Advanced 3D Current Collectors for Lithium‐Based Batteries

Jin, Song; Jiang, Yu; Ji, Hengxing; Yu, Yan

doi:10.1002/adma.201802014

Cited by 258 publications

(177 citation statements)

References 102 publications

(129 reference statements)

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“…However, these efforts cannot accommodate the infinite volume changes of Li metal during lithium stripping/plating, which can damage the contact interfaces between the electrolytes and Li anodes for continuous charge/discharge cycling. Porous and conductive scaffolds are expected to simultaneously suppress the Li dendrite growth and minimize the volume changes of Li metal electrodes . Such host materials with a large specific surface area not only lower the local effective current density to form a uniform Li‐ion flux but also provide an ample space to accommodate Li.…”

mentioning

confidence: 99%

Lithiophilic 3D Nanoporous Nitrogen‐Doped Graphene for Dendrite‐Free and Ultrahigh‐Rate Lithium‐Metal Anodes

et al. 2018

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discharge and charge. These problems cause early cell death, poor Coulombic efficiency (CE), rapid cycling capacity decay, and catastrophic thermal runaway. [9][10][11][12] To overcome the above thorny issues, extensive endeavors have been revived and a number of strategies have been proposed and practiced. For example, strengthening the solid electrolyte interphase (SEI) films by engineering liquid electrolytes with functional additives (LiNO 3 , Cs + , LiF, etc.) or employing solid electrolytes to prevent the Li dendrites. [13][14][15][16][17][18][19] However, these efforts cannot accommodate the infinite volume changes of Li metal during lithium stripping/plating, which can damage the contact interfaces between the electrolytes and Li anodes for continuous charge/discharge cycling. Porous and conductive scaffolds are expected to simultaneously suppress the Li dendrite growth and minimize the volume changes of Li metal electrodes. [20][21][22][23][24][25][26] Such host materials with a large specific surface area not only lower the local effective current density to form a uniform Li-ion flux but also provide an ample space to accommodate Li. Multifarious porous metal foams, such as 3D porous Cu foils and Cu-Ni core-shell nanowire networks, have behaved as effective hosts of Li. [23,27,28] However, the high mass density of these porous metals dramatically reduces the overall energy density of the composite electrodes, and dissipates the advantages of Li-metal anodes in specific capacity and energy density. In this respect, it is highly desirable to develop lightweight, flexible, conductive, and porous host materials with a lower interfacial energy with lithium.Lightweight porous carbon materials, including carbon nanotube and graphene exhibit distinct advantages over porous metals. [10,[29][30][31][32][33] The appealing characteristics of low mass density, excellent electrical conductivity, and chemical stability render them as promising host materials of Li anodes. [34][35][36][37][38][39][40][41] However, these carbon skeletons are usually lithium-phobic and require Li seed growth or additional lithiophilic surface modification to load Li. [42][43][44][45][46][47] Additionally, conventional porous carbon hosts with relatively large pore size (>10 µm) cannot efficiently dissipate large current densities due to limited surface areas, deteriorating the high rate performance of Limetal anodes. [29,31,36] Technically, it is difficult to efficiently pack 1D carbon nanotube and 2D graphene sheets into a 3D porous structure that can simultaneously achieve high porosity, largeThe key bottlenecks hindering the practical implementations of lithiummetal anodes in high-energy-density rechargeable batteries are the uncontrolled dendrite growth and infinite volume changes during charging and discharging, which lead to short lifespan and catastrophic safety hazards. In principle, these problems can be mitigated or even solved by loading lithium into a high-surface-area, conductive, and lithiophilic porous scaffold. However, ...

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confidence: 99%

Lithiophilic 3D Nanoporous Nitrogen‐Doped Graphene for Dendrite‐Free and Ultrahigh‐Rate Lithium‐Metal Anodes

et al. 2018

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“…The morphology and microstructure of flexible carbon substrate could directly affect the distribution state of active materials as well as the electron/ion transport channels, and finally the electrochemical properties of electrode . As investigated by scanning electron microscopy (SEM) in Figure a–b and Figure S1 in Supporting information, flexible substrate SCC show crosslinked network structure composed of carbon fibers, similar with flexible substrate CCC, and both with diameters of 5∼10 μm and ∼9 μm as well as thickness of 280 μm and 491 μm, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…As power sources, flexible energy storage devices are fundamentally important for the development of various flexible electronics. Finding suitable flexible substrates with high quality is one of the major challenges, as it acts as the essential flexible skeletons and plays a decisive effect on the functions of flexible energy storage devices . However, different from extensive and sufficient studies of various active materials in flexible electrodes, the characteristics and electrochemistry of flexible substrate lack systematical investigation and understanding, while the flexible energy storage devices would definitely fail with a poor flexible substrate.…”

Section: Introductionmentioning

confidence: 99%

Cotton Cloth‐Induced Flexible Hierarchical Carbon Film for Sodium‐Ion Batteries

et al. 2020

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Flexible substrates play a decisive effect on the functions of flexible energy storage devices. However, systematical investigation and understanding of often-used flexible carbon-based substrates is lack. In this work, a reliable cotton cloth induced flexible hierarchical carbon film is facilely obtained. The synthesized-carbonized cotton cloth (SCC) owns distinctive carbon nature with perfect order level and defects, unique porous microstructure, and crosslinked-network. The SCC exhibits favorable flexibility, fast kinetics, high structural and electro-chemical durability with high performance (239.4 mAh g À 1 and 155.2 mAh g À 1 at 0.01 A g À 1 in the ether-and ester-based electrolyte in sodium-ion batteries, respectively), superior to commonly-used commercial carbon cloth and graphene film. In addition, the predominant surface-controlled reaction mechanism, effective solid electrolyte interphase and favorable compatible features with different electrolytes are also intensively studied.

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“…Metal‐based materials, such as silver, gold, lithium, and copper, can be used as a stretchable current collector and/or an active material in batteries . Compared with carbon‐based materials, metal‐based materials typically have higher electrical conductivity (10 7 S m −1 at 20 °C), which enables electrons to be effectively transferred to them as active materials, resulting in an increase in the charge/discharge rate . For this reason, metal‐based materials (e. g., copper, aluminum, and stainless steel) have typically been used as current collectors.…”

Section: Materials For Stretchable Batteriesmentioning

confidence: 99%

“…This structure of current collector guaranteed high energy density and outstanding rate performance due to its smaller thickness and high electrical conductivity. [33] Furthermore, Tong et al proposed three-dimensional nickel nitride (Ni 3 N) nanosheets grown on a 3D carbon substrate as a free-standing electrode for flexible LIBs. The cell based on the Ni 3 N electrode exhibited an excellent battery performance and reasonable flexibility.…”

Section: Metal-based Materialsmentioning

confidence: 99%

Recent Progress in Stretchable Batteries for Wearable Electronics

Song

Yoo

Song

et al. 2019

Batteries & Supercaps

111

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With the rapidly approaching implementation of wearable electronic devices such as implantable devices, stretchable sensors, and healthcare devices, stretchable power sources have aroused worldwide attention as a key component in this emerging field. Among stretchable power sources, batteries, which store electrical energy through redox reactions during charge/discharge processes, are an attractive candidate because of their high energy density, high output voltage, and long‐term stability. In recent years, extensive efforts have been devoted to developing new materials and innovative structural designs for stretchable batteries. This review covers the latest advances in stretchable batteries, focusing on advanced stretchable materials and their design strategies. First, we provide a detailed overview of the materials aspects of components in a stretchable battery, including electrode materials, solid‐state electrolytes, and stretchable separator membranes. Second, we provide an overview on various structural engineering strategies to impart stretchability to batteries (i. e., wavy/buckling structures, island‐bridge structures, and origami/kirigami structures). Third, we summarize recently reported developments in stretchable batteries based on various chemistries, including Li‐based batteries, multivalent‐based batteries, and metal‐air batteries. Finally, we discuss the future perspectives and remaining challenges toward the practical application of stretchable batteries with reliable mechanical robustness and stable electrochemical performance under a physical strain.

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Advanced 3D Current Collectors for Lithium‐Based Batteries

Cited by 258 publications

References 102 publications

Lithiophilic 3D Nanoporous Nitrogen‐Doped Graphene for Dendrite‐Free and Ultrahigh‐Rate Lithium‐Metal Anodes

Lithiophilic 3D Nanoporous Nitrogen‐Doped Graphene for Dendrite‐Free and Ultrahigh‐Rate Lithium‐Metal Anodes

Cotton Cloth‐Induced Flexible Hierarchical Carbon Film for Sodium‐Ion Batteries

Recent Progress in Stretchable Batteries for Wearable Electronics

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