Process for preparation of electrode for alkaline battery
AssigneeSanyo Electric Co., Ltd.
InventorYuji Morioka
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Abstract
A novel process is provided for producing an improved electrode for an alkaline battery comprising the steps of adding an unsintered fluorocarbon resin powder to an active material powder and intimately mixing them together, applying a shear force to said mixture to thereby form agglomerates capable of retaining said active material powder in a network structure resulting from a fiber-formation of said fluorocarbon resin powder, adding an aqueous solution of a paste to said agglomerates, kneading them to mutually bind said agglomerates and thus forming a rubbery mass converting said rubbery mass into a sheet and attaching the sheet thus formed onto an electrically conductive core. The process provides an electrode having excellent reactivity and results in improved production efficiency.
Claims10
A process for preparation of an electrode for alkaline battery comprising the steps of:
- (a) forming an intimate admixture consisting essentially of an unsintered fluorocarbon resin powder and a battery electrode forming active material powder;
- (b) applying a shear force to said mixture sufficient to cause the fluorocarbon resin to be formed into fibers and to form agglomerates capable of retaining said active material powder inside a network structure resulting from a fiberformation of said fluorocarbon resin powder;
- (c) adding an aqueous solution of natural or synthetic polymer paste to said agglomerates;
- (d) kneading the resulting mixture to mutually bind said agglomerates and thus form a rubbery mass;
- (e) converting said rubbery mass into a sheet;
- and
- (f) attaching the sheet so formed onto an electrically conductive core body.
Dependencies are inferred from the claim text.