Why do EV batteries need custom elastomeric materials?

EV batteries present numerous challenges for design engineers seeking ways to extend range while achieving safety targets and minimizing complexity, volume, and weight. Rogers partners with OEMs and Tiers to improve and optimize battery performance by rapidly developing custom elastomeric material solutions unique and critical to each EV program.

What materials are used in a battery system?

battery system. PORON® polyurethane and silicone materials enable long-term cooling performance. ProcellTM EV Firewall provides compressibility and thermal protection. PORON polyurethane BISCO silicone materials deliver push back force to optimize life and performance.

What makes foam a good battery elastomer?

The performance of specially engineered polyurethane- and silicone-based foams will outlast the lifespan of the battery, which isn’t true for other potential materials solutions such as other elastomers. Another advantage is foam’s remarkable operational temperature range, much larger than most other rubbers.

Are foam batteries conductive?

But foams can be engineered to deliver the same, consistent return energy across a wide range of compression amounts, a property known as compression force deflection (CFD). Springs are also thermally and electrically conductive and can create hard spots in the battery.

Are lithium ion batteries good for EVs?

Lithium-ion (Li-ion) battery packs remain the go-to power source for the EV industry due to their impressive power density and charging efficiency. However, these batteries have relatively short operating lives and degrade quickly with age, issues that are exacerbated by challenging automotive environments.

How to protect a lithium ion battery?

Vibration and shock may cause battery capacity loss and mechanical degradation in lithium-ion cells. Compression materials placed between the cells can aid in mitigating this efect by protecting battery cells in cell-to-pack and cell-to-chassis designs. Indirect cooling is the most popular thermal management solution today.