Lead-acid battery design having versatile form factor
First Claim
1. A rechargeable electrochemical storage device, comprising:
- one or more pseudo-bipolar layer electrodes without seals, wherein;
each pseudo-bipolar layer electrode includes a first half electrode, a second half electrode, and a conductive substrate,the first half electrode and the second half electrode have opposite polarities,the first half electrode and the second half electrode each have a partial circular shape,the first half electrode is disposed on a first portion of the conductive substrate,the second half electrode is disposed on a second portion of the conductive substrate that is substantially non-overlapping with the first portion of the conductive substrate so that the first half electrode is circumferentially offset from the second half electrode,the first half electrode and the second half electrode are electrically connected by a third portion of the conductive substrate between the first portion and the second portion, andthe third portion of the conductive substrate includes a hydrophobic coating to prevent ionic transfer between the first half electrode and the second half electrode;
a first electrochemical cell including the first half electrode of one of the one or more pseudo-bipolar layer electrodes, anda second electrochemical cell including the second half electrode of one of the one or more pseudo-bipolar layer electrodes;
a first terminal electrode having a partial circular shape overlapped with the first half electrode of one of the one or more pseudo-bipolar layer electrodes and coupled to the first half electrode of one of the one or more pseudo-bipolar layer electrodes through a first separator, the first separator providing ionic transfer therebetween; and
a second terminal electrode having a partial circular shape overlapped with the second half electrodes of one of the one or more pseudo-bipolar layer electrodes and coupled to the second half electrode of one of the one or more pseudo-bipolar layer electrodes through a second separator, the second separator providing ionic transfer therebetween.
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Accused Products
Abstract
An electrochemical storage device comprises a plurality of layer electrodes each including a first charged sector and a second charged sector. The plurality of layer electrodes are assembled with respect to each other such that the first charged sector of a first plate of the plurality of layer electrodes is laid below the second charged sector of a second plate of the plurality of layer electrodes located immediately above the first plate. The charges of the first charged sectors of the first and second plates have a first sign and the charges of the second charged sectors of the first and second plates have a second sign that is opposite the first sign. The device also comprises a separator sector located, and enabling ionic charge exchange, between the first charged sector of the first plate and the second charged sector of the second plate.
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Citations
18 Claims
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1. A rechargeable electrochemical storage device, comprising:
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one or more pseudo-bipolar layer electrodes without seals, wherein; each pseudo-bipolar layer electrode includes a first half electrode, a second half electrode, and a conductive substrate, the first half electrode and the second half electrode have opposite polarities, the first half electrode and the second half electrode each have a partial circular shape, the first half electrode is disposed on a first portion of the conductive substrate, the second half electrode is disposed on a second portion of the conductive substrate that is substantially non-overlapping with the first portion of the conductive substrate so that the first half electrode is circumferentially offset from the second half electrode, the first half electrode and the second half electrode are electrically connected by a third portion of the conductive substrate between the first portion and the second portion, and the third portion of the conductive substrate includes a hydrophobic coating to prevent ionic transfer between the first half electrode and the second half electrode; a first electrochemical cell including the first half electrode of one of the one or more pseudo-bipolar layer electrodes, and a second electrochemical cell including the second half electrode of one of the one or more pseudo-bipolar layer electrodes; a first terminal electrode having a partial circular shape overlapped with the first half electrode of one of the one or more pseudo-bipolar layer electrodes and coupled to the first half electrode of one of the one or more pseudo-bipolar layer electrodes through a first separator, the first separator providing ionic transfer therebetween; and a second terminal electrode having a partial circular shape overlapped with the second half electrodes of one of the one or more pseudo-bipolar layer electrodes and coupled to the second half electrode of one of the one or more pseudo-bipolar layer electrodes through a second separator, the second separator providing ionic transfer therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A rechargeable electrochemical storage device, comprising:
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a first electrochemical cell and a second electrochemical cell disposed in a common casing and each comprising a first half electrode and a second half electrode of opposite polarities, each of the first half electrode and the second half electrode of each electrochemical cell being sealless and having a partial circular shape; a first separator disposed between the first half electrode and the second half electrode of the first electrochemical cell, wherein the first separator includes an ionically conductive medium providing ionic transfer between the first half electrode and the second half electrode of the first electrochemical cell; a second separator disposed between the first half electrode and the second half electrode of the second electrochemical cell, wherein the second separator includes an ionically conductive medium providing ionic transfer between the first half electrode and the second half electrode of the second electrochemical cell; and a common current collector including a first portion coupled with the first half electrode of the first electrochemical cell and a second portion coupled with the second half electrode of the second electrochemical cell, wherein the second portion is substantially non-overlapping with the first portion so that the first half electrode of the first electrochemical cell is circumferentially offset from the second half electrode of the second electrochemical cell, wherein the common current collector includes a third portion between the first portion and the second portion, the third portion electrically connecting the first half electrode of the first electrochemical cell and the second half electrode of the second electrochemical cell, and the third portion of the current connector further including a hydrophobic coating configured to prevent ionic transfer between the first half electrode and the second half electrode, and wherein the first half electrode of the first electrochemical cell, the second half electrode of the second electrochemical cell, and the common current collector form a sealless pseudo-bipolar electrode plate of a circular or partial circular shape. - View Dependent Claims (11, 12, 13)
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14. A rechargeable electrochemical storage device, comprising:
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one or more sealless pseudo-bipolar layer electrodes, wherein; each sealless pseudo-bipolar layer electrode includes a first half electrode, a second half electrode, and a conductive substrate, the conductive substrate includes a first planar portion, a second planar portion, and a third planar portion between the first planar portion and the second planar portion; the first half electrode and the second half electrode have opposite polarities, the first half electrode is disposed on the first planar portion of the conductive substrate, the second half electrode is disposed on the second planar portion of the conductive substrate, the first half electrode and the second half electrode are electrically connected by the third portion of the conductive substrate, and the third portion of the conductive substrate includes a hydrophobic coating configured to prevent ionic transfer between the first half electrode and the second half electrode; a first electrochemical cell including the first half electrode of one of the one or more sealless pseudo-bipolar layer electrodes;
a second electrochemical cell including the second half electrode of one of the one or more sealless pseudo-bipolar layer electrodes;a first terminal electrode overlapped with the first half electrode of one of the one or more sealless pseudo-bipolar layer electrodes and coupled to the first half electrode of one of the one or more sealless pseudo-bipolar layer electrodes through a first separator, the first separator providing ionic transfer therebetween; and a second terminal electrode overlapped with the second half electrodes of one of the one or more sealless pseudo-bipolar layer electrodes and coupled to the second half electrode of one of the one or more sealless pseudo-bipolar layer electrodes through a second separator, the second separator providing ionic transfer therebetween. - View Dependent Claims (15, 16, 17, 18)
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Specification