Stabilizing Lithium Metal Anodes by Fiber Clustering DOI

Caihong Wu,

Piao Qing, Haifeng Huang

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Lithium metal anodes generally suffer from uncontrolled dendrite growth and large volume change, while traditional skeletons such as Li13In3 Li22Sn5 are too heavy discontinuous to offer highly efficient structural supportability for composite Li anodes. In this work, lightweight stable fiber-clustered skeletons, which composed of LiB fibers jointed Li22Si5 nanoparticles, can be obtained by smelting SiB6 powder ingots. addition serving both ionic electronic conductors anodes, the reduced volumetric fluctuation offering uniform, heterogeneous, continuous architectures suppressing lithium dendrites with low nucleation overpotential diffusion energy barrier. As a result, Li–SiB6|Li–SiB6 symmetrical cells achieve an ultralong lifespan over 2000 h cycling at 1 mA cm–2 cm–2. Eventually, Li–SiB6|LiFePO4 full exhibit long-term cyclability 400 cycles high-capacity retention 94.5% 2 C, Li–SiB6|LiCoO2 pouch impressive 85% capacity after 350 cycles. This work develops new strategy strengthen stability fibrous minimize changes dendrite-free

Language: Английский

Bilayer Artificial Solid Electrolyte Interphase with 75 GPa Young's Modulus Enable High Energy Density Lithium Metal Pouch Cells DOI Open Access

Yingzhi Yu,

Kecheng Long, Shaozhen Huang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract The artificial solid electrolyte interphase (SEI) layer is capable of protecting lithium anodes and preventing side reactions with electrolytes. development inorganic/organic composite hybrid SEI can be considered as an efficient strategy to combine the merits high ion conductivity, mechanical modulus, flexibility. However, it still poses a great challenge solve agglomeration problem in these maintain strong interaction between metal. Herein, bilayer ultra‐thin (P‐FEM@Li) derivative from reactive fluorinated copolymer (P‐FEM) prepared shows ultra‐large Young's modulus (> 75 GPa). robust inorganic LiF‐rich provides superior ionic conductivity large while flexible organic polymer regulates ions transport compatibility. P‐FEM induced demonstrate stable cycles for more than 4400 h at 1 mA cm −2 average coulombic efficiency (CE) Li||P‐FEM@Cu 99.78% after 100 cycles. Moreover, P‐FEM@Li||NCM811 punch cell 428 Wh kg −1 exhibits high‐capacity retention 73% 175 This work new way prepare practical anodes.

Language: Английский

Citations

3
Double three-dimensional structures enabled spherical lithium deposition for advanced lithium metal anode DOI Creative Commons
Tao Wei,

Xingtong Guo,

Yanyan Zhou

et al.

Next Energy, Journal Year: 2025, Volume and Issue: 7, P. 100237 - 100237

Published: Jan. 15, 2025

Language: Английский

Citations

3
LiMn2O4 Nanoparticles In Situ Embedded in Carbon Networks for Lithium Extraction from Brine via Hybrid Capacitive Deionization DOI

Ya-Yun Xu,

Weiping Wu,

Qiuying Yi

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Highly selective and efficient extraction of lithium from brine is considered a promising strategy to alleviate the imbalance between supply demand resources. However, it still challenging for ions (Li+) recovery brine. In this work, LiMn2O4 nanoparticles embedded in situ carbon networks (LMO-C) derived metal–organic frameworks by incomplete calcination have been developed via hybrid capacitive deionization (HCDI) process. The adsorption capacity obtained LMO-C Li+ 3.5 mmol g–1, while separation factor reaches 24.5 at high Mg:Li ratio 20. insertion Li atoms lattice were visually confirmed. addition, found that synergistic effect LMO retained surface LMO-C, above effectively promotes migration sustainability HCDI This work believed provide guidance design synthesis high-performance materials practical

Language: Английский

Citations

1
Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

1
Scalable Production of Thin and Durable Practical Li Metal Anode for High‐Energy‐Density Batteries DOI Creative Commons
Shuixin Xia, Chenrui Li, Jodie A. Yuwono

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(48)

Published: Aug. 30, 2024

Abstract Utilization of thin Li metal is the ultimate pathway to achieving practical high‐energy‐density batteries (LMBs), but its implementation has been significantly impeded by formidable challenges poor thinning processability, severe interphase instability and notorious dendritic growth. Here we report a (10–40 μm) Li/Mo/Li 2 Se with concurrently modulated mechanical properties, achieved via scalable rolling process. The in situ generated Mo not only enhance strength enabling fabrication metal, also promote homogeneous electrodeposition. Significantly, demonstrates ultrahigh‐rate performance (15 mA cm −2 ) ultralong‐lifespan cycling sustainability (2700 cycles) exceptional anti‐pulverization capability. Li|LiFePO 4 cells show substantially prolonged cyclability over 1200 cycles an ultralow decay rate ~0.01 % per cycle. Moreover, Li|LiNi 0.8 Co 0.1 Mn O pouch deliver enhanced stability even under extremely harsh conditions low negative‐to‐positive‐capacity (N/P) ratio ~1.2 lean electrolyte ~0.95 g Ah −1 , showing energy density 329.2 Wh kg . This work sheds light on facile for production durable anode toward reliable practicability.

Language: Английский

Citations

7
An ultra-thin rich-lithium alloy with in-site 3D skeleton for lithium metal batteries and anode prelithitaion DOI
Hui Xu,

W.L. Hou,

Can Zhang

et al.

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130349 - 130349

Published: Jan. 1, 2025

Language: Английский

Citations

0
Intelligent Strategy of Lithium Metal Reconstruction through Generation of a Protective Layer and Regulating Lithium Deposition DOI
Xiaoyi Wang, Cheng Liu, Shaojie Zhang

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Lithium metal has been considered as the most promising anode for next-generation batteries. However, its high reactivity with electrolyte and growth of lithium dendrites hamper application metal-based Herein, we demonstrate that polyphosphides (LixPPs) can be dissolved in diethyl carbonate (DEC) used a reconditioner generating protective layer regulating deposition Li anode. Since LixPPs are reduced prior to lithiation process, their product uniform tight at surface metal. The situ-formed protection superhigh ionic conductivity, thickness easily controlled by tuning amount LixPPs, thus facilitating interface stability. Li-Li symmetry batteries show stable cycling performance 2 mA cm-2 1 mAh over 5000 h. Interestingly, it exhibits self-healing function on scratched

Language: Английский

Citations

0
Surface-Finish Induced Textured Electrodeposition on 20 μm Li-metal Anode DOI
Yuhang Hu, Yong Li, Huaiyu Hou

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104160 - 104160

Published: March 1, 2025

Language: Английский

Citations

0
Porous TiP2O7/nitrogen-doped carbon composite with tailored crystal orientation as diffusion-controlled high-rate anode for lithium-ion batteries DOI
Wenfang Cui, Mei Ma,

Yongmei Sun

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137469 - 137469

Published: March 1, 2025

Language: Английский

Citations

0
Versatile Molecular Engineering of In Situ Cross-Linked Multifunctional Electrolytes for Long-Lifetime and Safe Semisolid Lithium Metal Batteries DOI
Kai Chen, Anjun Hu, Guorui Zhu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

The practical application of semisolid lithium metal batteries is impeded by inadequate ionic conductivity, suboptimal oxidation/reduction stability, and safety concerns the electrolyte. Herein, a versatile molecular engineering strategy proposed to construct robust polymer framework for electrolytes, which creates highly compatible cross-linked networks in situ gelation concentrated succinonitrile-based plastic crystal electrolytes multifunctional nitrogen- fluorine-rich monomers. This allows electrolyte promote rapid Li-ion transpsort through weak coordination with segments. Meanwhile, strong interactions between matrix succinonitrile enhance their mutual solubility, reduce crystallinity succinonitrile, establish fast ion-conductive pathways. resultant induces formation LiF/Li3N-rich solid interphases achieves uniform deposition behaviors. Moreover, it mitigates fire risks cothermally decomposing produce fire-extinguishing gases (CO2 NH3) leveraging nonflammability succinonitrile. Significant improvements electrochemical performance have been observed Li symmetric, Li||LiFePO4, Li||LiNi0.8Co0.1Mn0.1O2 cells both at room temperature high (60 °C). As demonstration model, this has successfully applied thermal stability pouch cells, offering promising solution under extreme conditions.

Language: Английский

Citations

0