System structure for in situ x-ray study of electrochemical cell component performance
AssigneeRutgers, The State University
InventorsJohn Gural, Jean-Bernard Leriche, Mathieu Morcrette, Jean-Marie Tarascon
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Abstract
A structural system for accurately reproducible in situ x-ray studies of operating rechargeable electrochemical battery cell electrode components comprises an hermetically sealed cell component enclosure incorporating an x-ray transmissive window member of beryllium or the like. A research embodiment of the system comprises means for rapidly and consistently interchanging electrode compositions for operative comparison and evaluation, while a laminated cell system embodiment enables accurate testing of electrode components in commercial configurations such as unitary polymeric Li-ion battery cells.
Claims3
A system for in situ x-ray study of electrode component performance in a rechargeable electrochemical energy storage cell comprising a combination of opposed polarity electrode members and interposed separator member with electrolyte disposed within a hermetic enclosure having an integral x-ray transmissive window member situated to allow incidence therethrough of such radiation upon an electrode member site under study
- characterized in that the system comprises:
- a) a body providing a cylinder for receiving therein components of said cell member combination;
- b) sealing means surrounding the proximal end of said cylinder;
- c) a base plate providing a radiation access opening situated adjacent said cylinder proximal end and aligned concentrically therewith and within the circumference of said sealing means;
- d) said window member being situated intermediate said base plate and said sealing means and extending peripherally beyond said sealing means;
- e) means for removably affixing said base plate to said body and compressing said sealing means against said window to form an hermetic seal therewith;
- f) adjustable means situated at the distal end of said cylinder for applying compressive force urging said combination of cell components within said cylinder toward contact with said window member;
- and
- g) means for hermetically sealing said cylinder distal end.
Dependencies are inferred from the claim text.