A multi-responsive healable supercapacitor

AbstractSelf-healability is essential for supercapacitors to improve their reliability and lifespan when powering the electronics. However, the lack of a universal healing mechanism leads to low capacitive performance and unsatisfactory intelligence. Here, we demonstrate a multi-responsive healable supercapacitor with integrated configuration assembled from magnetic Fe3O4@Au/polyacrylamide (MFP) hydrogel-based electrodes and electrolyte and Ag nanowire films as current collectors. Beside a high mechanical strength, MFP hydrogel exhibits fast optical and magnetic healing properties arising from distinct photothermal and magneto-thermal triggered interfacial reconstructions. By growing electroactive polypyrrole nanoparticles into MFP framework as electrodes, the assembled supercapacitor exhibits triply-responsive healing performance under optical, electrical and magnetic stimuli. Notably, the device delivers a highest areal capacitance of 1264 mF cm−2 among the reported healable supercapacitors and restores ~ 90% of initial capacitances over ten healing cycles. These prominent performance advantages along with the facile device-assembly method make this emerging supercapacitor highly potential in the next-generation electronics.

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Transparent deoxyribonucleic acid substrate with high mechanical strength for flexible and biocompatible organic resistive memory devices

Chemical Communications ◽

10.1039/c6cc07648c ◽

2016 ◽

Vol 52 (92) ◽

pp. 13463-13466 ◽

Cited By ~ 18

Author(s):

Chien-Chung Shih ◽

Cheng-Yu Chung ◽

Jeun-Yan Lam ◽

Hung-Chin Wu ◽

Yuma Morimitsu ◽

...

Keyword(s):

Mechanical Strength ◽

Deoxyribonucleic Acid ◽

Memory Devices ◽

Resistive Memory ◽

High Mechanical Strength ◽

Acid Substrate ◽

Ag Nanowire

Biocompatible deoxyribonucleic acid (DNA), with high mechanical strength, was employed as the substrate for a Ag nanowire (Ag NW) pattern and then used to fabricate flexible resistor-type memory devices.

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DMV 59

Alloy Digest ◽

10.31399/asm.ad.ni0672 ◽

2009 ◽

Vol 58 (8) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

High Temperature ◽

Mechanical Strength ◽

Physical Properties ◽

Tensile Properties ◽

Heat Treating ◽

High Mechanical Strength ◽

Temperature Performance

Abstract DMV 59 is the material of choice for a wide variety of applications where significant corrosion resistance and high mechanical strength is necessary. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-672. Producer or source: Mannesmann DMV Stainless USA Inc.

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BOFORS 2RM2

Alloy Digest ◽

10.31399/asm.ad.ss0169 ◽

1965 ◽

Vol 14 (5) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Low Temperature ◽

Mechanical Strength ◽

Physical Properties ◽

Tensile Properties ◽

Cast Steel ◽

Heat Treating ◽

High Mechanical Strength ◽

Temperature Performance

Abstract BOFORS 2RM2 is a hardenable stainless cast steel having good weldability, high mechanical strength and improved corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: SS-169. Producer or source: Aktiebolaget Bofors.

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Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing

Sensors ◽

10.3390/s21113574 ◽

2021 ◽

Vol 21 (11) ◽

pp. 3574

Author(s):

Pejman Heidarian ◽

Hossein Yousefi ◽

Akif Kaynak ◽

Mariana Paulino ◽

Saleh Gharaie ◽

...

Keyword(s):

Mechanical Strength ◽

Strain Sensors ◽

Self Healing ◽

Nano Materials ◽

Strain Sensing ◽

Ferric Ions ◽

Research Activity ◽

Adhesion Properties ◽

High Mechanical Strength ◽

The Moment

Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties and high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist of static bonds for mechanical strength and dynamic bonds for SELF performance, presenting a challenge to improve both properties into one single hydrogel. An alternative strategy to successfully incorporate both properties into one system is via the use of stiff or rigid, yet dynamic nano-materials. In this work, a nano-hybrid modifier derived from nano-chitin coated with ferric ions and tannic acid (TA/Fe@ChNFs) is blended into a starch/polyvinyl alcohol/polyacrylic acid (St/PVA/PAA) hydrogel. It is hypothesized that the TA/Fe@ChNFs nanohybrid imparts both mechanical strength and stimuli-free SELF properties to the hydrogel via dynamic catecholato-metal coordination bonds. Additionally, the catechol groups of TA provide mussel-inspired adhesion properties to the hydrogel. Due to its electroconductivity, toughness, stimuli-free SELF properties, and self-adhesiveness, a prototype soft wearable strain sensor is created using this hydrogel and subsequently tested.

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Skin-inspired Nanofibrillated Cellulose-reinforced Hydrogels with High Mechanical Strength, Long-term Antibacterial, and Self‐recovery Ability for Wearable Strain/Pressure Sensors

Carbohydrate Polymers ◽

10.1016/j.carbpol.2021.117894 ◽

2021 ◽

pp. 117894

Author(s):

Shuang Wang ◽

Jun Xiang ◽

Yuegang Sun ◽

Haoliang Wang ◽

Xiaosheng Du ◽

...

Keyword(s):

Mechanical Strength ◽

Pressure Sensors ◽

Nanofibrillated Cellulose ◽

High Mechanical Strength

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High-strength and fibrous capsule–resistant zwitterionic elastomers

Science Advances ◽

10.1126/sciadv.abc5442 ◽

2021 ◽

Vol 7 (1) ◽

pp. eabc5442

Author(s):

Dianyu Dong ◽

Caroline Tsao ◽

Hsiang-Chieh Hung ◽

Fanglian Yao ◽

Chenjue Tang ◽

...

Keyword(s):

Mechanical Properties ◽

Mechanical Strength ◽

High Strength ◽

Design Principles ◽

Fibrous Capsule ◽

High Mechanical Strength ◽

Capsule Formation ◽

Locking Mechanism ◽

Fibrous Capsule Formation

The high mechanical strength and long-term resistance to the fibrous capsule formation are two major challenges for implantable materials. Unfortunately, these two distinct properties do not come together and instead compromise each other. Here, we report a unique class of materials by integrating two weak zwitterionic hydrogels into an elastomer-like high-strength pure zwitterionic hydrogel via a “swelling” and “locking” mechanism. These zwitterionic-elastomeric-networked (ZEN) hydrogels are further shown to efficaciously resist the fibrous capsule formation upon implantation in mice for up to 1 year. Such materials with both high mechanical properties and long-term fibrous capsule resistance have never been achieved before. This work not only demonstrates a class of durable and fibrous capsule–resistant materials but also provides design principles for zwitterionic elastomeric hydrogels.

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Nacre-inspired composite films with high mechanical strength constructed from MXenes and wood-inspired hydrothermal cellulose-based nanofibers for high performance flexible supercapacitors

Nanoscale ◽

10.1039/d0nr08090j ◽

2021 ◽

Vol 13 (5) ◽

pp. 3079-3091

Author(s):

Libo Chang ◽

Zhiyuan Peng ◽

Tong Zhang ◽

Chuying Yu ◽

Wenbin Zhong

Keyword(s):

Mechanical Strength ◽

High Performance ◽

Composite Films ◽

High Mechanical Strength ◽

Flexible Supercapacitor ◽

Flexible Supercapacitors

Wood-inspired HCNF@Lig introduced into MXenes constructing a nacre-like material with high mechanical strength and excellent flexibility used as a flexible supercapacitor.

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