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Electrical Storage | BMBF
Lithium-ion batteries 11.4.2017

New generation of lithium-ion batteries

A young research group investigated aqueous electrolytes based on lithium-ion batteries for intermediate storage of electrical energy. The young researchers are developing new coatings and electrolytes for the stabilization of the active components. ... more


Thermal Storage | BMBF
Materials and components 15.3.2017

Increasing the energy density of thermal storages

Scientists optimise materials and components for soprtion-based thermal energy storages of high energy density. Sorption reservoirs for buildings currently achieve an energy density of about 130 kWh / m³. In the project MAKSORE the researchers want to achieve an effective usable volumetric energy density of at least 180 kWh / m³. ... more


Thermal Storage | BMWi
Long-term storage 9.1.2017

Saisonal storage in aquifers

Aquifers have a large storage capacity and offer considerable potential as seasonal thermal or cooling storage systems. In a research project, researchers developed an improved storage concept for supplying heating and cooling energy to buildings and entire urban districts. For this purpose, they are combined the expertise from various specialist areas such as energy technology, geochemistry, hydrogeology, architecture and urban development. ... more


Overarching Themes | BMWi
Central energy management system 9.1.2017

City as Storage

A central

management system in a City can make electricity producers and consumers work

together. The result is a virtual energy storage for the energy system.

Scientists developed a management system that bundles cogeneration systems, heat

pumps , night storage heaters, photovoltaic batteries and other equipment. .

.. more


Physical Storage | BMWi
Stationary battery storage systems 8.11.2016

Cost-effective manufacture of lithium batteries

Compared with other electrochemical storage systems, lithium-ion batteries have high energy efficiencies, high energy densities and long service lives. They are therefore the first choice for many mobile applications. However, they are still not used very much as stationary storage systems and are comparatively expensive. It is intended that environmentally friendly and cost-effective production processes for the battery cells and storage systems shall change that. ... more


Electrical Storage | BMWi
Grid management 7.11.2016

Management of decentralised PV-battery systems

Net parity of photovoltaic electricity with the price for domestic consumers makes on-site consumption of locally generated electricity increasingly interesting. Efficient and long-life batteries will allow storage to increase on-site consumption in future. In the ”Net-PV“ project, researchers are investigated the opportunities and benefits of different operating strategies for solar battery systems and the combination of business models. ... more


Thermal Storage | BMBF
Organic PCM 5.9.2016

Phase change material is crystallised

With micro-encapsulated or emulsified organic phase change materials, the solidification temperature is frequently below the melt temperature. This so-called undercooling is a hindrance for many applications. By means of systematic investigations, the researchers achieved a fundamental understanding of the physical principles. Based on the experimental findings, models developed that make it possible to forecast the crystallisation properties. ... more


Thermal Storage | BMWi
Latent heat storage with super insulation 1.8.2016

How to store heat for weeks

Scientists are developed solar cylinders, which can store solar heat for weeks. For this purpose they combineed a patented latent heat storage material with super insulation. Compared to equally sized conventional water storages, the solar cylinders have three times the storage capacity and have only one tenth of the heat losses. ... more


Thermal Storage | BMWi
Composite materials 7.7.2016

Latent heat storage for central heating

Scientists at the Institute of Thermodynamics and Thermal Engineering at the University of Stuttgart developed with partners in the project EnErChem a thermochemical energy storage for building heating ins ingle-family and multi-family houses. A demonstration plant shows that the memory can withstand under real conditions. ... more


Thermal Storage | BMWi
Liquid sorptionstorage 4.7.2016

Saline stores process and solar heat

Scientists at the University of Applied Sciences Stuttgart constructed an open air run sorption heat storage, that regenerates itself by process heat or solar thermal energy. Prototypes were developed, consisting of regenerator, absorber and the storage. These can be used for various cooling, heating and drying applications. By 2017, the storage is to be ready for the market. ... more


Supported by: The Federal Government on the basis of a decision by the German Bundestag

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