Nanoscale Horizons, Год журнала: 2024, Номер 9(12), С. 2198 - 2233
Опубликована: Янв. 1, 2024
Recently, PyCOFs have aroused great interest that pyrene unit could enhance the interlayer π–π interaction and promote separation migration of carriers, significantly improving crystallinity photoelectrical properties.
Язык: Английский
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(28)
Опубликована: Май 7, 2024
Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high-energy-density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid-state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.
Язык: Английский
Процитировано
41
ACS Nano, Год журнала: 2024, Номер 18(27), С. 17439 - 17468
Опубликована: Июнь 27, 2024
Lithium metal batteries (LMBs), with high energy densities, are strong contenders for the next generation of storage systems. Nevertheless, unregulated growth lithium dendrites and unstable solid electrolyte interphase (SEI) significantly hamper their cycling efficiency raise serious safety concerns, rendering LMBs unfeasible real-world implementation. Covalent organic frameworks (COFs) derivatives have emerged as multifunctional materials significant potential addressing inherent problems anode electrode metal. This stems from abundant metal-affine functional groups, internal channels, widely tunable architecture. The original COFs, derivatives, COF-based composites can effectively guide uniform deposition ions by enhancing conductivity, transport efficiency, mechanical strength, thereby mitigating issue dendrite growth. review provides a comprehensive analysis derived employed challenges posed in LMB. Additionally, we present prospects recommendations design engineering architectures that render feasible practical applications.
Язык: Английский
Процитировано
37
Journal of the American Chemical Society, Год журнала: 2024, Номер 146(29), С. 19680 - 19685
Опубликована: Июль 9, 2024
The pore shapes of two-dimensional covalent organic frameworks (2D COFs) significantly limit their practical applications in separation and catalysis. Although various 2D COFs with polygonal pores have been well developed, constructing pentagonal remains an enormous challenge. In this work, we developed one kind the
Язык: Английский
Процитировано
20
Nano-Micro Letters, Год журнала: 2024, Номер 16(1)
Опубликована: Июль 24, 2024
Distinct from "rocking-chair" lithium-ion batteries (LIBs), the unique anionic intercalation chemistry on cathode side of dual-ion (DIBs) endows them with intrinsic advantages low cost, high voltage, and eco-friendly, which is attracting widespread attention, expected to achieve next generation large-scale energy storage applications. Although electrochemical reactions anode DIBs are similar that LIBs, in fact, match rapid insertion kinetics anions consider compatibility electrolyte system also serves as an active material, materials play a very important role, there urgent demand for rational structural design performance optimization. A review summarization previous studies will facilitate exploration optimization future. Here, we summarize development process working mechanism exhaustively categorize latest research their applications different battery systems. Moreover, design, reaction briefly discussed. Finally, fundamental challenges, potential strategies perspectives put forward. It hoped this could shed some light researchers explore more superior advanced systems further promote DIBs.
Язык: Английский
Процитировано
20
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 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.
Язык: Английский
Процитировано
5
Progress in Materials Science, Год журнала: 2025, Номер unknown, С. 101426 - 101426
Опубликована: Янв. 1, 2025
Процитировано
3
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 5, 2024
Lithium (Li) metal batteries with remarkable energy densities are restrained by short lifetime and low Coulombic efficiency (CE), resulting from the accumulative Li dendrites dead during cycling. Here, we prepared a new three-dimensional (3D) covalent organic framework (COF) dense lithiophilic sites (heteoatom weight contents of 32.32 wt %) as an anodic protective layer batteries. The 3D COF was synthesized using [6+4] synthesis strategy inducing flexible 6-connected cyclotriphosphazene derivative aldehyde 4-connected porphyrin-based tetraphenylamines. Both phosphazene porphyrin rings in served electron-rich sites, enhancing homogeneous
Язык: Английский
Процитировано
11
Angewandte Chemie, Год журнала: 2024, Номер 136(28)
Опубликована: Май 7, 2024
Abstract Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high‐energy‐density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid‐state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.
Язык: Английский
Процитировано
10
Journal of Energy Storage, Год журнала: 2024, Номер 93, С. 112374 - 112374
Опубликована: Июнь 4, 2024
Язык: Английский
Процитировано
10
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Фев. 8, 2025
The diversity of covalent organic frameworks (COFs) is continuously expanding, providing various materials with tailor-made structures and properties. However, the development crystalline three-dimensional (3D) COFs new topologies an essential but arduous challenge. In this study, we first developed one kind 3D lil topological structure, which were assembled by D4h- C2h-symmetric building blocks. determined in a space group Imma, each D4h-symmetric unit connected four units, forming noninterpenetrated network. densely packed copper phthalocyanine stable polyimide linkage render these as polymeric material high dielectric constant low loss at frequencies (>1 kHz). Significantly, was 63, constitutes record value among phthalocyanine-based polymers. Therefore, study not only provides important guidance for design lil-net also supplies promising application high-energy-density pulsed capacitors.
Язык: Английский
Процитировано
1