3D printing-assisted gyroidal graphite foam for advanced supercapacitors

Du, Junjie; Cao, Qinghe; Tang, Xiaowan; Xu, Xi; Long, Xu; Ding, Jun; Guan, Cao; Huang, Wei

doi:10.1016/j.cej.2020.127885

Cited by 40 publications

(29 citation statements)

References 61 publications

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“…The polymer system used in this photocurable resin used thereafter is similar to the previous work. [63] Take the preparation process of nickel-based resin as an example. In an amber-colored bottle, 58 g of NiSO 4 powder, 5 mL of Variquat CC 42 NS, and 30 mL of photocurable resin (consisting of E-HDDA and E-TMPTA at a ratio of 3:22 with 2 wt.% TPO) were mixed and then stirred for 1-3 h at room temperature then ground using a planetary ball mill to make the NiSO 4 powder in the resin finer for printing.…”

Section: Methodsmentioning

confidence: 99%

Stereolithography of 3D Sustainable Metal Electrodes towards High‐Performance Nickel Iron Battery

Gao

et al. 2022

Adv Funct Materials

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The present-day ubiquity of smart devices used under extreme conditions demands robust and more sustainable energy storage. Therefore, lightweight electrodes with both excellent electrochemical and mechanical performance to meet these needs are of great importance. Moreover, the recycling of current energy storage devices poses significant environmental concerns, a particularly daunting prospect given the increasing waste volume of metalbased electrodes. To that end, these challenges of performance and sustainability are addressed by leveraging accessible digital light processing (DLP) technology and tailored post-process heat treatment to fabricate a metalbased 3D substrate with ultrahigh precision and hierarchical porosity. Here, a 4-mm-thickness metal-based electrode with NiCo 2 S 4 loading of 18.38 mg cm -2 achieves a high areal capacity of 7.327 mA h cm -2 at 44.85 mA cm -2 , providing a promising way to fabricate high-performance thick electrodes. Most importantly, these electrodes can be fabricated from recyclable metal salt feedstock. The geometric freedom offered by 3D printing supplemented by finite element analyses allows for optimized complex structures to be fabricated. Through rational design realized by 3D printing, a desirable compromise between building density, mechanical properties, electrochemical performances, and environment-friendly processing cycle can be arrived upon.

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Section: Methodsmentioning

confidence: 99%

Stereolithography of 3D Sustainable Metal Electrodes towards High‐Performance Nickel Iron Battery

Gao

et al. 2022

Adv Funct Materials

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“…In addition to normal active carbon materials, graphene is the most common material used in symmetric supercapacitors [134]. As a novel 2D material with excellent properties such as decent intrinsic electric conductivity in-plane, high theoretical SSA of 2630 m 2 g −1 , outstanding mechanical strength and chemical stability, graphene and its derivatives have been widely applied in many ESSs [134][135][136]. The intrinsic capacitance of monolayer graphene can reach ~ 21 μF cm −2 according to its theoretical SSA [137].…”

Section: Graphene-based Electrodementioning

confidence: 99%

A Better Zn-Ion Storage Device: Recent Progress for Zn-Ion Hybrid Supercapacitors

et al. 2022

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As a new generation of Zn-ion storage systems, Zn-ion hybrid supercapacitors (ZHSCs) garner tremendous interests recently from researchers due to the perfect integration of batteries and supercapacitors. ZHSCs have excellent integration of high energy density and power density, which seamlessly bridges the gap between batteries and supercapacitors, becoming one of the most viable future options for large-scale equipment and portable electronic devices. However, the currently reported two configurations of ZHSCs and corresponding energy storage mechanisms still lack systematic analyses. Herein, this review will be prudently organized from the perspectives of design strategies, electrode configurations, energy storage mechanisms, recent advances in electrode materials, electrolyte behaviors and further applications (micro or flexible devices) of ZHSCs. The synthesis processes and electrochemical properties of well-designed Zn anodes, capacitor-type electrodes and novel Zn-ion battery-type cathodes are comprehensively discussed. Finally, a brief summary and outlook for the further development of ZHSCs are presented as well. This review will provide timely access for researchers to the recent works regarding ZHSCs.

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“…Compared with 2D substrates, the 3D porous structure provides more active sites for the deposition of pseudocapacitive materials . 3D printing has been the research frontier of non-traditional advanced manufacturing technology in recent years. − Due to its high efficiency, rapid prototyping, and functional customization in arbitrarily complex structural design, 3D printing has shown great potential in the construction of 3D hierarchical porous structures. − Although there has been some success in 3D-printed porous graphene aerogels, , there are still few reports on 3D-printed compressible supercapacitors with both high compression properties and excellent electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Ultralight, Superelastic Reduced Graphene Oxide/Manganese Dioxide Foam for High-Performance Compressible Supercapacitors

Cao

Ling

Chen

et al. 2022

Ind. Eng. Chem. Res.

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The rapid development of wearable electronic devices has put forward higher requirements for compressible energy storage devices. Three-dimensional (3D) hierarchical porous structures have been verified to be an excellent force-bearing structure, which is beneficial to disperse strain and stress, effectively improving stiffness and resilience. However, the development of a 3D hierarchical electrode with both excellent compressibility–resilience and a stable power output under deformation conditions is still facing significant challenges. Here, a 3D-printed ultralight and superelastic reduced graphene oxide-manganese dioxide foam (3DP-rGO-MnO2) is proposed to construct high-performance compressible supercapacitors via a simple in situ chemical reaction with a uniform loading of MnO2 on the printed rGO foam substrate. The rGO foam with a 3D hierarchical porous structure formed by 3D-printed regular macroscopic pores and freeze-drying-incorporated cellular microscopic pores can not only provide sufficient stress relief space for large mechanical deformation and ensure fast ion/electron transfer kinetics but also provide abundant active sites for MnO2 loading, effectively solving the issues of poor conductivity and volume expansion of MnO2 during charging and discharging. As a result, the constructed symmetrical supercapacitor exhibits excellent and long cycling stability (90.4% after 20,000 cycles) and a competitive energy/power density (18.4 W h/kg, 9000 W/kg). Meanwhile, the compressible devices can deliver a stable capacitance output under different compressive deformation from 0 to 90% and notably retain 93.9% capacity even under an ultimate compressive strain of 90%. This work provides a promising avenue for designing high-performance compressible energy storage devices.

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3D printing-assisted gyroidal graphite foam for advanced supercapacitors

Cited by 40 publications

References 61 publications

Stereolithography of 3D Sustainable Metal Electrodes towards High‐Performance Nickel Iron Battery

Stereolithography of 3D Sustainable Metal Electrodes towards High‐Performance Nickel Iron Battery

A Better Zn-Ion Storage Device: Recent Progress for Zn-Ion Hybrid Supercapacitors

3D-Printed Ultralight, Superelastic Reduced Graphene Oxide/Manganese Dioxide Foam for High-Performance Compressible Supercapacitors

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