Metal deforming – By use of roller or roller-like tool-element – Including tautening of work during deformation
Patent
1994-07-12
1996-06-25
Bray, W. Donald
Metal deforming
By use of roller or roller-like tool-element
Including tautening of work during deformation
72 39, 72 42, 72 46, 72700, B21B 3908
Patent
active
055289207
ABSTRACT:
A film of lithium capable for example of providing the anode of a polymer electrolyte battery is produced by laminating a lithium sheet between two working rolls. At the outlet, the film remains attached to one of the two rolls up to a given point of the circumference of the latter where it forms an angle of about 90.degree. with the meeting point between the two rollers. A sufficient tension is thereafter exerted on the film, which in any case is inferior to the limit of elasticity of lithium, by pulling the film in order to detach it from the surface of the roller and usually so that the given point moves into an intermediate position between 90.degree. and the meeting point, for example about 45.degree.. The product obtained may also be used any time there is a need for a film of lithium having a thickness for example between 10 and 100 .mu.m.
REFERENCES:
patent: 712365 (1902-10-01), Dejey
patent: 1516098 (1924-11-01), Heyer
patent: 3721113 (1973-03-01), Hovsepian
patent: 4502903 (1985-03-01), Bruder
patent: 5102475 (1992-04-01), Raymund et al.
Bouchard Patrick
Guerin Paul-Emile
Laroche Guy
St-Amant Guy
Bray W. Donald
Hydro-Quebec
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