Battery electrode sheaths

Details Battery electrode sheaths Battery electrode sheaths

1976-09-02

1977-09-13

Lefevour, C. F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

H01M 218

Patent

active

040483983

ABSTRACT:
A sheath for a storage battery electrode comprises a braid or weave of inorganic fiber threads and a plurality of axial threads extending along the axial length of the sheath and forming crossing points with the inorganic threads. The axial threads comprise a mixture of at least two thermoplastic materials having different softening temperatures. Fabrication of the sheath involves tensioning the sheath and heating it to a temperature sufficient to soften the thermoplastic fiber having the lower softening temperature to bond the latter to the inorganic fibers at the crossing points. The heating is sufficient to weaken the thermoplastic fibers having the higher softening temperature to enable the latter to be only slightly elongated under tension, to enable internal stresses of the axial threads to be substantially equalized.

REFERENCES:
patent: 2176428 (1939-10-01), Kershaw
patent: 3224905 (1965-12-01), Hentschel
patent: 3694265 (1972-09-01), Sundberg
patent: 3801399 (1974-04-01), Sundberg

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