Commonwealth Scientific and Industrial Research Organisation
대리인 / 주소
Nixon & Vanderhye P.C.
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97
초록▼
A lead-acid battery comprising: at least one lead-based negative electrode;at least one lead dioxide-based positive electrode;at least one capacitor electrode; andelectrolyte in contact with the electrodes; wherein a battery part is formed by the lead based negative electrode and the lead dioxide-b
A lead-acid battery comprising: at least one lead-based negative electrode;at least one lead dioxide-based positive electrode;at least one capacitor electrode; andelectrolyte in contact with the electrodes; wherein a battery part is formed by the lead based negative electrode and the lead dioxide-based positive electrode; and an asymmetric capacitor part is formed by the capacitor electrode and one electrode selected from the lead based negative electrode and the lead-dioxide based positive electrode; and wherein all negative electrodes are connected to a negative busbar, and all positive electrodes are connected to a positive busbar. The capacitor electrode may be a capacitor negative electrode comprising carbon and an additive mixture selected from oxides, hydroxides or sulfates of lead, zinc, cadmium, silver and bismuth, or a capacitor negative electrode comprising carbon, red lead, antimony in oxide, hydroxide or sulfate form, and optionally other additives. The capacitor electrode may be used in asymmetric capacitors and batteries of other types.
대표청구항▼
1. A hybrid battery-capacitor comprising: at least one battery-type positive electrode,at least one battery-type negative electrode,at least one capacitor-type electrode selected from a capacitor negative electrode and a capacitor positive electrode, wherein the capacitor negative electrode comprise
1. A hybrid battery-capacitor comprising: at least one battery-type positive electrode,at least one battery-type negative electrode,at least one capacitor-type electrode selected from a capacitor negative electrode and a capacitor positive electrode, wherein the capacitor negative electrode comprises a high surface area capacitor material and one or more additives selected from oxides, hydroxides or sulfates of lead, zinc, cadmium, silver and bismuth, and wherein the capacitor positive electrode comprises:a high surface area capacitor material,Pb2O3,an oxide, hydroxide or sulfate of antimony, andoptionally one or more additives selected from oxides, hydroxides and sulfates of iron and lead, andsulphuric acid electrolyte solution in contact with the electrodes,wherein a battery part is formed between the battery-type positive electrode and the battery-type negative electrode, and an asymmetric capacitor part is formed between the capacitor electrode and one of the battery-type electrodes,wherein one of the battery-type electrodes is shared by the battery part and the asymmetric capacitor part, andwherein the negative electrodes are in direct electrical connection to a first conductor, and the positive electrodes are in direct electrical connection to a second conductor. 2. The hybrid battery-capacitor of claim 1, wherein the battery-type positive electrode comprises an electrode material selected from lead dioxide, nickel oxide, silver oxide, manganese oxide, lithium polymer materials, mixed lithium oxides including lithium nickel oxides, lithium cobalt oxides, lithium manganese oxides and lithium vanadium oxides, and lithium conductive polymer cathode materials. 3. The hybrid battery-capacitor of claim 1, wherein the battery-type negative electrode comprises an electrode material selected from lead, zinc, cadium, metal hydrides, lithium in metal or alloy form with other metals such as aluminium, and lithium ion intercalation materials. 4. The hybrid battery-capacitor of claim 1, wherein the electrodes alternate between positive and negative electrodes. 5. The hybrid battery-capacitor of claim 1, wherein the high surface area material is a high surface area carbon material. 6. The hybrid battery-capacitor of claim 1, wherein the capacitor-type electrode is a capacitor negative electrode, and the additive includes at least one oxide, hydroxide or sulfate of lead or zinc. 7. The hybrid battery-capacitor of claim 6, wherein the additive is present in a coating on the capacitor negative electrode in an amount that increases the voltage window of the capacitor negative electrode to at least −1.2 V. 8. The hybrid battery-capacitor of claim 6, wherein the total additive content is between 5-40 wt %, based on the total capacitor coating composition. 9. The hybrid battery-capacitor of claim 6, wherein the negative capacitor electrode additive comprises compounds of the following metals in oxide, sulfate or hydroxide from: between 1-40 wt % Pb; 1-20 wt % Zn; 0-5 wt % Cd and 0-5 wt % Ag. 10. The hybrid battery-capacitor of claim 1, wherein the capacitor-type electrode is a capacitor positive electrode, and the capacitor positive electrode additive is present in an amount of 5-40 wt %. 11. The lead-acid battery of claim 10, wherein the positive capacitor electrode additive comprises between 0-30 wt % Pb in oxide, sulfate or hydroxide form, 1-10 wt % Pb203, 0-2 wt % Fe in oxide, sulfate or hydroxide form and 0.05 to 1 wt % Sb in oxide, sulfate or hydroxide form. 12. The hybrid battery-capacitor of claim 1, wherein the hybrid battery-capacitor comprises both a capacitor positive electrode and a capacitor negative electrode. 13. The hybrid battery-capacitor of claim 1, wherein each of the positive and negative electrodes is separated from adjacent electrodes by porous separators. 14. A lead-acid battery comprising an alternating series of positive and negative electrodes and an electrolyte in contact with the electrodes, wherein: at least one pair of positive and negative electrodes or electrode regions store energy capacitively, and one of said electrodes or regions comprises capacitor electrode material;at least one pair of lead dioxide positive and lead negative battery electrodes or electrode regions store energy electrochemically,the electrolyte is a sulfuric acid electrolyte solution,and wherein the positive electrodes are directly connected by a first conductor and the negative electrodes are directly connected by a second conductor.
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