Triboelectric Nanogenerator Driven Self-Charging and Self-Healing Flexible Asymmetric Supercapacitor Power Cell for Direct Power Generation

A previously unknown gas-solid interacted power generation is developed using triboelectric effect. We designed an adhesive, gas-tight, and self-healing supramolecular polysiloxane-dimethylglyoxime–based polyurethane (PDPU) porous elastomer based on segmented oxime-carbamate-urea. It is an intrinsically triboelectric negative material with trapped air within closed voids, exhibiting ultrahigh static surface potential and excellent compressibility. This porous PDPU generates electricity from interactions between the trapped air and the elastomeric matrix under periodical compression. The positively charged trapped air (or other gas) dominates the tribo-electrification with PDPU, inducing electron transfer from gas to the solid polymer for electricity generation. The self-healable elastomer renders gas-solid interacted triboelectric nanogenerator, GS-TENG, with high stretchability (~1200%). The inherently adhesive surface enables adherance to other substrates, allowing mechanical energy harvesting from deformations such as bending, twisting, and stretching. GS-TENG promises a freestanding wearable functional tactile skin for self-powered sensing of touch pressure, human motions, and Parkinsonian gait.

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Performance Characteristics of A Simulated Hybrid Solar- Photovoltaic-Thermoelectric System for Renewable and Direct Power Generation Applications

Journal of Solar Energy Research Updates ◽

10.15377/2410-2199.2015.02.02.3 ◽

2016 ◽

Vol 2 (2) ◽

pp. 31-39

Author(s):

Basel Ismail ◽

◽

Justin Bujold

Keyword(s):

Power Generation ◽

Performance Characteristics ◽

Solar Photovoltaic ◽

Direct Power ◽

Simulated Hybrid

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A Self‐Healing Triboelectric Nanogenerator Based on Feather for Sensing and Energy Harvesting

Advanced Functional Materials ◽

10.1002/adfm.202100039 ◽

2021 ◽

pp. 2100039

Author(s):

Jiaqing Zhu ◽

Yu Cheng ◽

Saifei Hao ◽

Zhong Lin Wang ◽

Ning Wang ◽

...

Keyword(s):

Energy Harvesting ◽

Triboelectric Nanogenerator ◽

Self Healing

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An Optimized Flutter-Driven Triboelectric Nanogenerator with a Low Cut-In Wind Speed

Micromachines ◽

10.3390/mi12040366 ◽

2021 ◽

Vol 12 (4) ◽

pp. 366

Author(s):

Yang Xia ◽

Yun Tian ◽

Lanbin Zhang ◽

Zhihao Ma ◽

Huliang Dai ◽

...

Keyword(s):

Power Generation ◽

Wind Speed ◽

Energy Harvesting ◽

Wind Energy ◽

Output Power ◽

Open Circuit Voltage ◽

Open Circuit ◽

Triboelectric Nanogenerator ◽

Vibration Behavior ◽

Air Speed

We present an optimized flutter-driven triboelectric nanogenerator (TENG) for wind energy harvesting. The vibration and power generation characteristics of this TENG are investigated in detail, and a low cut-in wind speed of 3.4 m/s is achieved. It is found that the air speed, the thickness and length of the membrane, and the distance between the electrode plates mainly determine the PTFE membrane’s vibration behavior and the performance of TENG. With the optimized value of the thickness and length of the membrane and the distance of the electrode plates, the peak open-circuit voltage and output power of TENG reach 297 V and 0.46 mW at a wind speed of 10 m/s. The energy generated by TENG can directly light up dozens of LEDs and keep a digital watch running continuously by charging a capacitor of 100 μF at a wind speed of 8 m/s.

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Electrokinetic Power Generation by Forward Osmosis

ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer ◽

10.1115/mnhmt2012-75008 ◽

2012 ◽

Author(s):

Kar Cherng Hon ◽

Chun Yang ◽

Seow Chay Low

Keyword(s):

Power Generation ◽

Salinity Gradient ◽

Forward Osmosis ◽

Streaming Potential ◽

Nacl Solution ◽

Direct Power ◽

Concentration Difference ◽

Permeable Membrane ◽

Flat Sheet ◽

Novel Method

In this paper, an innovative direct power generation technique from salinity gradient is proposed and demonstrated. The basis of this novel method encompasses forward osmosis (FO) and electrokinetic (EK) principles. Tapping the concentration difference between seawater and river fresh water, forward osmosis (FO) is utilized to allow for spontaneously transporting water across a semi-permeable membrane. The flow of water is then directed towards array of microchannels in the form of porous medium where power is produced from the electrokinetical streaming potential. Experimentally, NaCl solution and DI water were used to model as seawater and fresh river water, respectively. Both glass and polymer based porous media and commercial flat sheet FO membranes were employed herein. Results show power density could reach the order of 101W/m2. Having features of ease of fabrication, simple configuration and no mechanical moving parts, this method provides a feasible mean to harvest enormous energy from salinity gradient. Thus the proposed technique could contribute greatly to renewable energy and towards sustainable future.

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