摘要:
This invention provides a battery with a non-aqueous electrolyte that has excellent pulse discharge characteristics and has prolonged discharge duration days. In this battery with a non-aqueous electrolyte, lithium or a lithium alloy is used in a negative electrode (2), and an oxyhalide, which is liquid at room temperature, is used as a positive electrode acting substance. A bismuth compound or an indium compound is contained in the battery, whereby an excessive reaction between lithium and an oxyhalide is suppressed and consequently can reduce a voltage delay phenomenon at the time of start of discharge and can improve pulse discharge characteristics to prolong discharge duration days. The bismuth compound or indium compound is preferably incorporated in the battery by dissolving or dispersing the bismuth compound or indium compound in a positive electrode acting substance which serves also as an electrolyte.
摘要:
Presented is a virtually lead additive-free but highly reliable and practical anode active material with improved process-ability and corrosion resistance and a manganese dry battery made from that material. And, disclosed is a variation of manufacturing method of the material aforementioned in material composition of bismuth and others to add to zinc instead of lead together with engineering matters involved, and a manufacturing method of a manganese dry batteries with use of the proposed material.
摘要:
A method for manufacturing an electrode plate of a nonaqueous electrolyte battery comprises the steps of: running a sheet conductive base material in a first direction; and injecting an electrode material composition containing an electrolyte from a die nozzle onto a first surface of the running sheet conductive base material to form uncoated areas at predetermined intervals on the first surface along the first direction.
摘要:
A battery device designed so that a plurality of battery modules (1) are arranged in rows at given spaces in a enclosure (2). Turbulence accelerators (5), such as dummy battery units or the like, are provided in a position on the uppermost-stream side of the enclosure in which air flows in the direction of arrangement of the battery modules. The heat transfer ability for the battery modules in the upper-stream position is enhanced by the turbulence accelerators which disorders the airflow introduced into the enclosure. Auxiliary coolant intake ports (7) for the introduction of a coolant are provided in the middle of an airflow path, whereby the heat transfer ability on the lower-stream side is enhanced, so that battery temperature differences between the battery units arranged in the enclosure can be restrained. Thus, a simple-construction battery device is realized enjoying improved quality and operation stability.
摘要:
According to the invention, a high capacity alkali primary battery excellent in high rate characteristics is obtained using a positive electrode active substance, wherein the particles of the nickel oxyhydroxide base compound as the positive electrode active substance has a surface coated with a higher oxide of cobalt and comprises zinc and cobalt separately or an eutectic crystal with zinc and cobalt, and a half-width of an X-ray diffraction peak at a diffraction angle at around 18° in an X-ray diffraction pattern of 0.4 to 0.48 obtained by using a CuKα line as an X-ray source. A further excellent battery is obtained by using zinc containing a powder with a particle diameter of 75 µm or less in the range of 10% by mass or more and 20% by mass or less.
摘要:
There is provided a battery separator comprising synthetic resin fibers, wherein hydrophilization treatment, preferably plasma treatment is applied, and a contact angle to pure water indicates a value of 0 to 100 degrees; an alkali secondary battery in which a electrode group having the separator between a positive electrode and a negative electrode is sealed in a battery case together with an alkali electrolyte, in particular, a nickel-metal hydride secondary battery whose positive electrode is a nickel electrode and whose negative electrode is a hydrogen absorbing alloy electrode, wherein active substances of said nickel electrode comprising powders consisting essentially of nickel hydroxides and higher-order cobalt hydroxides formed a surface of a part or whole thereof are employed, thereby providing its superiority in both of self-discharge properties and charge and discharge cycle life performance.
摘要:
Provided is a hydrogen absorbing alloy superior to the MmNi 5 system hydrogen absorbing alloy and the TiFe system hydrogen absorbing alloy that are widely put to practical use in both the capacity density per unit volume and the capacity density per unit weight. The hydrogen absorbing alloy of the present invention is also superior to the conventional TiMn 2 system hydrogen absorbing alloy in the initial activation. The hydrogen absorbing alloy of the present invention is represented by a general formula AM x , where A is at least one element selected from IA group, IIA group, IIIB group, and IVB group of the periodic table, and M is at least one element selected from VB group, VIB group, VIIB group, VIIIB group, IB group, IIB group, IIIA group, IVA group and VA group of the periodic table, x meets the relationship of 2.7
摘要:
A nickel-hydrogen secondary battery has a positive electrode including a positive electrode mixture which contains a nickel compound as a major component and which is supported on a collector sheet, a negative electrode including a negative electrode mixture which contains a hydrogen absorbing alloy as a major component, a binder and an electrically conductive material and which is supported on a collector sheet, the positive and negative electrodes being stacked up alternately or rolled up with a separator interposed therebetween to form an electrode group, and a battery case containing the electrode group together with an electrolyte, the battery case having an opening closed with a sealing plate which is provided with a positive electrode terminal, wherein the binder contains at least carboxylated styrene-butadiene copolymer latex, the conductive material contains metal flakes or short metal fibers, and an edge portion of the collector sheet of the negative electrode is electrically connected to the battery case via a collector plate welded to the edge portion of the collector sheet.