Maureen Sherrick
Bio
Maureen Sherrick currently serves as a Senior Product Development Chemist at Gridtential Energy Inc. She has worked in the lead acid battery research field for over 33 years including 22 years with East Penn Manufacturing Company and 9 years at Hammond Group Inc. The bulk of her experience has been related to paste and paste additives. Her research has produced both methods for fast screening of materials, as well as development of new improved additives.
Gridtential Energy has developed an innovative method of depositing active material onto the current collectors of bipolar batteries. The process involves applying the positive and negative active materials (PAM and NAM) simultaneously to the current collectors and then curing the subassembly as one. This results in strong corrosion layer formation on both the positive and negative plates while surface treatments result in a very large surface area of contact. The end result is a notable decrease in internal resistance inside the battery, which serves to both increase cycling life and improve high-rate performance for charge and discharge. Gridtential is currently working to further develop this process and is comparing the results with those of more traditional deposition methods. In practice, the team is observing a >10% decrease in internal resistance which is yielding a commensurate increase in cycle life and decrease in recharge time. All work has been conducted on Gridtential’s Silicon Joule platform, but the process could be applied to other platform types. The team will describe these latest results and speculate on the possible impact for bipolar lead batteries moving forward.
