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Title: Extrusion of electrode material by liquid injection into extruder barrel

Abstract

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.

Inventors:
 [1];  [2];  [3]
  1. Baltimore, MD
  2. Reisterstown, MD
  3. Highland, MD
Issue Date:
Research Org.:
United States Advanced Battery Consortium, Dearborn, MI (US)
OSTI Identifier:
871408
Patent Number(s):
5725822
Assignee:
W. R. Grace & Co.-Conn. (New York, NY)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
FC02-91CE50336
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Keller, David Gerard, Giovannoni, Richard Thomas, and MacFadden, Kenneth Orville. Extrusion of electrode material by liquid injection into extruder barrel. United States: N. p., 1998. Web.
Keller, David Gerard, Giovannoni, Richard Thomas, & MacFadden, Kenneth Orville. Extrusion of electrode material by liquid injection into extruder barrel. United States.
Keller, David Gerard, Giovannoni, Richard Thomas, and MacFadden, Kenneth Orville. Thu . "Extrusion of electrode material by liquid injection into extruder barrel". United States. https://www.osti.gov/servlets/purl/871408.
@article{osti_871408,
title = {Extrusion of electrode material by liquid injection into extruder barrel},
author = {Keller, David Gerard and Giovannoni, Richard Thomas and MacFadden, Kenneth Orville},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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