Hybrid and alternative-energy vehicles are an important part of a sustainable future.  ExxonMobil Chemical leads with innovations that directly improve the performance of these vehicles.

Keeping lithium-ion batteries safe for use

A key example is microporous polymer separators that help improve safety, power, capacity and durability of lithium-ion batteries. This development is an integral piece of the technology puzzle when designing high-miles-per-gallon hybrid and electric vehicles.

The separator insulates the battery’s cathode and anode electrodes, while allowing free mobility of ions between them. This device also benefits safety as a fail-safe switch in the event a cell becomes too hot. With this technology, tomorrow's hybrid and electric vehicles can have lighter, smaller and more powerful lithium-ion batteries, and achieve better fuel efficiency and lower emissions.

ExxonMobil Chemical is committed to leading the way in designing lighter, more microporous film separators that offer even greater design flexibility and durability. As film separators continue to enhance power-related performance, the size and weight of battery systems can be reduced.