摘要:
The present invention provides a high-performance, high-capacity secondary battery that uses neither sulfuric acid in the electrolyte solution, nor other materials that could contribute to environmental pollution. The present invention also provides a vehicle system employing a lead-free battery that uses no lead nor sulfuric acid, which can be harmful to the environment, and that achieves a higher performance and higher capacity that lead storage batteries. Further, the vehicle system includes a supplementary charging function for charging the battery while the vehicle is running, by taking advantage of the fast-charging characteristics of the lead-free battery, which are superior to those of lead storage batteries, enabling the vehicle to travel long distances on a single external charge. The secondary battery has an electrode formed of calcium, silver oxide, and carbon as the anode, an electrode formed of zinc and carbon as the cathode, and an aqueous alkaline solution as the electrolyte solution. The vehicle system has at least first and second battery packs configured of these lead-free batteries, in-wheel generators mounted within wheels of the vehicle, an electric motor for driving the vehicle, and a charging/discharging switch device having a controller for automatically switching between the first and second battery packs.
摘要:
Microthin sheet technology is disclosed by which superior batteries are constructed which, among other things, accommodate the requirements for high load rapid discharge and recharge, mandated by electric vehicle criteria. The microthin sheet technology has process and article overtones and can be used to form thin electrodes used in batteries of various kinds and types, such as spirally-wound batteries, bipolar batteries, lead acid batteries silver/zinc batteries, and others.Superior high performance battery features include: (a) minimal ionic resistance; (b) minimal electronic resistance; (c) minimal polarization resistance to both charging and discharging; (d) improved current accessibility to active material of the electrodes; (e) a high surface area to volume ratio; (f) high electrode porosity (microporosity); (g) longer life cycle; (h) superior discharge/recharge characteristics; (i) higher capacities (A·hr); and (j) high specific capacitance.
摘要:
A liquid retaining pressure relief valve for electrochemical battery cells is provided including a pressure regulator and a membrane vent that are mounted to the top and bottom ends of a threaded valve housing or plug. The valve housing or plug screws into the cell cover from the outside of the cell such that the membrane vent is internal to the cell. The membrane vent includes a thin gas permeable liquid repellant membrane that is molded into the body of the vent. The membrane is preferably composed of an expanded polytetraflouroethylene (ePTFE) polymer.
摘要:
A copolymer of an ethylenically unsaturated carboxylic acid, e.g. acrylic or methacrylic acid, and an aromatic sulphonate or carboxylate, e.g. sodium styrenesulphonate, either alone or supported on a substrate, may be used as a separator for an electrochemical cell such as a silver-zinc cell or a zinc-air cell.
摘要:
Separator for silver-zinc batteries made of cellulose and containing insoluble fluoride ions which when placed next to the cathode slowly release and retard silver deposition thereon.
摘要:
The instant invention is directed to a separator for a battery having a zinc electrode. The first embodiment of the separator comprises a microporous membrane and a coating on at least one surface of the membrane. The coating comprises a mixture of cellulose acetate and a surfactant. The surfactant has an active ingredient selected from the group of organic ethers. The second embodiment of the separator consists essentially of a microporous membrane having an effective average pore size of less than 0.045 microns, having a thickness less than 1.5 mils, having an electrical resistance of less or equal to 30 milliohms-inch2, and being adapted for wetting by an aqueous electrolyte.
摘要:
Microthin sheet technology is disclosed by which superior batteries are constructed which, among other things, accommodate the requirements for high load rapid discharge and recharge, mandated by electric vehicle criteria. The microthin sheet technology has process and article overtones and can be used to form thin electrodes used in batteries of various kinds and types, such as spirally-wound batteries, bipolar batteries, lead acid batteries, silver/zinc batteries, and others.Superior high performance battery features include: (a) minimal ionic resistance; (b) minimal electronic resistance; (c) minimal polarization resistance to both charging and discharging; (d) improved current accessibility to active material of the electrodes; (e) a high surface area to volume ratio; (f) high electrode porosity (microporosity); (g) longer life cycle; (h) superior discharge/recharge characteristics; (j) higher capacities (A.multidot.hr); and k) high specific capacitance.
摘要:
Substantial improvements to the cycle life of silverzinc cells were obtained by the addition of small amounts of bismuth oxide (Bi.sub.2 O.sub.3) to the negative zinc electrode, in conjunction with cadmium oxide (CdO) and lead oxide (PbO). These improvements, which can be extended to other zinc-based alkaline batteries, especially nickel-zinc and zinc-air, can also be realized in conjunction with other metal oxides and hydroxides, particularly indium hydroxide �In(OH).sub.3 !, which, like Bi.sub.2 O.sub.3, has the additional advantage of being non-toxic.
摘要翻译:通过向负锌电极中加入少量的氧化铋(Bi 2 O 3),与氧化镉(CdO)和氧化铅(PbO)结合,可以获得银锌电池的循环寿命的显着改善。 这些可以扩展到其他锌基碱性电池,特别是镍锌和锌空气的改进也可以与其它金属氧化物和氢氧化物,特别是氢氧化铟[In(OH)3]一起实现, 像Bi2O3一样,具有无毒的附加优点。
摘要:
A silver-iron battery is made comprising a case 14 and a cover 15 within which are disposed at least one silver electrode 11, at least one iron electrode 12, a separator system 13 between the electrodes and an alkaline electrolyte, where the separator system contains at least a layer of low density polyethylene, having a density of from about 0.91 g./cm.sup.3 to about 0.92 g./cm.sup.3, graft co-polymerized with an acrylic material, disposed next to the silver electrodes, and at least a layer of high density polyethylene, having a density of from about 0.95 g./cm.sup.3 to about 0.96 g./cm.sup.3, graft co-polymerized with an acrylic material, disposed next to the iron electrodes, and where a layer of cellophane can also be included next to the low density polyethylene and a middle layer of low density polyethylene and be included between the cellophane and the high density polyethylene.
摘要翻译:制成银 - 铁电池,其包括壳体14和盖15,在该壳体中设置有至少一个银电极11,至少一个铁电极12,电极之间的隔板系统13和碱性电解质,其中分离器系统包含 至少一层低密度聚乙烯,其密度为约0.91g / cm 3至约0.92g / cm 3,与布置在银电极旁边的丙烯酸材料接枝共聚,以及至少一层 密度为约0.95g / cm 3至约0.96g / cm 3的高密度聚乙烯,与邻近铁电极设置的丙烯酸材料接枝共聚,下面还可以包含玻璃纸层 到低密度聚乙烯和低密度聚乙烯的中间层,并被包括在玻璃纸和高密度聚乙烯之间。