Nilar International Ab

David W Hock

Neil H Puester

Lars Fredriksson

Niel Puester

A gasket is for use in a starved electrolyte bipolar battery. The gasket may be made from a hydrophobic material in the shape of a frame to prevent the creation of an electrolyte path between adjacent cells when mounted in a battery. The frame may be designed to at least partially encompass a biplate when mounted in a bipolar battery, and include a device or way to permit gas passage through the gasket. The gasket may be made from a material with deformable properties to provide a sealing to a biplate and/or endplate when mounted in a bipolar battery, whereby an outer pressure tight seal of the battery may be obtained. A starved bipolar battery and a method for manufacturing a starved bipolar battery are also disclosed.

Method for manufacturing a bipolar battery with a gasket

A gasket for a bipolar battery comprises a structural part in the shape of a frame having an upper surface and a lower surface, and at least one channel to permit gas passage through the gasket. The structural part may be made from a first material having hydrophobic properties. The gasket further comprises at least a first sealing surface arranged in a closed loop projecting from the upper surface, and at least a second sealing surface arranged in a closed loop projecting from the lower surface. The first and the second sealing surfaces are provided on at least one sealing part, are made from a second material, and the first material of the structural part has a higher elastic modulus than an elastic modulus of the second material of the sealing parts. A bipolar battery and a method for manufacturing a gasket are also disclosed.

Method for manufacturing a gasket

A gasketfor use in a starved electrolyte bipolar battery comprises a structural partin the shape of a frame having an upper surfaceand a lower surface, and at least one channelto permit gas passage through the gasket. The structural part is made from a first material having hydrophobic properties. The gasketfurther comprises at least a first sealing surfacearranged in a closed loop projecting from the upper surface, and at least a second sealing surfacearranged in a closed loop projecting from the lower surface. The first and the second sealing surfaces are provided on at least one sealing part, are made from a second material, and the first material of the structural parthas a higher elastic modulus than an elastic modulus of the second material of the sealing parts. A starved electrolyte bipolar battery and a method for manufacturing a gasket are also disclosed.

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Castle Rock, CO, United States of America

David W Hock