ECS Detroit Section Presents “Challenges for solid state batteries and critical role of mechanics”

The ECS Detroit Section invites you to join Sergiy Kalnaus for his webinar on Thursday, December 16, 2021.

Date: December 16, 2021

Time: 1900h ET
Cost: Free


Sergiy Kalnaus
Staff Scientist, Oak Ridge National Laboratory

Webinar is open to the public

Format: Zoom Meeting
Pre-registration: Required through ECS My Account
Don’t have one? It’s easy to create—visit Create an Account now.

Registration is required to view the webinar. ECS membership is not required to participate.


Solid state batteries promise to reach specific energy >500 Wh/kg when a metallic Li anode is employed. They also provide an opportunity for increase in battery safety by replacing liquid electrolytes containing flammable and toxic solvents with solid state ionic conductors. Despite high expectations, there are still substantial challenges to overcome in the areas of materials development and processing/manufacturing. The key requirement for a solid state cell is the ability to maintain robust lithium/electrolyte and cathode/electrolyte interfaces over many cycles. In its basic form, this condition implies that there should be no loss of contact between electrodes and the electrolyte, and that the electrolyte should retain its integrity with cycling. Satisfying this condition is not trivial, considering dimensional changes in cell components due to mass transport and electrolyte reactions with lithium. This talk summarizes achievements in the area of solid state batteries and the remaining challenges, with partial emphasis on mechanics of materials constituting a solid state cell.

Sergiy Kalnaus

Sergiy Kalnaus is a staff scientist at the Oak Ridge National Laboratory (ORNL), where he uses experiments and computational modeling to address materials behavior at different length scales—from nanomechanics of solid electrolytes to crashworthiness of battery packs.

Dr. Kalnaus completed his MS in Mechanical Engineering at the National Technical University “Kharkiv Polytechnic Institute” in 1998, and PhD in Mechanical Engineering at the University of Nevada, Reno, in 2009. He joined ORNL as a Research Associate in 2009 and was named Research Scientist in 2012. Dr. Kalnaus is the author or coauthor of more than 50 journal publications; four patents; and “Composite Electrolytes for Facile Lithium Transport and Mechanical Strength,” a chapter in the Handbook of Solid State Batteries. As part of the ORNL team which developed an impact resistant electrolyte for batteries, he received the 2017 R&D 100 Award.

ECS sections

ECS sections offer many opportunities for members to engage and expand their professional networks. Not a section member? Email and ask to join your region’s ECS section. 


All content provided in the ECS blog is for informational purposes only. The opinions and interests expressed here do not necessarily represent ECS's positions or views. ECS makes no representation or warranties about this blog or the accuracy or reliability of the blog. In addition, a link to an outside blog or website does not mean that ECS endorses that blog or website or has responsibility for its content or use.