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U.S. Department of Energy
Office of Scientific and Technical Information

Battery electrode sheaths

Patent ·
OSTI ID:7288731
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. 4 figures.
Assignee:
Aktiebolaget Tudor
Patent Number(s):
US 4048398
OSTI ID:
7288731
Country of Publication:
United States
Language:
English