EQS-Adhoc

Performance results of Leclanché's 60 Ah cells validate their use in fast-charge and long-range automotive applications

EQS Group-Ad-hoc: Leclanché SA / Key word(s): Study results/Conference Performance results of Leclanché's 60 Ah cells validate their use in fast-charge and long-range automotive applications 04-Nov-2020 / 19:17 CET/CEST Release of an ad hoc announcement pursuant to Art. 53 KR The issuer is solely responsible for the content of this announcement. Performance results of Leclanché's 60 Ah cells validate their use in fast-charge and long-range automotive applications

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YVERDON-LES-BAINS, Switzerland, 4^th November 2020 - Year-long testing of Leclanché SA (SIX: LECN)'s 60 Ah^[1] G/NMC battery cells has proven them to be both high energy density and high life cycle, critical characteristics for a wide range of automotive and e-transportation energy storage solutions.

The presentation of results was made by Dr. Petronela Gotcu, manager R&D Cells and Dr. Hilmi Buqa, vice president R&D Cells, Leclanché, at the International Battery Production Conference 2020 Braunschweig, Germany, held online this year from November 2 - 3. A poster with the results, presented at the conference, can be viewed at this link (https://www.leclanche.com/wp-content/uploads/2020/11/Poster-IBPC-2020.pdf). Leclanché is one of the world's leading energy storage companies.

Key findings include:

- The lifetime tests on these cells validate over 4000 cycles at ca. 1C/1C^[2] continuous for a 100% DoD^[3] at room temperature conditions. At the same time, the energy efficiency is stable and above 90% (minimal impedance increase).

- Our standard 60 Ah production G/NMC^[4] cells are high energy density and high power cells allowing good lifetime with higher C-rates symmetrical cycling: fast charge/ discharge within 30 minutes. This can be suitable for various applications, especially for fast charging EV-applications.

- Stable cells cycled between 3.00 - 4.35 V reaching 10% capacity increase in comparison to a standard G/NMC cell resulting in lower cost of installed battery pack (euros per kWh) for EV-applications.