. In a symmetric battery, the STCL electrode cycled for more than 4500 h with the overpotential of less than 40 mV. And due to the creative design, the STCL promises the Li–S battery with a prolonged cycling lifespan. Graphical Abstract
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xiaoqin Zhang,Yijun Zhai,Bin Xie,Min Li,Haoran Lang,Yi Yang,Ji Chen,Yuxiang Chen,Qiaoji Zheng,Yu Huo,Ruyi Zhao,Kwok-Ho Lam,Dunmin Lin
Aqueous zinc-ion batteries (AZIBs) have attracted significant attention owing to their inherent security, low cost, abundant zinc (Zn) resources and high energy density. Nevertheless, the growth of zinc dendrites and side reactions on the surface of Zn anodes during repeatedly plating/stripping shorten the cycle life of AZIBs. Herein, a simple organic molecule with abundant polar functional groups, 2,2,2-trifluoroether formate (TF), has been proposed as a high-efficient additive in the ZnSO 4 electrolyte to suppress the growth of Zn dendrites and side reaction during cycling. It is found that TF molecules can infiltrate the solvated sheath layer of the hydrated Zn 2+ to reduce the number of highly chemically active H 2 O molecules owing to their strong binding energy with Zn 2+ . Simultaneously, TF molecules can preferentially adsorb onto the Zn surface, guiding the uniform deposition of Zn 2+ along the crystalline surface of Zn(0 0 2). This dual action significantly inhibits the formation of Zn dendrites and side reactions, thus greatly extending the cycling life of the batteries. Accordingly, the Zn//Cu asymmetric cell with 2 % TF exhibits stable cycling for more than 3,800 cycles, achieving an excellent average Columbic efficiency (CE) of 99.81 % at 2 mA cm −2 /1 mAh cm −2 . Meanwhile, the Zn||Zn symmetric cell with 2 % TF demonstrates a superlong cycle life exceeding 3,800 h and 2,400 h at 2 mA cm −2 /1 mAh cm −2 and 5 mA cm −2 /2.5 mAh cm −2 , respectively. Simultaneously, the Zn//VO 2 full cell with 2 % TF possesses high initial capacity (276.8 mAh/g) and capacity retention (72.5 %) at 5 A/g after 500 cycles. This investigation provides new insights into stabilizing Zn metal anodes for AZIBs through the co-regulation of Zn 2+ solvated structure and surface crystallography.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yuqiang Zhang,Cen Zhang,Xiaomeng Chu,Zhengyang Gou,Kaiyang Zheng,Yaying Dou,Shaojie Liu,Wentao Niu,Yantao Zhang
The relentless pursuit of high-energy-density lithium battery innovation compels the emergence of stable and high-performance anodes, serving as a cornerstone for transformative advancements. However, the rampant dendrites growth and unbridled volumetric expansion of lithium anodes gravely undermine Coulombic efficiency and markedly curtail the cycling longevity. Herein, an exquisite micron-scale artificial film crafting from polymers of intrinsic microporosity (PIMs) combined a rigid structural framework with pliant segments confers extraordinary mechanical strength (5.28 GPa) and outstanding flexibility, which were unveiled to curtail Li dendrite proliferation and mitigate parasitic side reactions. The intrinsic nanoscale pores and electronegative functional groups of the PIM-based film adeptly regulate lithium-ion transport, fostering uniform deposition and stripping with a high Li + transference number of 0.946. Density functional theory (DFT) calculations reveal a strong affinity between the AO-PIM-1 coating and Li + . The AO-PIM-1@Cu anode achieves an impressive Coulombic efficiency of 98.45 % after 180 cycles at 0.5 mA cm −2 . Moreover, the modified Li|Li symmetrical cell demonstrates exceptional stability, sustaining over 8000 h under 10 mA cm −2 at a capacity density of 5 mAh cm −2 . This work profoundly expands the design horizon for artificial SEI, offering a compelling avenue for the practical realization of lithium metal batteries.
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
RSC Advances
·
2016
·Vol. 6
·期 105
·103508-103516
·
IF 3.289
Guofu Ma,Fengting Hua,Kanjun Sun,Zhiguo Zhang,Enke Feng,Hui Peng,Ziqiang Lei
Sorghum stalk based porous carbons (SSCs) have been synthesized through a simple carbonization method at 800 °C used sorghum stalk as carbon precursor and ZnCl2 as activating agent. The morphology and structure of the SSCs are investigated by scanning electron microscopy, transmission electron microscopy, nitrogen adsorption–desorption, Raman spectra and X-ray diffraction. Undergoes activation at optimal amount of zinc chloride (sorghum stalks to ZnCl2 is 1 : 1), the resulting samples, labeled as SSC1.0 has a porous texture with high specific surface area and efficient ion diffusion channels (1354.7 m2 g−1 specific surface areas and 0.765 cm3 g−1 pore volumes), and the sample also has superhydrophilicity characterized by water contact angles. As supercapacitor electrode, it can deliver 216.5 F g−1 specific capacitance at 0.5 A g−1, 75% capacitance retention even at 8 A g−1 in 2 mol L−1 KOH aqueous electrolyte and excellent cyclic stability with 92% capacitance retention after 5000 cycles at 5 A g−1. Moreover, the assembled SSC1.0//SSC1.0 symmetric cell has wide voltage range of 1.8 V, and high energy density in 0.5 mol L−1 Na2SO4 aqueous electrolyte.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
环境功能材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）