Meet the Emerging Battery Separator Requirements with UL
The integrity of the separator - the film that keeps the anode and cathode apart while still allowing ions to flow between them - is a vital component in battery safety. 
UL has worked with the industry to revise requirements for characterizing battery separators in order to enhance the safety of lithium battery cells sold in the US market. Therefore, the Subject 2591 was issued in December 2009.
Whether you are a separator manufacturer, or a battery manufacturer who uses separators, evaluation to this Subject will assure control of a critical component to cell safety and thus reduce the potential for product failure and enhance consumer confidence in your products. UL offers full testing and certification services against the requirements to give assurance of conformity to both manufacturers and their customers. At the same time, UL can provide you with technical information and guidance you need to achieve conformance with the requirements.
Why UL is your best choice for battery separator testing and certification
- UL's Reputation for independence, integrity and high quality, established over more than a century, has earned it the trust of companies and consumers worldwide.
- Strength in Battery Research: UL's dedicated R&D team for batteries is closely involved in identifying hazards, developing test methods and setting safety standards, enabling UL to anticipate changing requirements and be prepared for them.
- Established Battery Expertise: UL's years of experience in testing and certifying batteries and battery components make it the certification agency of choice for leading manufacturers and suppliers worldwide.
- Technical Capability: UL's fully equipped test facilities and its team of highly qualified engineers give it the capacity and capability to meet any requirement in this field. In addition to testing and certification, customers can also benefit from UL's related consultancy and training services.
For further information on UL Subject 2591, contact UL to learn more about how we can help you.
