Accession Number : AD0859386

Title :   Organic Electrolyte Permselective Membranes.

Descriptive Note : Rept. no. 2 (Annual), 1 Apr 68-1 Apr 69,

Corporate Author : CALIFORNIA UNIV BERKELEY SEA WATER CONVERSION LAB

Personal Author(s) : Dampier, F. W. ; Spiegler, K. S.

Report Date : SEP 1969

Pagination or Media Count : 62

Abstract : This investigation is concerned with the evaluation of membrane separators for prevention of self discharge in the lithium-copper chloride-propylene carbonate (PC) cell. Measurements of electrical conductance were completed for six commercial and specially prepared cation exchange membranes in half-molar lithium perchlorate-PC at 25C. In order to combine the advantages of cation selectivity and low resistance, laminated membranes consisting of a thin layer of phenolsulfonic acid-formaldehyde cation exchange resin on a polypropylene support were prepared. They were found to be chemically stable in PC with moderate electrical resistance. A commercial laminar membrane was also tested and found to be stable. The rate of diffusion of cupric perchlorate through the membrane into pure PC was found. (Author)

Descriptors :   *ORGANIC SOLVENTS), (*STORAGE BATTERIES, (*BATTERY SEPARATORS, MEMBRANES), (*MEMBRANES, TRANSPORT PROPERTIES), LITHIUM, COPPER COMPOUNDS, DIFFUSION, CHLORIDES, IONS, ELECTRODIALYSIS, ION EXCHANGE RESINS.

Subject Categories : Physical Chemistry
      Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE