2018
DOI: 10.1021/acsnano.7b09003
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Abstract: Emerging research toward next-generation flexible and wearable electronics has stimulated the efforts to build highly wearable, durable, and deformable energy devices with excellent electrochemical performances. Here, we develop a high-performance, waterproof, tailorable, and stretchable yarn zinc ion battery (ZIB) using double-helix yarn electrodes and a cross-linked polyacrylamide (PAM) electrolyte. Due to the high ionic conductivity of the PAM electrolyte and helix structured electrodes, the yarn ZIB delive… Show more

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Cited by 435 publications
(361 citation statements)
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“…Cu-Zn solid solution on copper mesh was considered to regulate zinc nucleation and PA Mcould effectively suppress the growth of zinc dendrites.The behavior of zinc deposition was investigated at different current densities and the positive effects of the Cu-Zn solid solution and PA Mwere confirmed by the density functional theory (DFT) calculations.T he asprepared zinc anode exhibited adendrite-free morphology in aw ide range of current densities and the cycle stability was dramatically improved benefited from the three-dimensional structure and the activated interface modified by PA M. Figure 1a illustrates the probable mechanism of PA Mi n the electrochemical plating procedure of the zinc anode.Zinc ions are randomly distributed at the solid-liquid interface in the normal electrolyte.A tt he beginning of the plating process,some small zinc deposits are formed on the surface of the copper mesh and the relatively balanced electric field is disturbed. [13] Thei ncreased nucleation sites can be achieved owing to the uniform electric field and charge distribution through the surface modification of PA M. Therefore,z inc tends to grow uniformly and eventually forms as mooth plating surface.F rom the Raman spectra (Figure 1b), the characteristic peaks of pristine PA Misobserved at 839 cm À1 (CÀCs ide-chain vibration), 1106 cm À1 (CÀC skeletal stretching), 1319 cm À1 (C À Hbending), 1441 cm À1 (C À Ns tretching), 1610 cm À1 (N À Hb ending), 1665 cm À1 (C = O stretching), and 2925 cm À1 (C À Hs tretching), respectively, indicating that PA Mi salong-chain polymer with abundant acyl groups. [12] Thef aster deposition rate on the tips can lead to the growth of the zinc dendrites.W hen adopting the PA Melectrolyte,P AM can be first absorbed on the copper surface and zinc ions can transfer to the surface by acyl groups in PA Mc hains.…”
Section: Introductionmentioning
confidence: 99%
“…Cu-Zn solid solution on copper mesh was considered to regulate zinc nucleation and PA Mcould effectively suppress the growth of zinc dendrites.The behavior of zinc deposition was investigated at different current densities and the positive effects of the Cu-Zn solid solution and PA Mwere confirmed by the density functional theory (DFT) calculations.T he asprepared zinc anode exhibited adendrite-free morphology in aw ide range of current densities and the cycle stability was dramatically improved benefited from the three-dimensional structure and the activated interface modified by PA M. Figure 1a illustrates the probable mechanism of PA Mi n the electrochemical plating procedure of the zinc anode.Zinc ions are randomly distributed at the solid-liquid interface in the normal electrolyte.A tt he beginning of the plating process,some small zinc deposits are formed on the surface of the copper mesh and the relatively balanced electric field is disturbed. [13] Thei ncreased nucleation sites can be achieved owing to the uniform electric field and charge distribution through the surface modification of PA M. Therefore,z inc tends to grow uniformly and eventually forms as mooth plating surface.F rom the Raman spectra (Figure 1b), the characteristic peaks of pristine PA Misobserved at 839 cm À1 (CÀCs ide-chain vibration), 1106 cm À1 (CÀC skeletal stretching), 1319 cm À1 (C À Hbending), 1441 cm À1 (C À Ns tretching), 1610 cm À1 (N À Hb ending), 1665 cm À1 (C = O stretching), and 2925 cm À1 (C À Hs tretching), respectively, indicating that PA Mi salong-chain polymer with abundant acyl groups. [12] Thef aster deposition rate on the tips can lead to the growth of the zinc dendrites.W hen adopting the PA Melectrolyte,P AM can be first absorbed on the copper surface and zinc ions can transfer to the surface by acyl groups in PA Mc hains.…”
Section: Introductionmentioning
confidence: 99%
“…[11,12] On the other hand, most super-stretchable hydrogels that are considered as an essential component of a stretchable energy storage device will lose their stretchability under such strong alkaline environment. [24][25][26] Therefore, the absence of alkaline-tolerant hydrogel electrolyte with high stretchability and excellent ion transport capability is the key challenge to fabricate super-stretchable zinc-air battery and enhance its weavability. [2,[13][14][15][16][17] However, the PVA-based electrolyte possesses very poor stretchability (even worse when alkaline electrolyte infiltrated), and meanwhile it shows limited ion-transport capability, resulting in poorly electrochemical performance and mechanical flexibility.…”
mentioning
confidence: 99%
“…Currently, a zincair battery is typically assembled using polyvinyl alcohol (PVA)-based electrolyte. [24][25][26] Therefore, the absence of alkaline-tolerant hydrogel electrolyte with high stretchability and excellent ion transport capability is the key challenge to fabricate super-stretchable zinc-air battery and enhance its weavability. [18][19][20][21] Although other hydrogels, such as polyacrylic acid (PAA), polyacrylamide (PAM), show strong water-retention capability and high stretchability, [22,23] unfortunately, they will lose their mechanical robustness, especially the stretchability, when they are incorporated with strong alkaline electrolyte.…”
mentioning
confidence: 99%
“…Toward their real applications of wearable electronics, the integration of energyharvesting technologies from ambient environment delivers a promise to address such issues, which may pave the way for further construction of multifunctional (e.g., photodetecting and sensing) microintegration systems. [85] Copyright 2018, American Chemical Society. Electron.…”
Section: Integration Systemmentioning
confidence: 99%
“…Zinc-ion battery α-MnO 2 /CNT and Zn/CNT yarns [85] Twisted Initial discharge capacity of 302.1 mAh g −1 at 60 mA g −1…”
Section: Little Influence At Varying Bending Statesmentioning
confidence: 99%