Accession Number : ADA299157

Title :   Development of an Ultra-Safe Rechargeable Lithium-Ion Battery.

Descriptive Note : Research and development status rept. no. 2, 16 Nov-15 Dec 94,

Corporate Author : ELECTROFUEL MFG CO TORONTO (ONTARIO)

Personal Author(s) : Jacobs, J. K.

PDF Url : ADA299157

Report Date : 15 DEC 1994

Pagination or Media Count : 8

Abstract : The work continued in a number of areas, however particular focus was on two central issues: (1) Verification of bonding procedures for inter-electrode and intra-electrode bonding using a series of fluorinated vinyl copolymers as adhesives/ion-conductors. These are plasticized with organic carbonates typical of the electrolyte (eg. EC, DEC) to improve both flexibility and ion conductivity. Two procedures appear to be equally effective. These are: a. Coating with water based latex slurry followed by air drying and hot pressing/laminating. b. Solution casting, from ketone solvents, of a slurry or interlayer followed by hot air drying and "warm" laminating. Manufacturability considerations will dictate the method of choice. (2) Design of the flexible manufacturing line is further advanced than had been expected at this time, with fabrication of prototype web-handling equipment (coater, laminator, drier, and associated ancillaries) having started. Specifications of the motor/controller and gear reducer system for the web drive of the prototype battery production machine have also been completed. This step allows ordering of all major components of the flexible battery manufacturing line to proceed. jg p.4

Descriptors :   *IONS, *BONDING, *LITHIUM BATTERIES, CONTROL, MANUFACTURING, PRODUCTION, VERIFICATION, CONDUCTIVITY, SOLUTIONS(MIXTURES), AIR, WATER, HIGH TEMPERATURE, LAMINATES, COPOLYMERS, PROTOTYPES, HOT PRESSING, REDUCTION, COATINGS, SLURRIES, ELECTRODES, ORGANIC COMPOUNDS, DRIVES, MACHINES, SOLVENTS, CASTING, ELECTROLYTES, MOTORS, GEARS, DRYING, FLUORINATED HYDROCARBONS, FLUORINATION, KETONES, LATEX, VINYL PLASTICS, ELECTRIC BATTERIES, CARBONATES, WEBS(SHEETS).

Subject Categories : Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry
      Electrochemical Energy Storage
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE