ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Rui Liu,Huanzhong Zeng,Lei Zhao,Yuanyou Peng,Meimei Yuan,Yumeng Wang,Gaoyang Li,Shengqiang Nie,Fen Ran
Hard carbon anodes exhibit superior storage capacity and rate performance due to their special structure, when applied in various alkali metal ion batteries. The ability to store Li+ and Na+ is related to the proportion of pseudographite domains and the distribution of the pore structure. This work uses a one-step carbonization strategy to generate uniformly sized Fe2N nanoparticles to be embedded into hard carbon, the former could catalyze the microcrystalline structure of the latter. The as-prepared hard carbon exhibits up to 54% occupation of microcrystalline domains, while its specific surface area (867.1 m2 g–1) and the maximum probable aperture (6.220 Å) are larger than that of pure hard carbon (519.2 m2 g–1 and 4.680 Å). The composites show a capacity of 581.8 mAh g–1 in LIBs and 334.1 mAh g–1 in SIBs at 0.05 A g–1. It can stably cycle for 2000 times with capacity retention of 97.92% in LIBs and cycles for 1500 cycles (98.64%) in SIBs at 2.0 A g–1. This work provides a simple preparation strategy and enriches the regulation mechanism of microcrystal structure for hard carbon anodes, which would be references for the regulation of “fast-charging” carbon-based anode materials.
研究领域:
材料科学
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纳米技术
·
电化学
·
储能
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2025
·Vol. 15
·期 34
·2502226
·
IF 26
Mengting Guo,Changping Wang,Yize Niu,Mingyue Ruan,Dong Yang,Fei Wang,Haonan Wang,Nankai Wang,Ying Jiang,Tianyi Li,Yan He,Qiang Li
The high-voltage spinel LiNi 0.5 Mn 1.5 O 4 (LNMO) is a promising cathode material for lithium-ion batteries due to its high energy and power densities, excellent thermal stability, low cost, and environmental benignity. However, the presence of Mn 3+ induces Jahn─Teller (J─T) distortion, leading to Mn─O bond elongation, lattice stress, and degradation of both structural and electrochemical stability during cycling. To address this,a bond-length engineering strategy is proposed by co-doping Fe at the Mn 16d sites and Sb at the vacant 16c positions to suppress the J─T effect and stabilize the crystal structure. Electron paramagnetic resonance (EPR), in situ X-ray diffraction (XRD), and density functional theory (DFT) calculations confirm that the Mn─O bond regulation strategy effectively mitigates MnO 6 octahedral distortion, reduces phase transitions, and enhances structural robustness. Moreover, Sb incorporation expands the lattice, facilitating Li + diffusion. As a result, the optimized FeSb-LNMO delivers remarkable electrochemical performance, retaining 98% of its initial capacity after 200 cycles at 1C, and achieving 85.6% capacity retention over 1000 cycles at 5C. This work introduces a novel bond-length engineering approach via multi-site doping to overcome degradation in high-voltage LNMO, enabling ultra-fast charging and long-term cycling stability.
研究领域:
材料科学
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电化学
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储能
·
电池技术
·
固态化学
✓ 已验证
产品关联
DOI
高影响因子
Science Bulletin
·
2024
·
IF 18.8
Weihao Xia,Fengjun Ji,Yunzhuo Liu,Zhen Han,Kaikai Li,Jingyu Lu,Wei Zhai,Deping Li,Lijie Ci
Alloying-type anode materials are considered promising candidates for next-generation alkali-ion batteries. However, they face significant challenges owing to severe volume variations and sluggish kinetics, which hinder their practical applications. To address these issues, we propose a universal synthetic strategy, which can realize the facile synthesis of various alloying-type anode materials composed of a porous carbon matrix with uniformly embedded nanoparticles (Sb, Bi, or Sn). Besides, we construct the interactions among active materials, electrolyte compositions, and the resulting interface chemistries. This understanding assists in establishing balanced kinetics and stability. As a result, the fabricated battery cells based on the above strategy demonstrate high reversible capacity (515.6 mAh g −1 ), long cycle life (200 cycles), and excellent high-rate capability (at 5.0 C). Additionally, it shows improved thermal stability at 45 and 60 °C. Moreover, our alloying-type anodes exhibit significant potential for constructing a 450 Wh kg −1 battery system. This proposed strategy could boost the development of alloying-type anode materials, aligning with the future demands for low-cost, high stability, high safety, wide-temperature, and fast-charging battery systems.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-9
·
IF 16.6
Meng Jiashen,Yao Xuhui,Hong Xufeng,Zhu Lujun,Xiao Zhitong,Jia Yongfeng,Liu Fang,Song Huimin,Zhao Yunlong,Pang Quanquan
Conventional solid-to-solid conversion-type cathodes in batteries suffer from poor diffusion/reaction kinetics, large volume changes and aggressive structural degradation, particularly for rechargeable aluminium batteries (RABs). Here we report a class of high-capacity redox couples featuring a solution-to-solid conversion chemistry with well-manipulated solubility as cathodes—uniquely allowed by using molten salt electrolytes—that enable fast-charging and long-lived RABs. As a proof-of-concept, we demonstrate a highly reversible redox couple—the highly soluble InCl and the sparingly soluble InCl 3 —that exhibits a high capacity of about 327 mAh g −1 with negligible cell overpotential of only 35 mV at 1 C rate and 150 °C. The cells show almost no capacity fade over 500 cycles at a 20 C charging rate and can sustain 100 mAh g −1 at 50 C. The fast oxidation kinetics of the solution phase upon initiating the charge enables the cell with ultrafast charging capability, whereas the structure self-healing via re-forming the solution phase at the end of discharge endows the long-term cycling stability. This solution-to-solid mechanism will unlock more multivalent battery cathodes that are attractive in cost but plagued by poor reaction kinetics and short cycle life.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2024
·Vol. 32
·期 1
·191-200
·
IF 5.6
Chen Chen,Xue Hongyu,Hu Qilin,Wang Mengfan,Shang Pan,Liu Ziyan,Peng Tao,Zhang Deyang,Luo Yongsong
Transition metal sulfides have great potential as anode materials for sodium-ion batteries (SIBs) due to their high theoretical specific capacities. However, the inferior intrinsic conductivity and large volume variation during sodiation–desodiation processes seriously affect its high-rate and long-cycle performance, unbeneficial for the application as fast-charging and long-cycling SIBs anode. Herein, the three-dimensional porous Cu 1.81 S/nitrogen-doped carbon frameworks (Cu 1.81 S/NC) are synthesized by the simple and facile sol–gel and annealing processes, which can accommodate the volumetric expansion of Cu 1.81 S nanoparticles and accelerate the transmission of ions and electrons during Na + insertion/extraction processes, exhibiting the excellent rate capability (250.6 mAh·g −1 at 20.0 A·g −1 ) and outstanding cycling stability (70% capacity retention for 6000 cycles at 10.0 A·g −1 ) for SIBs. Moreover, the Na-ion full cells coupled with Na 3 V 2 (PO 4 ) 3 /C cathode also demonstrate the satisfactory reversible specific capacity of 330.5 mAh·g −1 at 5.0 A·g −1 and long-cycle performance with the 86.9% capacity retention at 2.0 A·g −1 after 750 cycles. This work proposes a promising way for the conversion-based metal sulfides for the applications as fast-charging sodium-ion battery anode.
研究领域:
材料科学
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电化学
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储能
·
纳米技术
·
电池技术
✓ 已验证
DOI
高影响因子
Nature Energy
·
2025
·
IF 60.1
Zhao Chang-Xin,Li Zheng,Chen Bin,Chen Fu,Wang Chunsheng
Fast charging of high-energy batteries is critical for transportation electrification but remains challenging because the rapid rise in cell overpotential easily exceeds electrolytes’ fixed electrochemical stability window. Here we design a self-adaptive electrolyte with a dynamically expanding electrochemical stability window that increases in real time during charging, outpacing the rise in overpotential as the charging current intensifies. The self-adaptive electrolyte is a single-phase solution of salt and complementary oxidation- and reduction-resistant solvents at the cloud point composition but can undergo solvent separation to dynamically redistribute solvent components during charging. The oxidation-resistant solvents concentrate at the positive electrode and reduction-resistant solvents accumulate at the negative electrode, broadening the electrolyte stability window in real time during charging. Proof-of-concept experiments validate the versatility of this design in both aqueous zinc-metal and non-aqueous lithium-metal batteries, achieving high Coulombic efficiencies of negative electrodes and enhanced oxidative stability for positive electrodes.
研究领域:
储能技术
·
电化学
·
电池技术
·
材料科学
·
交通电气化
✓ 已验证
产品关联
DOI
高影响因子
Science Bulletin
·
2024
·
IF 18.8
Zhihong Bi,Anping Zhang,Gongrui Wang,Cong Dong,Pratteek Das,Xiaoyu Shi,Zhong-Shuai Wu
High-voltage and fast-charging LiCoO 2 (LCO) is key to high-energy/power-density Li-ion batteries. However, unstable surface structure and unfavorable electronic/ionic conductivity severely hinder its high-voltage fast-charging cyclability. Here, we construct a Li/Na-B-Mg-Si-O-F-rich mixed ion/electron interface network on the 4.65 V LCO electrode to enhance its rate capability and long-term cycling stability. Specifically, the resulting artificial hybrid conductive network enhances the reversible conversion of Co 3+/4+ /O 2−/ n − redox by the interfacial ion–electron cooperation and suppresses interface side reactions, inducing an ultrathin yet compact cathode electrolyte interphase. Simultaneously, the derived near-surface Na + /Mg 2+ /Si 4+ -pillared local intercalation structure greatly promotes the Li + diffusion around the 4.55 V phase transition and stabilizes the cathode interface. Finally, excellent 3 C (1 C = 274 mA g −1 ) fast charging performance is demonstrated with 73.8% capacity retention over 1000 cycles. Our findings shed new insights to the fundamental mechanism of interfacial ion/electron synergy in stabilizing and enhancing fast-charging cathode materials.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Yuhui Weng,Xingyu Sun,Siying Li,Zhuoying Wu,Ziwei Chen,Yongqun Ma,Zefan Zheng,Feng Lin,Ming Zhang,Kejun Zhang,Min Ling,Keli Yang,Chengdu Liang,Jun Chen
High-capacity silicon (Si)-based anodes have been recognized as particularly promising candidates for high-energy-density lithium-ion batteries (LIBs). Rational design and tailoring of an artificial interface for Si anodes can effectively mitigate volume expansion, suppress detrimental side reactions, and enhance lithium-ion (Li+) diffusion kinetics—three critical factors widely acknowledged as fundamental prerequisites for enabling long-term cycling stability and fast-charging capabilities. Therefore, we introduced an organic/inorganic composite interface design strategy combining high elasticity and ion-conductive properties. Lithium metasilicate (LMS) not only functions as an effective protective layer and Li+ conductor but also inhibits lithium hexafluorophosphate (LiPF6) hydrolysis to suppress the generation of corrosive hydrofluoric acid (HF). When integrated with carboxyl-rich polyacrylic acid (PAA), the nanocomposite coating layer demonstrates high elasticity to accommodate volume expansion, establishes continuous Li+ diffusion pathways, and promotes the formation of a robust lithium fluoride (LiF)-rich artificial solid-electrolyte interphase (SEI). Consequently, the as-developed Si@PL-10 electrode demonstrates significantly enhanced cycling performance (2297 mAh g−1 after 200 cycles at 1 A g−1) and high-rate capability (1854 mAh g−1 at 6 A g−1). This work provides valuable insights for designing scalable multifunctional coatings for high-performance Si anodes.
研究领域:
储能技术
·
材料科学
·
电化学
·
纳米技术
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2022
·
IF 13.599
Xiaobo Ding,Huiying Huang,Qianhui Huang,Benrui Hu,Xiaokang Li,Xiangdong Ma,Xunhui Xiong
Heteroatoms doping has been regarded as a promising route to modulate the physiochemical properties of electrode materials, in which the doping sites greatly influence the electrochemical performances. However, very few reports focus on enhancing the lithium storage performances of Nb 2 O 5 via heteroatoms doping, yet the effect of different doping sites remains unclear. Herein, nitrogen doping has been proposed to improve the fast-charging capability of orthorhombic Nb 2 O 5 (T-Nb 2 O 5 ) via a urea-assisted annealing process . Experimental data and theoretical calculation demonstrate that the N doping sites in T-Nb 2 O 5 can be tuned by the heating rate , in which substitutional N can increase the spacing of the Li + transport layer as well as reduce the band gap, while interstitial N can provide an electron-rich environment for Li + transport layer and then reduce the Li + diffusion barrier . Arising from the synergistic effect of N doping at different sites, the N-doped T-Nb 2 O 5 without carbon coating delivers impressive rate performance (104.6 mA h g −1 at 25 C) as well as enhanced cycle stability with a retention of 70.5% over 1000 cycles at 5 C. In addition, the assembled lithium ion capacitor exhibits a high energy density of 46.6 Wh kg −1 even at high power density of 8.4 kW kg −1 .
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Wellars Utetiwabo,Lei Zhou,Muhammad Khurram Tufail,Xintao Zuo,Le Yang,Jinfeng Zeng,Ruiwen Shao,Wen Yang
Defect engineering through induction of dislocations is an efficient strategy to design and develop an electrode material with enhanced electrochemical performance in energy storage technology. Yet, synthesis, comprehension, identification, and effect of dislocation in electrode materials for lithium-ion batteries (LIBs) are still elusive. Herein, we propose an ethanol-thermal method mediated with surfactant-template and subsequent annealing under air atmosphere to induce dislocation into titanium niobium oxide (Ti 2 Nb 14 O 39 ), resultant nanoscale-dislocated-Ti 2 Nb 14 O 39 (Nano- dl -TNO). High-resolution transmission electron microscope (HRTEM), fast Fourier transform (FFT), and Geometrical phase analysis (GPA) denote that the high dislocation density engraved with stacking faults forms into the Ti 2 Nb 14 O 39 lattice. The presence of dislocation could offer an additional active site for lithium-ion storage and tune the electrical and ionic properties of the Ti 2 Nb 14 O 39 . The resultant Nano- dl -TNO delivers superior rate capability, high specific capacity, better cycling stability, and making Ti 2 Nb 14 O 39 a suitable candidate among fast-charging anode materials for lithium-ion batteries. Moreover, In-situ High-resolution transmission electron microscope (HRTEM) and Geometrical phase analysis (GPA) evinces that the removal of the dislocated area in the Nano- dl -TNO leads to the contraction of the lattice, alleviation of the total volume expansion, causing the symmetrization and preserves structural stability. The present findings and designed approach reveal the rose-colored perspective of dislocation engineering into mixed transition metal oxides as next-generation anodes for advanced lithium-ion batteries and all-solid-state lithium-ion batteries.
研究领域:
材料科学
·
储能技术
·
纳米技术
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）