Examination of the Effects of the Surfactant Coatings & Particle Size of Barium Sulfate on the Structure Changes and Performance of NAM in Energy Storage Systems (ESS) Applications
Partners
Hammond Group, Inc., East Penn Manufacturing and Eclipse Energy (USA)
Duration
April 2021 - present
Objective
This project is aiming to characterise the effects of different commercial barium sulphate additives in the negative electrode of the lead battery by comparing different sizes and surface treatments with the goal is to determine if there are certain additive configurations which are best for ESS applications
Research priorities
Optimize additive formulations to improve cycle life
See KPIs in our Technical Roadmap
Initial results
• Five different commercially available barium sulfates having different particles sizes and surface treatments were selected
• Barium sulfate characterized, also characterized in lead battery paste and resulting active material
• Physical and chemical properties of negative plates containing these barium sulfates were determined similar
• Electrical testing of 2V cells were performed according to IEC61427 1 to choose the best performing barium sulfates
• Negative plates after the completion of IEC testing were analyzed to determine failure modes
• Electrical testing of 12V batteries containing selected barium sulfates is underway
1 IEC61427: International standard to test batteries for renewable energy storage
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Project kick off news release
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