News
Another domestic BESS explosion in Germany
The explosion occurred in Schönberg near Sandesneben in February 2025 and the cause has been attributed to the BESS of the PV system. The remains of the house will have to be demolished. Happily, the family were on vacation. I believe I have stated in previous post(s)...
Hazards of EVs not the same as ICEVs
Our tests during w/b 24 Feb 25 really got me thinking. Re electric vehicles, there is still the feeling that there is no difference in terms of risk between EVs and ICEVs. With respect to Heat Release Rate (HRR), I accept that this is valid – 80% of the HRR is from...
Field tests highlight unexpected toxic hazard of vapour cloud
During w/b 24 Feb we did various tests on our 1.7 kWh pouch cell modules. The aim of one set of tests was to measure the volume and rate of production of the vapour cloud in purpose-built equipment. The equipment consisted of a c.a. 20 cm x 30 cm x 40 cm steel box...
Inhalation of smoke or vapour cloud from LiBs
Kristina Stiles, Plastic Surgery Clinical Nurse Specialist (Bank), King’s College Hospital NHS Foundation Trust has drawn my attention to some very interesting presentations and posters at the joint British Burn Association and International Society for Burn Injuries...
New HSE guidance for BESS
HSE BESS guidance. New guidance from the UK Health and Safety Executive. Very high level and thin on detail. However, it is the first time I have seen "Under the Dangerous Substances (Notification and Marking of Sites) Regulations, if you are an operator of a BESS...
Air Busan bans powerbanks in overhead lockers
Air Busan bans powerbanks in luggage in overhead lockers. Air Busan has banned the powerbanks following a fire that destroyed an aircraft on the runway at Hong Kong on 28 January this year. All on board were evacuated safely with no injuries. https://lnkd.in/e_6U5EsT
Amazing breakthrough in lithium-ion battery technology?
I am very excited by potential of the recent paper by I. T. Song et al., “Thermal runaway prevention through scalable fabrication of safety reinforced layer in practical Li-ion batteries”, Nature Communications, v15 (2024) 6806. It reports that a thin layer of a...
Estimating SoC, and hence SoH, in BESS is challenging
I have read a lot about data analytics (DA) and have had discussions with several DA companies. Experts in DA are really sceptical over the ability of BMS to measure (they tend to use the worrying word "estimate") State-of-Charge. Hitherto, I have not come across a...