Results 61 to 70 of about 531 (174)

Product Positioning and Incentives to Innovate

Journal of Economics &Management Strategy, Volume 35, Issue 3, Page 475-483, Fall 2026.
ABSTRACT This paper shows that product positioning affects the incentives to invest in process innovation. The result is found using a model of price competition with three firms under horizontal product differentiation—and then extended to a more general Bertrand triopoly.
Emanuele Bacchiega, Paolo G. Garella
wiley   +1 more source

Research on Sensorless Technology of a Magnetic Suspension Flywheel Battery Based on a Genetic BP Neural Network

Actuators
The research object of this paper is a new type of multi-functional, air-gap-type, vehicle-mounted magnetic suspension flywheel battery. It is a new energy storage technology with a long working life, high energy conversion efficiency, multiple charging ...
Weiyu Zhang, Fei Guo
doaj   +1 more source

Synthesis and Application of Conductive Pitch‐Based Porous Carbon for Energy Storage Device as a Supercapacitor

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 3, May/June 2026.
ABSTRACT Conductive pitch‐based porous carbon materials were synthesized and systematically investigated as high‐performance electrode materials for supercapacitors. Petroleum‐derived pitch was thermally treated and chemically activated using KOH and NaOH at different pitch: activating agent molar ratio (1:1, 1:2, and 1:4) to optimize the pore ...
Sang Wan Seo, Min Seong Han, Hyeon Taek Jeong, Ji Sun Im   +3 more
wiley   +1 more source

Electromechanical Battery EMB Mass Minimization taking into Account its Electrical Machines Rotor Energy

Electrical, Control and Communication Engineering, 2014
In this paper the electromechanical battery (EMB) with synchronous machine is described. Theoretically, if electrical machines rotor stored energy is known, it is possible to reduce the flywheel mass of electromechanical battery.
Podgornovs Andrejs, Sipovichs Antons
doaj   +1 more source

Capturing State‐of‐Charge‐Dependent Efficiency in Battery Energy Storage Systems: A Bernoulli Model Approach

Battery Energy, Volume 5, Issue 3, May 2026.
Conventional battery energy storage system models assume constant efficiencies, overlooking key physical limitations. This work introduces an analytical model with realistic state‐of‐charge (SOC)‐dependent efficiencies and charge acceptance, predicting that system operation concentrates in intermediate SOC ranges—a critical, overlooked behaviour ...
Elisa Gebennini, Silvestro Vespoli, Mosè Gallo, Andrea Grassi   +3 more
wiley   +1 more source

Flywheel Energy Storage: An Alternative to Batteries For UPS Systems

Energy Engineering, 2005
ABSTRACT Direct current (DC) system flywheel energy storage technology can be used as a substitute for batteries to provide backup power to an uninterruptible power supply (UPS) system. Although the initial cost will usually be higher, flywheels offer a much longer life, reduced maintenance, a smaller footprint, and better reliability compared to a ...
Daryl R. Brown, William D. Chvala
openaire   +1 more source

Power Grid Primary Frequency Control Strategy Based on Fuzzy Adaptive and State-of-Charge Self-Recovery of Flywheel–Battery Hybrid Energy Storage System

Energies
The integration of new renewable energy sources, such as wind and solar power, is characterized by strong randomness and volatility, which increases the risk of power grid system frequency fluctuations exceeding limits.
Shaobo Wen, Yipeng Gong, Zhendong Zhao, Xiufeng Mu, Sufang Zhao   +4 more
doaj   +1 more source

Membrane Engineering for Battery Systems: Bridging Design Principles and Frontier Applications

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The review emphasizes membrane separators' role in battery performance and safety, covering redox flow, lithium‐ion, and solid‐state batteries. It reviews advances in membrane materials (e.g., polymer electrolytes, hybrid composites) and ion transport mechanisms, while addressing challenges like dendrite growth and crossover losses.
Xiaoqun Zhou, Justice Delali Akoto, Rui Tan, Jun Ma   +3 more
wiley   +1 more source

Effective Short-Term Energy Accumulation for Means of Transport

Transactions on Transport Sciences, 2014
This paper presents a new conceptual design of an efficient flywheel battery, designed from commercially available components. The basic idea is based on a possibility of using a spare wheel of a vehicle, or its steel or aluminium disc, as the gyroscope ...
Plomer J.
doaj   +1 more source

Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
This paper explores global solar PV deployment, cost trends, and grid integration challenges in 2025. It examines the role of energy storage in firming solar output and supporting electric vehicle (EV) growth, alongside policy shifts, investment flows, and technological innovations.
Ehsan Rezaee, S. Ravi P. Silva
wiley   +1 more source