Search for dissertations about: "electrochemical capacitors"

Showing result 1 - 5 of 11 swedish dissertations containing the words electrochemical capacitors.

2. 1. Electrochemical Capacitors for Miniaturized Self-powered Systems

   Author : Qi Li; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Electrolyte materials; Electrochemical capacitors; AC line filters; Energy storage; Miniaturized self-powered systems; Electrode materials;

   Abstract : Miniaturized self-powered systems with harvest-store-use architectures have been recognized as a key enabler to the internet-of-things (IoT), and further the internet-of-everything (IoE), 5G communication and tactile internet. Electrochemical capacitors (ECs), also known as supercapacitors, are promoted to be the energy storage component in such systems, because of their advantages such as an almost limitless cycle life that is ideal for the vision of “fit-and-forget” maintenance-free networks. READ MORE

4. 2. Electrochemical capacitors for miniaturized self-powered systems: challenges and solutions

   Author : Qi Li; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bipolar; encapsulation; carbon; supercapacitors; miniaturized self-powered systems; electrochemical capacitors; redox electrolytes; energy storage; a.c. line filters;

   Abstract : Electrochemical capacitors (ECs), also known as supercapacitors, are recognized as a key technology that will enable miniaturized self-powered systems, which will constitute the hardware base nodes of the internet of things (IoT), the internet of everything (IoE) and the tactile internet. Systems employing ECs can be designed to be maintenance-free thanks to the ultra-long cycling stability of ECs. READ MORE

5. 3. Polyelectrolyte-Based Capacitors and Transistors

   Author : Oscar Larsson; Xavier Crispin; Janelle Leger; Linköpings universitet; []
   Keywords : Organic electronics; Polarization; Polyelectrolyte; Transistor; Polymer; Sensor; Capacitor; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : Polymers are very attractive materials that can be tailored for specific needs and functionalities. Based on their chemical structure, they can for instance be made electrically insulating or semiconducting with specific mechanical properties. READ MORE

6. 4. Electrolyte evaluation and engineering for the performance enhancement of electrochemical capacitors

   Author : Mohammad Mazharul Haque; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal charging; supercapacitors; Energy storage; ionic liquid; self-discharge; thermoionic system; redox-electrolyte; activated carbon; leakage current; liquid crystal;

   Abstract : As a consequence of a fast-paced technological evolution along with the acknowledgment of utilizing clean and renewable energy resources over fossil fuels, the importance of energy storage devices is widely recognized. The electrochemical capacitor (EC), commonly known as a supercapacitor or ultracapacitor, is an energy storage device that is already being used in portable consumer electronics, electrification of transportation, and grid-level applications. READ MORE

7. 5. On-chip electrochemical capacitors and piezoelectric energy harvesters for self-powering sensor nodes

   Author : Agin Vyas; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy storage; 2DOF; sensor node; Energy harvesting; piezoelectric energy harvesters; graphene oxide; spin coating; MEMS; Microsupercapacitors;

   Abstract : On-chip sensing and communications in the Internet of things platform have benefited from the miniaturization of faster and low power complementary-metal-oxide semiconductor (CMOS) microelectronics. Micro-electromechanical systems technology (MEMS) and development of novel nanomaterials have further improved the performance of sensors and transducers while also demonstrating reduction in size and power consumption. READ MORE