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Extrusion of electrode material by liquid injection into extruder barrel

Patent ·
OSTI ID:597097

An electrode sheet product is formed using an extruder having a feed throat and a downstream section by separately mixing an active electrode material and a solid polymer electrolyte composition that contains lithium salt. The active electrode material is fed into the feed throat of the extruder, while a portion of at least one fluid component of the solid polymer electrolyte composition is introduced to the downstream section. The active electrode material and the solid polymer electrolyte composition are compounded in a downstream end of the extruder. The extruded sheets, adhered to current collectors, can be formed into battery cells. 1 fig.

Research Organization:
US Advanced Battery Consortium
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FC02-91CE50336
Assignee:
W. R. Grace and Co.-Conn., New York, NY (United States)
Patent Number(s):
US 5,725,822/A/
Application Number:
PAN: 8-653,174
OSTI ID:
597097
Country of Publication:
United States
Language:
English

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