Supercapacitors Outperform Conventional Batteries [Energy and Security]

Sengupta, Aditya Sankar; Satpathy, Sambit; Mohanty, Saraju P.; Baral, Debasis; Bhattacharyya, Budhaditya

doi:10.1109/mce.2018.2835958

Cited by 31 publications

(13 citation statements)

References 8 publications

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“…Compared with traditional capacitors and batteries, supercapacitors have many irreplaceable advantages such as shorter charge and discharge time, broader temperature range for device operation and longer cycle capability [2][3][4]. They are complementary to traditional electrochemical batteries and have a broad range of applications [5]. The electrode material is one of the key components that affect the performance of a supercapacitor [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Preparation of mulberry-like RuO2 electrode material for supercapacitors

Pang

Wang

2020

Rare Met.

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As a newly emerging excellent energy storage device, supercapacitors have been widely studied due to their unique advantages. Electrode material is one of the key components that determine the performance of a supercapacitor. Among the various electrode materials of supercapacitors, RuO 2 has attracted great attention in the scientific community due to its high theoretical energy storage capability and excellent stability. However, most RuO 2 materials suffer the problem of low specific surface area, causing a much lower actual capacitance value compared to the theoretical performance of the material. In this work, a mulberry-like RuO 2 electrode material with large specific surface area (159.4 m 2 Ág -1 ) was successfully synthesized by a facial hydrothermal method. The electrochemical characterization has shown that the RuO 2 possesses a high specific capacitance of 400 FÁg -1 at a current density of 0.2 AÁg -1 and good capacitance retention rate of 84.7% after 6000 charge/discharge cycles under a current density of 10 AÁg -1 . The energy densities and power densities of the RuO 2 -AC supercapacitor vary from 25.0 to 11.7 WhÁkg -1 and 160 to 10,560 WÁkg -1 at current density ranging from 0.2 to 10.0 AÁg -1 , respectively.

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Section: Introductionmentioning

confidence: 99%

Preparation of mulberry-like RuO2 electrode material for supercapacitors

Pang

Wang

2020

Rare Met.

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“…The supercapacitor is used as a battery replacement in a number of applications due to the high efficiency (>90%), high capacity, and wide operating temperature range 101 . The cost of supercapacitors has dropped significantly, and the capacity has increased at the same time as a result of advances in nanomaterial technology and commercial manufacturing.…”

Section: Components Of Fchevsmentioning

confidence: 99%

Optimization and cutting‐edge design of fuel‐cell hybrid electric vehicles

Luo

et al. 2021

Int J Energy Res

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Summary The transportation sector consumes a large amount of fossil fuels consequently exacerbating the global environmental and energy crisis. Fuel‐cell hybrid electric vehicles (FCHEVs) are promising alternatives in the continuous transition to clean energy. This article summarizes the recent advances pertaining to the optimization and cutting‐edge design of fuel‐cell hybrid electric vehicles, especially the fuel cell + battery hybrid topology, and discusses current technological bottlenecks hindering the commercialization of FCHEVs. The development of HEVs, markets, environmental and economic benefits, components, topologies, energy management strategies, degradation mechanisms, and safety standards of FCHEVs are reviewed. Proton exchange membrane fuel cells constitute the mainstream and most mature fuel cell technology for automobile applications. Battery hybridization is currently favored among the available FCHEV topological designs to improve the dynamic response and recover the braking energy. Energy management strategies encompassing logic rule‐based simple methods, intelligent control methods, global optimization strategies, and local optimization strategies are described, and issues and challenges encountering FCHEVs are discussed. In addition to promoting the construction of hydrogen supply facilities, future efforts are expected to focus on solving problems such as the high cost, durability of fuel cells, cold start, lifetime of batteries, security and comfort, system optimization, energy management systems, integration, and diagnosis of faults. This review serves as a reference and guide for future technological development and commercialization of FCHEVs. Highlights Advances of the optimization and cutting‐edge design of FCHEVs are reviewed. Battery hybridization is currently favored among the available topological designs. Benefits, components, topologies, and energy management strategies are described. Markets, degradation mechanisms, and safety standards of FCHEVs are introduced. Technological bottlenecks hindering the commercialization of FCHEVs are discussed.

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“…• The users are assumed to only have rechargeable batteries with low energy storage and high self discharge rate, e.g., super-capacitors [12]. Thus, the harvested energy in a frame is used for IT within that frame, not stored for later use.…”

Section: System Model and Assumptionsmentioning

confidence: 99%

Minimum Length Scheduling for Multi-Cell Wireless Powered Communication Networks

Salik

Onalan

Coleri

2020

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications

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We consider a wireless powered, harvestthen-transmit communication network, which consists of multiple, single antenna, energy and information access points (APs) and multiple, single antenna users with energy harvesting capabilities and rechargeable batteries, and allows simultaneous information transmission. We formulate the joint power control and scheduling problem with the objective of minimizing the total schedule length, subject to the constraints on the minimum amount of data to be sent by the users to the APs, and the maximum transmit power for the information transmission. This problem is a nonlinear and non-convex, mixed integer programming problem for which there is no known polynomial time algorithm. The proposed heuristic algorithm is based on, first, finding the solution for a fixed energy harvesting time and then searching for the optimal energy harvesting time that minimizes the total schedule length. For the former, a scheduling problem is formulated as an integer programming problem, which we solve with Branch and Price based methods upon solving the power control problem separately. Simulation results demonstrate that the proposed algorithm outperforms previously proposed time minimization algorithms that do not consider simultaneous transmission scenarios up to 3.5% for larger AP power, 25.4% for tighter maximum transmit power limit, and 6.5% for greater number of users per AP.

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Supercapacitors Outperform Conventional Batteries [Energy and Security]

Cited by 31 publications

References 8 publications

Preparation of mulberry-like RuO2 electrode material for supercapacitors

Preparation of mulberry-like RuO2 electrode material for supercapacitors

Optimization and cutting‐edge design of fuel‐cell hybrid electric vehicles

Minimum Length Scheduling for Multi-Cell Wireless Powered Communication Networks

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