The Furukawa Battery Co., Ltd.

Commonwealth Scientific and Industrial Research Organisation

Daisuke Monma

Jun Furukawa

Toshimichi Takada

Lan Trieu Lam

Hidetoshi Abe

Nigel Peter Haigh

Rosalie Louey

Tetsuya Kanou

Satoshi Shibata

Yuichi Akasaka

Akira Dobashi

Yosuke Masuda

The present invention generally relates to electrodes for use in lead-acid battery systems, batteries and electrical storage devices thereof, and methods for producing the electrodes, batteries and electrical storage devices. In particular, the electrodes comprise active battery material for a lead-acid storage battery, wherein the surface of the electrode is provided with a coating layer comprising a carbon mixture containing composite carbon particles, wherein each of the composite carbon particles comprises a particle of a first capacitor carbon material combined with particles of a second electrically conductive carbon material. The electrical storage devices and batteries comprising the electrodes are, for example, particularly suitable for use in hybrid electric vehicles requiring a repeated rapid charge/discharge operation in the PSOC, idling-stop system vehicles, and in industrial applications such as wind power generation, and photovoltaic power generation.

Electrode and electrical storage device for lead-acid system

A lead-acid battery comprising: &#x2014;at least one negative electrode comprising lead-based battery electrode material and at least one region of capacitor material overlying the lead-based battery electrode material, each electrode being in electrical connection to an outer terminal of the battery, and &#x2014;at least one positive lead-dioxide based battery electrode, each positive electrode being in electrical connection to a second outer terminal of the battery, &#x2014;separator interleaving the facing electrodes; &#x2014;electrolyte filling at least the space of the electrodes and separators wherein the capacitor material overlying the lead-based battery electrode material comprises 20-65% by weight of a high electrical conductivity carbonaceous material, 30-70% of a high specific surface area carbonaceous material, at least 0.1% lead and binder.

Optimised energy storage device having capacitor material on lead based negative electrode

There is disclosed a lead storage battery comprising a group of plates housed in a battery jar, and an electrolyte injected therein to impregnate the group of plates with the electrolyte, thus performing formation treatment, the lead storage battery being adapted to be used in a partial state of charge where the state of charge is confined within the range of more than 70% to less than 100%, wherein the group of plates are formed of a stack constituted by a large number of negative substrates comprising grid substrates filled with a negative active material, by a large number of positive substrates comprising grid substrates filled with a positive active material, and by a porous separator interposed between the negative electrodes and positive electrodes, and the electrolyte contains at least one kind of ion selected from the group consisting of aluminum ions, selenium ions and titanium ions.

Lead storage battery and manufacturing method of the same

Growing community of inventors

Fukushima, Japan

Daisuke Monma