Project SEE-2L - Stationary Electrical Energy Storage - Second Life Applications

Project results

Paper "Harmful effects of lithium-ion battery thermal runaway: scale-up tests from cell to second-life modules", in: RSC Advances, 2023

SEE-2L - Stationary Electrical Energy Storage - Second Life Applications

Due to the energy transition, decentralised energy storage systems are gaining in importance. Second life batteries, which no longer achieve the necessary performance in first life (e.g. e-mobility) due to ageing, are a promising alternative for decentralised energy storage. Here, various safety aspects must be taken into account. The focus is always on thermal runaway.

The aim of the SEE-2L project is to look at the effects of stationary electrical energy storage (EES) in Second Life applications during thermal runaway. Dangerous conditions should be detected as early as possible. In the case of thermal runaway, the fire behaviour of large EES systems is to be characterised.

One focus of the experiments is the in-situ analysis of gas release. In addition to flammable gases, toxic components such as carbon monoxide (CO) and hydrogen fluoride (HF) are typical release products. Among other things, a system consisting of several diode laser spectrometers for hydrogen fluoride (HF) is to be set up to determine whether and how much HF is released during thermal runaway.

Partners

BAM BAM Focus Area Energy, Activity Field Electrical Energy Storage and Energy Conversion
vfd German Fire Protection Assosiation
OVGU Otto von Guericke University Magdeburg, Faculty of Plant Engineering and Plant Safety

Funding

The SEE-2L project is a third party funded joint project of the Federal Ministry of Education and Research (BMBF).

Read more on the SEE-2L project on our German webpage.