EduBourseActualitésAir Products Awarded Two Key Patents for Lithium Ion Batteries

Air Products Awarded Two Key Patents for Lithium Ion Batteries

Stabilife™ Salts Provide Better Performance Under Adverse Conditions

LEHIGH VALLEY, Pa. (June 17, 2008) – Air Products (NYSE:APD) today announced it has received two United States patents covering usage of its Stabilife™ fluorinated electrolyte saltsin lithium ion batteries. These salts have been formulated to stand up to the difficult conditions expected from next generation portable power applications as well as hybrid electric vehicles (HEV).

United States patents 7,311,993 and 7,348,103, both entitled “Polyfluorinated Boron Cluster Anions for Lithium Electrolytes,” protect improvements in lithium electrolytes used in lithium ion batteries.

“These patents will help Air Products develop the materials for next generation HEVs,” said Wayne Mitchell, vice president and general manager of Performance Materials for Air Products. “They are testament to the enabling characteristics of fluorinated materials for lithium ion batteries, as well as our company’s 30 2022s of experience working with fluorine compounds.”

Air Products’ Stabilife Salts are electrolyte salts based on the poly-fluorinated borane cluster anions, [B12FxH12-x]2. Stabilife salts have exhibited extraordinary thermal and hydrolytic stability that can allow for the use of safer, lower cost electrode materials, such as LiMn2O4 and LiFePO4, in large format lithium ion batteries. They also have expanded the operating temperature window of lithium ion batteries versus currently employed lithium electrolyte salts.

In addition, Stabilife Salts’ unique electrochemistry enables them to provide inherent overcharge protection to lithium ion batteries through redox shuttle chemistry. They are produced at a pilot plant housed within Air Products’ fluorine-based chemicals plant in Hometown, Pa.

More information on Stabilife Salts can be found at

Air Products (NYSE:APD) serves customers in industrial, energy, technology and healthcare markets worldwide with a unique portfolio of atmospheric gases, process and specialty gases, performance materials, and equipment and services. Founded in 1940, Air Products has built leading positions in key growth markets such as semiconductor materials, refinery hydrogen, home healthcare services, natural gas liquefaction, and advanced coatings and adhesives. The company is recognized for its innovative culture, operational excellence and commitment to safety and the environment. Air Products has annual revenues of $10 billion, operations in over 40 countries, and 22,000 employees around the globe. For more information, visit

NOTE: This release may contain forward-looking statements. Actual results could vary materially, due to changes in current expectations.


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Pierre Perrin-Monlouis
Pierre Perrin-Monlouis
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