Chemistry: electrical current producing apparatus – product – and – Fluid active material or two-fluid electrolyte combination...
Patent
1996-08-12
1998-08-25
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Fluid active material or two-fluid electrolyte combination...
429206, 429223, 429249, H01M 436, H01M 216
Patent
active
057981892
ABSTRACT:
A nickel-hydrogen secondary battery is disclosed wherein a long life is assured, an improved self-discharging property in a high temperature storage and the inhibition of increase in inner pressure of the battery in the occasion of over-charging can be realized. The nickel-hydrogen secondary battery comprises, a case, a paste-type positive electrode accommodated in the case and containing nickel hydroxide and a polymeric binder, a paste-type negative electrode accommodated in the case and containing a hydrogen-absorbing alloy and a polymeric binder, a separator accommodated in the case in so as to be interposed between the positive and negative electrodes, and an alkali electrolyte accommodated in the case. The separator is formed of a sheet material containing polyolefin-based synthetic resin fibers and has a hydrophilic first surface and a second surface having hydrophilic and hydrophobic portions, the separator is interposed between the positive and negative electrodes with the second surface facing toward the negative electrode.
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Hayashida Hirotaka
Ono Tomoyuki
Soeda Tsuyoshi
Teraoka Hirohito
Yamamoto Masaaki
Kabushiki Kaisha Toshiba
Skapars Anthony
Toshiba Battery Co., Ltd.
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