Element Energy

Element Energy-led project UKESL demonstrates grading and sorting of end of life Nissan EV batteries, for the first time in the UK

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A new public report produced by Element Energy summarises the key activities of the UK Energy Storage Lab project and the implications for the battery and energy storage sectors

Once EV batteries have fulfilled their life-span for automotive applications, they are usually recycled. However many automotive batteries have enough life left in them after the car is scrapped for ‘second-life’ uses. To do this, it is necessary to “grade” the used batteries – identifying whether they are suitable for use as spare parts or “second life”.

Car company Nissan were keen to explore ways to make a much faster grading process for their used Nissan LEAF’s batteries. Part-funded by BEIS (Business, Energy and Industrial Strategy) the ‘UK Energy Storage Laboratory’ project was launched, where 50 Nissan LEAF batteries were used to develop the existing grading process led by Nissan, WMG, AMETEK and Element Energy.

WMG developed a methodology for used automotive Lithium-ion batteries, at pack level. This methodology was successfully transferred to a pilot facility, where the target of 1MWh of packs graded for second-life energy storage applications was achieved.

In addition, WMG developed ways of grading modules – the sub-components of battery packs in as little as 3 minutes – a process which previously took over 3 hours. The algorithm was integrated into AMETEK’s machine with the aim to commercialise the prototype as a new product.

Second-life battery packs can provide reliable and convenient energy storage options for customers with solar panels and for customers in need of electricity on the move. Crucially, the packs can be used for storage of intermittent renewable energy.

Celine Cluzel, Director, Element Energy comments:
“Reconditioning car batteries has to become business as usual – it makes sense environmentally and commercially. This project has proven a scalable process to deploy reconditioning and represents a significant milestone in the UK pathway to net zero emissions.”

The full press release can be found on WMG’S Website.

For more information on this project, please see the UKESL Public Report here or contact Sarah Clements (sarah.clements@element-energy.co.uk).








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