Solvent-free approach for processing hybrid solid electrolytes

An all-solid-state battery represents a promising solution for overcoming current lithium-ion batteries ’technological and safety limitations. However, the individual limitations of both inorganic and organic solid electrolytes hinder technological progression. Hybrid solid electrolytes hold the potential to surpass these limitations by...

Hydrogen power for the Allseas fleet: A methodology to design a hybrid electric propulsion system with fuel cells and batteries

Global warming is a topic of major concern the last decade and for reason the IMO adopted a strategy to reduce the emissions of greenhouse gasses of vessels. In order to meet the IMO requirements ships propulsion systems need to become more sustainable. An option to reduce emission is the implementation of fuel cells running on hydrogen together...

A new look for residential hybrid systems: A PV-battery-electrolyser-fuel cell power system for a neighbourhood in the Netherlands

With the rise of various renewable energy sources, comes the possibility for combining the different type of sources together to balance their shortcomings. The goal is to find a renewable energy system that can be reliable year-round and be accessible for everyone. This research tries to model such a system. A model of a grid-tied PV-battery...

Developing a Solid-State Battery Phase-Field Model

The ongoing worldwide energy transition has prompted significant scientific interest in energy storage. Rechargeable lithium-ion batteries have become a standard for energy storage in mobile devices and electric vehicles for their mass-energy density. While industry standard lithium-ion cells are currently based on liquid electrolytes, solid...

Study on SPEEK based electrolyte for lithium ion conduction in batteries

Preparation of SPEEK based electrolytes using lithium slats

The Impact of Extreme Weather Conditions on a Renewable Dominated Power System in Germany and Measures to Maintain Security of Supply

With an increasing share of photovoltaic and wind in the German generation mix, the power supply reduces its CO2 emission and becomes more weather dependent. In order to guarantee the security of supply, the volatile power output by the renewables asks for compensation by other sources. These backup technologies have to cope with a variety of...

Organic crystals and improved electrolyte for aqueous sodium-ion batteries: Fundamental insights in new organic anode materials for aqueous sodium-ion batteries using DFT calculations and experimental insights in increased electrolyte stability

Density Functional Theory (DFT) calculations were performed to explore the electrochemical properties of two organic molecules that show promise to serve as affordable and safe anode materials in aqueous sodium-ion batteries. Upon sodium insertion, N,N’ –bis(methyl)- 1,4,5,8-naphthalene diimide (NDMe) appears to share sodium atoms with three...

An assessment of the relationship between battery size, charging strategy and battery lifetime

The aging behaviour of lithium-ion batteries is studied to develop an aging prediction model for the capacity loss of batteries in full electric ships. This model is used to investigate the effects of battery aging on the battery size and operational strategies of two case studies, a full electric ferry and a full electric tug.

N,N'-dimethyl-1,4,5,8-naphthalene-carboxylicdimide as electrode material for cheap & large scale sodium ion batteries

Energy storage plays a key role in the transit from fossil fuels, as main energy source, to sustainable ones. In this work, it is tried to find an electrode material which can eventually be used in potentially cheap, large scale rechargeable sodium-ion batteries. This application would ideally be made of abundant, safe and environmental friendly...

Topology optimization of lithium ion batteries: How to maximize the discharge capacity by changing the geometry

Discharge capacity is an important factor that determines the performance of lithium ion battery. The internal resistance of the electrodes influence the discharge capacity. As the electrode geometry influences its resistance, topology optimization can be applied to determine the electrode shape such that it has a minimal internal resistance and...

Failure mechanisms in lithium silicon batteries

Lithium silicon (Li-Si) batteries offer more than ten times the theoretical specific capacity compared to current lithium ion battery technologies, by using a silicon anode. In practice however, the cycle life of Li-Si batteries is very limited. The large volume change of the silicon anode is known to be the main reason for this. Research on the...