Quality Assurance of Lithium-Ion Batteries

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Lithium-ion batteries currently use only 30 percent of their maximum available storage capacity because premature failure of batteries can cause catastrophic results with huge financial as well as potentially fatal consequences. Manufacturing defects are a primary reason for the premature failure of batteries; however, there is not an effective way to test batteries until the components are assembled. Batteries are assembled by combining cathode and anode materials that have been coated onto thin metal films. Flaws in these coatings or the separator material can lead to premature failure of batteries, but currently, there is no method of testing for such flaws.

Researchers at Purdue University have developed an in-line technique for the manufacturing process to test for flaws in the coatings or metal films in batteries before they are assembled. This technology would allow for batteries with higher, more consistent quality components as well as a monitor to improve the manufacturing process of the cathode/anode materials. Batteries would have improved safety.

Advantages:
-Battery components can be tested before assembly
-Improve battery efficiency and safety

Potential Applications:
-Battery manufacturing
-Materials
Apr 23, 2014
NATL-Patent
United States
9,689,820
Jun 27, 2017

Oct 25, 2012
PCT-Patent
WO
(None)
(None)

Oct 25, 2011
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org