Stand‐Alone Intrinsically Stretchable Electronic Device Platform Powered by Stretchable Rechargeable Battery

Song, Woo‐Jin; Kong, Minsik; Cho, Sung-Hwan; Lee, Sangyeop; Kwon, Jung‐Dae; Son, Hye Bin; Song, Jun Hyuk; Lee, Dong-Gue; Song, Gyujin; Lee, Sang Young; Jung, Sungjune; Park, Soo‐Jin; Jeong, Unyong

doi:10.1002/adfm.202003608

Cited by 38 publications

(44 citation statements)

References 64 publications

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“…properties, [18,167] or weakened for easy delamination by adjusting the adhesion between the two films. [170]…”

Section: Design Of Mesoscale Interfacesmentioning

confidence: 99%

“…Fabrication of stretchable devices using all the device components intrinsically stretchable has been explored a lot. [18,167,168] In this approach, all the stretchable multilayers should have strong interfaces and the moduli of the layers should be comparable. interlocking structure at the interface between the Au layer and the elastic substrate.…”

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

“…Song et al developed an intrinsically stretchable electronic device platform by integrating a stretchable film battery and a stretchable printed circuit board (SPCB) (Figure 14a). [167] The stretchable battery was fabricated as a substrate, and the SPCB was prepared by nozzle printing on the surface of the battery substrate, producing a stand-alone electronic platform which was stably operated at = 100%. The stretchable battery components (current collector, anode, cathode, and separator) and the SPCB circuit lines were prepared in the composites of thermoplastic block copolymer elastomers (SBS and polystyene-blockpolyisoprene-block-polystyrene (SIS)).…”

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

“…Reproduced with permission. [167] Copyright 2020, Wiley-VCH. b) Intrinsically stretchable polymer transistor array composed of intrinsically stretchable materials (dielectric, semiconductor, electrodes) prepared by inkjet printing.…”

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

“…communication, power source, external flexible printed circuit board, and so on. [167,171] The metal pads can be directly mounted on the stretchable circuit line, or can be connected through wires. Vertical connection between the circuit lines is also required in the multilayered device structures.…”

Section: Design Of Macroscale Interfacesmentioning

confidence: 99%

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Interface Design for Stretchable Electronic Devices

2021

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Stretchable electronics has emerged over the past decade and is now expected to bring form factor-free innovation in the next-generation electronic devices. Stretchable devices have evolved with the synthesis of new soft materials and new device architectures that require significant deformability while maintaining the high device performance of the conventional rigid devices. As the mismatch in the mechanical stiffness between materials, layers, and device units is the major challenge for stretchable electronics, interface control in varying scales determines the device characteristics and the level of stretchability. This article reviews the recent advances in interface control for stretchable electronic devices. It summarizes the design principles and covers the representative approaches for solving the technological issues related to interfaces at different scales: i) nano-and microscale interfaces between materials, ii) mesoscale interfaces between layers or microstructures, and iii) macroscale interfaces between unit devices, substrates, or electrical connections. The last section discusses the current issues and future challenges of the interfaces for stretchable devices.

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“…properties, [18,167] or weakened for easy delamination by adjusting the adhesion between the two films. [170]…”

Section: Design Of Mesoscale Interfacesmentioning

confidence: 99%

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

Section: Integration Of Multiple Layers With Strong Interfacementioning

confidence: 99%

Section: Design Of Macroscale Interfacesmentioning

confidence: 99%

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Interface Design for Stretchable Electronic Devices

2021

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A Shape‐Variable, Low‐Temperature Liquid Metal–Conductive Polymer Aqueous Secondary Battery

Liu

Xiong

et al. 2021

Adv Funct Materials

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A shape-variable aqueous secondary battery operating at low temperature is developed using Ga 68 In 22 Sn 10 (wt%) as a liquid metal anode and a conductive polymer (polyaniline (PANI)) cathode. In the GaInSn alloy anode, Ga is the active component, while Sn and In increase the acid resistance and decrease the eutectic point to -19 °C. This enables the use of strongly acidic aqueous electrolytes (here, pH 0.9), thereby improving the activity and stability of the PANI cathode. Consequently, the battery exhibits excellent electrochemical performance and mechanical stability. The GaInSn-PANI battery operates via a hybrid mechanism of Ga 3+ stripping/plating and Cl − insertion/extraction and delivers a high reversible capacity of over 223.9 mAh g −1 and an 80.3% retention rate at 0.2 A g −1 after 500 cycles, as well as outstanding power and energy densities of 4300 mW g −1 and 98.7 mWh g −1 , respectively. Because of the liquid anode, the battery without packaging can be deformed with a small force of several millinewtons without any capacity loss. Moreover, at approximately −5 °C, the battery delivers a capacity of 67.8 mAh g −1 at 0.2 A g −1 with 100% elasticity. Thus, the battery is promising as a deformable energy device at low temperatures and in demanding environments.

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3D Printed Stretchable Liquid Gallium Battery

Tavakoli

Lopes

Sanati

et al. 2022

Adv Funct Materials

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Despite the rapid progress on soft and stretchable batteries, current fabrication techniques involve manual disposition and stencil/screen printing. Here, for the first time, a 3D-printed Ag-Ga battery is introduced through subsequent printing of four sinter-free composites: a stretchable Liquid Metal (LM) EGaIn-Ag-Styrene-isoprene block copolymers (SIS), and Carbon-SIS current collectors; Ag 2 O-SIS cathode; and a novel Ga-C-SIS anode. Being sinter-free results in faster printing, and compatibility with heat-sensitive substrates. Although the Ga-C-SIS is solid-like and nonsmearing after printing, it creates a liquid interface after contacting with the electrolyte. This results in a self-feeding and self-aggregation mechanism that brings more gallium to the surface and delays the formation of the dead surface. The recordbreaking areal capacity of ≈19.4 mAh cm −2 , along with excellent stretchability (>130% Max. strain), makes the Ag-Ga battery an excellent alternative to Ag-Zn batteries. Surprisingly, digital printing results in 3x higher areal capacity compared to stencil printing, due to greater gallium exposure at the surface. The desired voltage and current output can be customized by printing several battery cells and interconnect them in series/parallel. Also, printing of sensors, electrodes, batteries, and interconnects on a biomonitoring e-textile for simultaneous monitoring of electrocardiography, body temperature, and respiration is demonstrated.

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Stand‐Alone Intrinsically Stretchable Electronic Device Platform Powered by Stretchable Rechargeable Battery

Cited by 38 publications

References 64 publications

Interface Design for Stretchable Electronic Devices

Interface Design for Stretchable Electronic Devices

A Shape‐Variable, Low‐Temperature Liquid Metal–Conductive Polymer Aqueous Secondary Battery

3D Printed Stretchable Liquid Gallium Battery

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