Built‐In Electric Field Induced Uniform Li Deposition via Construction of CoP/Co2P Heterojunction in 3D Carbon Nanofiber Networks DOI Open Access

Zhi-Min Hao,

Dapeng Liu,

Xintao Zuo

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Abstract Uncontrollable dendrite growth significantly hinders the application of Li metal anodes. To improve uniformity deposition, it is essential to develop an inorganic‐rich solid‐electrolyte interphase (SEI) and lithiophilic host surface. However, there exists a big challenge in simultaneously optimizing SEI anode Herein, cobalt phosphide/dicobalt phosphide (CoP/Co 2 P) pp‐heterojunction modified carbon nanofiber networks (CNF‐CoP x ) are successfully prepared as 3D host, which can form built‐in electric field (BIEF) accelerate conversion reaction kinetics CoP into 3 P, spontaneously derive new BIEF induced by Co/Co P Schottky heterojunction facilitates electron transfer during deposition process. Consequently, CNF‐CoP @Li symmetric cell exhibits impressive long‐term cycling stability, maintaining low polarization for up 600 h at current density mA cm −2 . Additionally, @Li||LiFePO 4 full delivers high‐capacity retention 89.5% over 500 cycles 1 C.

Language: Английский

Realizing interfacial coupled electron/ion transport through reducing the interfacial oxygen density of carbon skeletons for high-performance lithium metal anodes DOI

Y.W. Ye,

Yan Zhou, Huan Ye

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

4
Dendrite‐Free Li Metal Anode Achieved by Bi‐Functional Host of NH2‐Modified UiO‐66 on Zn‐Embedded Porous Carbon Nanofibers DOI Open Access
Chen Chen, Xue Yang, Weidong Zhou

et al.

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

Published: Feb. 11, 2025

Abstract 3D carbonaceous host is considered as an ideal candidate for stabilizing Li metal anode (LMA) owing to its lightweight and high electronic conductivity. Nonetheless, the surface chemistries of carbon materials at different locations should be regulated modify lithiophilicity ion diffusion. In this study, a metal–organic frameworks‐engaged strategy design core–shell porous with mixed ionic/electronic conducting feature developed. To specific, Zn‐embedded nanofibers (Zn/CF) are designed cores using ZIF‐8 particles precursors pore‐forming agents. Meanwhile, NH 2 ‐functionalized UiO‐66 (NH ‐UiO‐66) nanoparticles in‐situ grown on above fibers promoted ions migration. As result, composite LMA bi‐functional Zn/CF@NH ‐UiO‐66 demonstrates enhanced stability rate performance. Particularly, obtained asymmetric cell delivers stable operation up 500 cycles 1 mA cm −2 . Moreover, corresponding Li‐Zn/CF@NH ‐UiO‐66//LiFePO 4 full shows high‐capacity retention 93.4% over 1700 C (1 ≈169 g −1 ).

Language: Английский

Citations

0
Advanced Hierarchical Lithiophilic Scaffold Design to Facilitate Synchronous Deposition for Dendrite‐Free Lithium Metal Batteries DOI
Jinlong Jiang, Didi Wang, Huan Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 30, 2024

Abstract Localized deposition behavior tends to induce the growth of lithium dendrite and hinder full utilization storage space, significantly impeding practical application 3D conductive hosts. Here, a novel synchronous mode is proposed for first time through hierarchical structure design Li host. The top‐down gradually enhanced lithiophilicity conductivity scaffold provide sufficient driving force + migrate downward, promoting within entire space Notably, has been theoretically experimentally validated finite element simulation in situ optical microscopy, respectively. meticulously designed strategy not only maximizes but also prevents formation dendrites under high current rate. Consequently, symmetric Li//Li cell exhibits long‐term cycling lifespan over 3700 h with low overpotential 15.6 mV, together Coulombic efficiency as 99.5% 300 cycles at 3 mA cm −2 . paired LiFePO 4 cathode demonstrates 1000 capacity retention rate 91.6%. opens up new paradigm construction hosts dendrite‐free metal anode.

Language: Английский

Citations

2
Synergetic effects of S, N co-doping and surface concave-pores rich in lotus-leaf-like carbon nanosheets enabled threefold lithium storage mechanisms DOI
Yu Tian, Mai Li,

Junxuan Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154559 - 154559

Published: Aug. 5, 2024

Language: Английский

Citations

1
Achieving Dendrite‐Free Lithium Metal Batteries by Constructing a Dense Lithiophilic Cu1.8Se/CuO Heterojunction Tip DOI Open Access

Yunfei Yang,

Kun Wang, Xuehui Gao

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 9, 2024

Lithium (Li) metal batteries (LMBs) have garnered widespread attention due to their high specific capacity. However, the growth of lithium dendrite severely limits practical applications. Herein, a novel strategy is proposed regulate overall potential strength and ions (Li

Language: Английский

Citations

1
In Situ Generated Li2S–Li3N Dual Component Protective Layers Enable High Stability for High-Temperature Li Metal Batteries DOI
Chenyang Li, Li Su, Qinglei Wang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Li metal has been considered as a promising anode for next-generation high-energy-density batteries. However, the uncontrollable dendrite growth, infinite volume change, and unstable solid electrolyte interphase (SEI) layer cause serious safety issues poor cycling performances, inhibiting its practical application. Herein, N-doped CoS2 needle-like nanoarrays are decorated on carbon cloth. The with lithiophilic nature can decrease nucleation barriers induce uniform deposition. Furthermore, during prelithiation process, in situ reaction between formed stable Li2S Li3N dual-component protective layers, which efficiently suppresses growth stabilizes electrolyte-electrode interface. As result, N-CoS2@CC electrode shows an excellent rate performance long lifespan of 800 h under 5 mA cm–2/1 cm–2 low overpotential (12 mV). When paired LiFePO4 (LFP) cathode, obtained N-CoS2@CC@Li||LFP cell exhibits outstanding electrochemical performances at high temperature 60 °C well mass loading 10 mg cm–2. This work provides rational approach to constructing 3D host SEI layers toward

Language: Английский

Citations

0
Synergetic Effects of S, N Co-Doping and Surface Concave-Pores Rich in Lotus-Leaf-Like Carbon Nanosheets Enabled Threefold Lithium Storage Mechanisms DOI
Yu Tian, Mai Li,

Junxuan Zhang

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0
Built‐In Electric Field Induced Uniform Li Deposition via Construction of CoP/Co2P Heterojunction in 3D Carbon Nanofiber Networks DOI Open Access

Zhi-Min Hao,

Dapeng Liu,

Xintao Zuo

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Abstract Uncontrollable dendrite growth significantly hinders the application of Li metal anodes. To improve uniformity deposition, it is essential to develop an inorganic‐rich solid‐electrolyte interphase (SEI) and lithiophilic host surface. However, there exists a big challenge in simultaneously optimizing SEI anode Herein, cobalt phosphide/dicobalt phosphide (CoP/Co 2 P) pp‐heterojunction modified carbon nanofiber networks (CNF‐CoP x ) are successfully prepared as 3D host, which can form built‐in electric field (BIEF) accelerate conversion reaction kinetics CoP into 3 P, spontaneously derive new BIEF induced by Co/Co P Schottky heterojunction facilitates electron transfer during deposition process. Consequently, CNF‐CoP @Li symmetric cell exhibits impressive long‐term cycling stability, maintaining low polarization for up 600 h at current density mA cm −2 . Additionally, @Li||LiFePO 4 full delivers high‐capacity retention 89.5% over 500 cycles 1 C.

Language: Английский

Citations

0