ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Guocheng Li,Geng Chen,Chengjin Liu,Yu Xin,Eryang Mao,Chang Zhang,Wei Xiao
Sodium (Na) metal is one of the most promising anodes for next-generation Na metal batteries due to its high theoretical specific capacity and low potential. Nevertheless, the uncontrollable dendritic Na growth and the hostless nature impede its practical applications. Herein, we report a dendrite-free composite Na metal anode that delivers low potential hysteresis during cycle. The anode is composed of 10 wt% phosphorus-coated carbon black, which can be derived into uniformly distributed sodium phosphide host during repeated mechanical kneading processes. High ionic conductive sodium phosphide greatly promoted the even distribution of Na + flux and its transportation kinetics, thus effectively inhibiting the growth of Na dendrites and improving the cycling stability of the composite anode. Additionally, robust alloy host in anode enhances the mechanical flexibility and relieve the issue of poor processability owing to sticky property of metallic Na. As a result, the symmetric cells using thin composite electrode exhibits long-term cycling with low potential hysteresis (21 mV at 1 mA cm −2 and 80 mV at 3 mA cm −2 ). Impressively, a full cell paired with Na 3 V 2 (PO 4 ) 3 cathode shows a high capacity-retention of 90.7 % for 1000 cycles at 0.5 C .
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 18
·3728
·
IF 5
Lin Zhang,Xiaofei Zhang,Yingcai Gui
Coordination polymers (CPs) have attracted greater scientific attention as promising electrode materials for lithium–ion batteries (LIBs) due to their diverse and versatile structural chemistry. This study introduces a croconate-based one-dimensional CP, namely [Fe(C5O5)(H2O)3]n) (referred to as Fe-CP), as an efficient anode material with high-performance characteristics for rechargeable LIBs. The ligand with abundant redox sites coordinating to the transition metal ion endowed the anode material with a remarkable stability in the electrolyte, in addition to high capacity, high-rate capability, and high cycling performance during charging/discharging process. The Fe-CP has a unique chain-based supramolecular structure, setting it apart from other porous three-dimensional molecular materials. The presence of unrestricted channels between the chains facilitates the diffusion of lithium ions in this unique structure. When tested at 100 mA g−1over a range of voltages between 0.01 and 2.4 V, the Fe-CP anode demonstrated a noteworthy specific capacity of 521 mA h g−1over 140 cycles. Moreover, the Fe-CP anode material exhibited excellent rate performance and demonstrated favorable cyclability. Following exposure to high charging and discharging rates of 2 A g−1, the anode ultimately regained its initial capability when the current rate was back at 100 mA g−1.Keywords:coordination polymers;one-dimensional;croconate-based;anode
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
MOLECULES
·
2023
·Vol. 28
·期 12
·4789
·
IF 4.6
Xin Yang,Tie Shu,Haoyu Huang,Hongquan Yi,Yanchi Zhang,Wei Xiao,Liang Li,Yuxin Zhang,Minghao Ma,Xingyuan Liu,Kexin Yao
Aqueous zinc ion batteries (AZIBs) are promising electrochemical energy storage devices due to their high theoretical specific capacity, low cost, and environmental friendliness. However, uncontrolled dendrite growth poses a serious threat to the reversibility of Zn plating/stripping, which impacts the stability of batteries. Therefore, controlling the disordered dendrite growth remains a considerable challenge in the development of AZIBs. Herein, a ZIF-8-derived ZnO/C/N composite (ZOCC) interface layer was constructed on the surface of the Zn anode. The homogeneous distribution of zincophilic ZnO and the N element in the ZOCC facilitates directional Zn deposition on the (002) crystal plane. Moreover, the conductive skeleton with a microporous structure accelerates Zn2+transport kinetics, resulting in a reduction in polarization. As a result, the stability and electrochemical properties of AZIBs are improved. Specifically, the ZOCC@Zn symmetric cell sustains over 1150 h at 0.5 mA cm−2with 0.25 mA h cm−2, while the ZOCC@Zn half-cell achieves an outstanding Coulombic efficiency of 99.79% over 2000 cycles. This work provides a simple and effective strategy for improving the lifespan of AZIBs.Keywords:aqueous zinc ion batteries;MOFs;anode;dendrite growth
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
Coatings
·
2023
·Vol. 13
·期 3
·490
·
IF 3.4
Guangwan Zhang,Chunhua Han,Kang Han,Jinshuai Liu,Jinghui Chen,Haokai Wang,Lei Zhang,Xuanpeng Wang
Sodium-ion batteries (SIBs) are considered a potential replacement for lithium-ion batteries in the area of low-cost large-scale energy storage. Due to its low operating voltage, high capacity, non-toxicity and low production cost, titanium dioxide is now among the anode materials under investigation and shows the most promise. However, its poor electrical conductivity is one of the main reasons limiting its large-scale application. Herein, we designed a ruthenium-doped anatase-type VTi2.6O7.2ultrafine nanocrystal (Ru-VTO). As the anode of SIBs, Ru-VTO delivers a high specific capacity of 297 mAh g−1at 50 mA g−1, a long cycle life of 2000 cycles and a high rate capability (104 mAh g−1at 1000 mA g−1). The excellent performance may be related to the solid-solution interatomic interactions and the enhanced conductivity after ruthenium doping. These studies demonstrate the potential of Ru-VTO as an anode material for advanced SIBs.Keywords:titanium-based material;ru doping;high conductivity;anode;sodium-ion battery
研究领域:
材料科学
·
电化学
·
能量存储
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Ziqiang Liu,Xiao Fu,Zhendong Li,Dingcheng Guo,Zhe Peng,Ruijuan Xiao,Xiayin Yao
Lithium metal anode has attracted increasing attention due to its ultra-high theoretical specific capacity and low redox potential. However, the severe interface problems caused by the parasitic reactions at the anode/separator interface greatly hinder its applications. Herein we design a 3D lithium−boron (LiB) fiber integrated lithium anode with polypropylene separator through the interfacial adhesive strategy with poly(vinylidene fluoride- co -hexafluoropropylene)-based polymer electrolyte. The 3D Li/LiB anode after chemical etching can increase the exchange current density to 36.8 mA cm −2 , which is about 14 times the value of the pristine anode with 2.6 mA cm −2 . Meanwhile, the poly(vinylidene fluoride- co -hexafluoropropylene)-based polymer electrolyte ensures high ionic conductivity and interfacial stability. Thus, the integrated anode with 3D electron/ion conductive network can guide Li deposition away from the unsafe anode/separator interface, and directly suppress the growth of lithium dendrites. As a result, the integrated anode with LiNi 0.83 Mn 0.06 Co 0.11 O 2 cathode exhibits an excellent discharge capacity of 168.3 mAh g − 1 at a high current density of 5 C. Besides, the rigid LiB skeleton coupling with flexible PVDF-HFP-based polymer electrolyte can effectively prevent the pulverization of lithium anode during long-term cycling, showing superior cycling stability of 1000 cycles at 1 C with a capacity retention of 76 %. This work provides a promising integrated anode for stable lithium metal batteries without lithium dendrite growth.
研究领域:
能源材料
·
电化学
·
电池技术
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2019
·
IF 3.218
Zheng-Guang Hu,Zhi-Yuan Tan,Zhong Lin,Jun Chen,Fang Sun,Xuyao Tang,Rui-Ting Zheng,Yong-Chong Chen,Guo-An Cheng
Si is one of the most attractive anode materials because of its extremely high theoretical capacity. In this study, we find that the (111) plane of crystalline Si in the anode is still present after 100 cycles and infer that it is the intercalation site of Li + ions. We believe that Li + ions are inserted into the tetrahedral sites of crystalline Si, and the (111) plane of Si collapses; meanwhile, expansion parallel to 〈220〉 crystal orientation occurs. After full lithiation , the crystalline Si is converted to amorphous silicon . In a Si/ composite anode, although the addition of amorphous carbon may improve the cycling performance of Si anode, the activation process is prolonged as the amount of amorphous carbon increased. We determine that amorphous carbon may reduce the diffusion of Li + , which increases the overpotential and results in the lower formation of the saturated Li/Si alloy.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zongzhe Liu,Shaobo Ma,Xue Mu,Renlong Li,Geping Yin,Pengjian Zuo
A silicon anode with ultra-high specific capacity has motivated tremendous exploration for high-energy-density lithium ion batteries while it still faces serious issues of irreversible lithium loss, unstable electrode electrolyte interface (SEI), and huge volume expansion. Prelithiation is a crucial technology to alleviate the harm of active lithium loss of silicon-based full-cell systems. Herein, we reported a cathode prelithiation method using Li2S-PAN as a lithium “donor”, which was synthesized via chemical reaction between sulfurized polyacrylonitrile and Li-biphenyl complex. The Li2S-PAN with an initial charging capacity of 668 mAh g–1 (2.5–4.0 V) is loaded on the LiFePO4 electrode, and the LiFePO4/Li2S-PAN composite electrode displays a high initial charge capacity of 206 mAh g–1, which is 22.3% higher than the pristine LiFePO4. With a silicon/graphite/carbon (Si/G/C) composite anode, the Si/G/C||LiFePO4/Li2S-PAN full cell exhibits a reversible capacity of 123 and 107 mAh g–1 in the 1st and 10th cycle, which is 15.5 and 24.5% higher than the Si/G/C||LiFePO4 battery, respectively. The SEI layer of the silicon anode in the Si/G/C||LiFePO4/Li2S-PAN cell contains abundant conductive LiF species, which can enhance the interfacial stability and reaction kinetics of the cells. The proposed cathode prelithiation process is compatible with the industrial roll-to-roll electrode preparation process, exhibiting a promising application prospect.
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
Nanomaterials
·
2021
·Vol. 11
·期 9
·2203
·
IF 5.076
Hong Wang,Yuejin Ma,Wenming Zhang
Nanoscale Fe3O4-Sn@CNFs was prepared by loading Fe3O4and Sn nanoparticles onto CNFs synthesized via electrostatic spinning and subsequent thermal treatment by solvothermal reaction, and were used as anode materials for lithium-ion batteries. The prepared anode delivers an excellent reversible specific capacity of 1120 mAh·g−1at a current density of 100 mA·g−1at the 50th cycle. The recovery rate of the specific capacity (99%) proves the better cycle stability. Fe3O4nanoparticles are uniformly dispersed on the surface of nanofibers with high density, effectively increasing the electrochemical reaction sites, and improving the electrochemical performance of the active material. The rate and cycling performance of the fabricated electrodes were significantly improved because of Sn and Fe3O4loading on CNFs with high electrical conductivity and elasticity.Keywords:Fe3O4;Sn;carbon nanofibers;lithium-ion batteries;anode material
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
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Hao Wu,Wenfang Feng,Michel Armand,Zhibin Zhou,Heng Zhang
Carbonyl-based negative electrodes have received considerable interest in the domain of rechargeable lithium batteries, owing to their superior feasibility in structural design, enhanced energy density, and good environmental sustainability. Among which, lithium terephthalate (LiTPA) has been intensively investigated as a negative electrode material in the past years, in light of its relatively stable discharge plateau at low potentials (ca. 1.0 V vs Li/Li+) and high specific capacity (ca. 290 mAh g–1). However, its cell performances are severely limited owing to the poor quality of the solid-electrolyte-interphase (SEI) layer generated therein. Here, we report the utilization of lithium bis(fluorosulfonyl)imide (LiFSI) as an electrolyte salt for forming a Li-ion permeable SEI layer on the LiTPA electrode and subsequently improving the cyclability and rate performance of the LiTPA-based cells. Our results show that, differing from the reference electrolyte containing the lithium hexafluorophosphate (LiPF6) salt, the electrochemical reductions of the FSI– anions occur prior to the lithiation processes of LiTPA electrode, which is capable of building an inorganic-rich SEI layer containing lithium fluoride (LiF) and lithium sulfate (Li2SO4). Consequently, the lithium metal (Li°)||LiTPA cell shows significantly improved cycling performance than the LiPF6-based reference cell. This work provides useful insight into the reductive processes of the FSI– anions on negative electrodes, which could spur the deployment of highly sustainable and high-energy rechargeable lithium batteries.
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
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Junyu Chen,Xuedong Zhang,Feixiang Wu,Long Xie,Feng Li,Nina Wu,Zixuan Cao,Jinwen Zhao,Yuxuan Zhang,Xin He,Hongxia Gu,Jianyu Huang,Qiao Huang
Integrating conversion-type cathodes (such as iron-based fluorides (IBFs)) into sulfide all-solid-state batteries (ASSBs) significantly enhances energy density but faces challenges including unstable cathode/electrolyte interfaces. To mitigate these issues, a near-amorphous Li1.26Mg0.12Zr1.86(PO4)3 (LMZP) coating technology is developed to protect nano-sized FeF2 (n-FeF2) and micro-sized FeF3 (m-FeF3) cathodes from reacting with the sulfide electrolyte for the first time. The LMZP coating approach offers simplicity, low energy consumption and scalability. With the LMZP-coated cathodes and lithium–indium (Li–In) anode, the ASSBs achieve a discharge capacity of 310 mAh g−1 after 600 cycles and a maximum areal capacity of 2 mAh cm−2 for n-FeF2, and 301 mAh g−1 after 700 cycles with a maximum areal capacity of 3.1 mAh cm−2 for m-FeF3. When using a lithium (Li) metal anode, the ASSBs maintain a discharge capacity of 310 mAh g−1 after 300 cycles for n-FeF2 and 300 mAh g−1 after 600 cycles for m-FeF3, demonstrating excellent cycling stability and capacity retention. Notably, a discharge capacity of 280 mAh g−1 is sustained after 200 cycles for n-FeF2 and 301 mAh g−1 after 180 cycles for m-FeF3, with a reduced stack pressure (10 MPa). These results are unprecedented in IBF-based ASSBs, highlighting the potential of advanced coating strategies to enable scalable, high-performance metal fluoride cathodes in ASSBs with higher energy densities.
研究领域:
储能材料
·
电化学
·
固态电池技术
·
表面涂层工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Yukun Zhang,Fang Ke,Zijing Zheng,Shuai Zhang,Qingyong Duan,Hepeng Lu,Shanxin Xiong,Xiaoqin Wang,Jinhang Li
With the saturation of lithium-ion battery cathode materials research, anode materials have gained increasing attention for their potential advancements. Among them, silicon electrodes, with a theoretical capacity nearly ten times that of graphite, face challenges from significant volume expansion during the charge–discharge cycle, leading to capacity fading and reduced cycle life. Therefore, this study shows a scalable and economical approach. Firstly, silicon anodes were improved through the preparation of silicon/graphite composites via wet ball milling. Subsequently, the phenolic resin was used as a coating and sintered to create a robust carbon layer, which serves to strengthen the composite structure and reduce the volume expansion of silicon. The composite was prepared with 800 mesh flake graphite, silicon-carbon ratio 1:2, ball milling for 5 h and coated with hard carbon (Si/FG@HC-800-125) shows remarkable electrochemical performance, reaching an initial discharge specific capacity of 1024.5 mAh/g and an initial Coulombic efficiency of 86.9%, with a capacity retention rate of 62.92% after 200 cycles. The findings show that the combination of wet ball milling and hard carbon coating effectively enhances the conductivity and structural stability of silicon-based anodes, providing a viable route for large-scale production.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Jiuli Chang,Wenfang Liang,Wenyu Wang,Dapeng Wu,Kai Jiang,Gongke Wang,Fang Xu,Zhiyong Gao
Aqueous alkaline batteries (AABs) represent a prospective category of rechargeable energy devices that can ensure both high energy and power densities. The high capacity negative material is urgently needed to match with the positive electrode and maximize the overall charge storage ability of AAB. Herein, an oxygen vacancies (O v ) enriched Bi 2 O 3 was prepared as efficient negative material for AAB via solvothermal hydrolysis of Bi salt and calcination in inert atmosphere. The resultant Bi 2 O 3 electrode demonstrated high specific capacity ( C s ) of 249 mAh g −1 at 1 A g −1 and ultrahigh rate capability (230 mAh g −1 at 10 A g −1 ) in a wide negative potential range, which was higher than those of other battery materials. When paired with Co, Ni layered double hydroxide (CoNi-LDH) positive electrode, the AAB based on the Bi 2 O 3 negative electrode delivered high energy density ( E cell , 87.1 Wh kg −1 at power density ( P cell ) of 1037 W kg −1 ) and good durability, manifesting the potential of O v enriched Bi 2 O 3 in battery typed charge storage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）