Extrusion of electrode material by liquid injection into extruder barrel

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:871408

Keller, David Gerard ^[1]; Giovannoni, Richard Thomas ^[2]; MacFadden, Kenneth Orville ^[3]

---

1. Baltimore, MD
2. Reisterstown, MD
3. Highland, MD

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.

• Research Organization: United States Advanced Battery Consortium, Dearborn, MI (US)
• DOE Contract Number: FC02-91CE50336
• Assignee: W. R. Grace & Co.-Conn. (New York, NY)
• Patent Number(s): US 5725822
• OSTI ID: 871408
• Country of Publication: United States
• Language: English

Related Subjects

extrusion
electrode
material
liquid
injection
extruder
barrel
sheet
product
formed
feed
throat
downstream
section
separately
mixing
active
solid
polymer
electrolyte
composition
contains
lithium
salt
fed
portion
fluid
component
introduced
compounded
extruded
sheets
adhered
current
collectors
battery
cells
electrolyte composition
battery cells
active electrode
current collector
electrode material
polymer electrolyte
solid polymer
lithium salt
battery cell
liquid injection
current collectors
fluid component
sheet product
downstream section
electrode sheet
/264/