The present invention generally relates to batteries. More specifically, the present invention relates to end plates of jelly roll of battery materials.
In a preferred embodiment, multiple extensions arising along one edge of metal foil electrode, each comprise rectangular flat portions of conductive material. In a preferred embodiment, said electrode is within jelly roll of battery materials. In a preferred embodiment, end plate of said jelly roll of battery materials is assembled by winding said battery materials around a central axis.
In a preferred embodiment, said end plate is located at one end of cylinder of wound jelly roll of battery materials. In a preferred embodiment, said end plate comprises compact assembly of face-to-face shingled overlapping electrode extensions. As to definitions, a face of an electrode extension is herein defined as one of the flat sides of an electrode extension, as opposed to edge of electrode extension. Face-to-face overlap of an electrode extension is herein defined as a flat surface or face of a first electrode extension directly applied to, i.e. overlapped as a shingle onto, a flat surface of at least one other electrode extension.
It is understood that a battery supplies energy to an external circuit via electron flow. In a preferred embodiment, assembly of compact end plate at end of jelly roll of battery materials facilitates such energy supply to external circuit. In a preferred embodiment, such energy supply comprises electron flow enabled by electron pathways comprised in compact end plate. Said electron pathways are enabled by maintaining the compactness of the end plate. The integrity of the end plate electrical connections, such as those comprised in face-to-face shingled overlaps of electrode extensions, is maintained by compactness of the end plate.
In a preferred embodiment, assembled end plate is enabled to maintain its compactness by means herein disclosed. Said compactness secures electrical connections and electron paths, such as between end plate's electrode extensions and the battery cap.
In a preferred embodiment, such compactness is secured at least by fold-over tabs applied at the periphery of the end plate. In a preferred embodiment, said fold-over tabs are comprised in connection to a circumferential band of metal applied to end plate. Such tabs are in effect extensions, but for sake of clarity, the term tab will be used herein for these fold-over elements.
In a preferred embodiment, said fold-over tabs arise from and comprise a circumferential band of metal surrounding the jelly roll end plate. It is understood that such a band can be affixed as a single part to said end plate. Optionally the affixing of circumferential band can start with band disposed as two parts. One part each from opposite sides of end plate can be applied, then joined. In a preferred embodiment, placement of said hand is guided by automated machine, optionally laser enabled.
In a preferred embodiment, said halves of band are joined at end plate and locked into place via use of automated crimping machine. In a preferred embodiment, said crimping secures together the two parts of the band at the end plate, by overlapping of fold-over tabs from one half of the band onto fold-over tabs of other half. Such interlocking of tabs secures band into place at end plate in the two-piece band configuration.
In a preferred embodiment, the circumferential band is comprised as part of a full jacket or cylindrical case into which the jelly roll after winding is placed. Said folded over tabs of circumferential band, whether comprised as a free-standing band or part of a jacket or cylindrical case, extend over top of end plate periphery when folded over, there serving to maintain the integrity of electrical connections within, and compactness of, the end plate. In a preferred embodiment, such maintaining preserves the face-to-face shingle overlapping of the end plate electrode extensions. In a preferred embodiment, such maintaining preserves the electron paths for end plate to external circuit. Maintaining a plurality of electron paths within a battery mitigates against overheating of battery.
U.S. Pat. No. 10,800,434 to Beecham is herein incorporated in its entirety, at least by reference.
Other features and advantages of the present invention will become apparent when the following detailed description is read in conjunction with the accompanying drawings, in which:
In
In
Continuing at the left side of
The band with its at least seven tabs of fold-over type, when applied to the periphery of the top of the end plate, secure the end plate from unraveling. The compactness of the end plate thus secured in place by said tabs and circumferential band, said compactness enables maintaining of end plate's face-tip-face shingled overlaps of electrode extensions. Said compactness further assists in maintaining the overlapped extensions' associated electron paths. In a preferred embodiment, machinery (not shown) enables automated attachment of said band to the end plate. In a preferred embodiment, said automated application to end plate of the band, comprises folding over on the end plate periphery the at least seven tabs of fold-over type.
It a preferred embodiment, the most peripheral extensions on the jelly roll comprise the said fold-over tabs, rather than said tabs arising from a separate circumferential band. In a preferred embodiment, said most peripheral at least seven electrode extensions serving as said tabs, when folded over top of end plate at its periphery, accomplish the securing of compactness of end plate, and accomplish the maintaining of electron paths within end plate. In a preferred embodiment, said fold-over tabs, in maintaining of end plate compactness and face-to-face overlaps of electrode extensions, promote the useful life of the battery while mitigating against heat buildup during battery operations. Such maintaining of compactness and electrical connection integrity, whether by circumferential band or by use as fold-over tabs of extensions of electrode, such maintaining is to the benefit of efficiency of battery during useful life.
It is to be understood that the illustrated uniformity of alignment of ends of overlapped electrode extensions, at left side of
In
In a preferred embodiment, at least one step in the sequence of battery assembly of instant invention is enabled by machinery. For example, the winding of jelly rolls of instant invention is performed typically by at least one machine comprised of a motorized bobbin. Furthermore, for example, the end plate comprised from such winding receives circumferential band by machine-enabled attaching. Furthermore, for example, the folding down of the peripheral fold-over tabs, whether tabs of a circumferential band or tabs of jelly roll electrode extension type, said folding down is typically enabled by machine, as is the attaching of a band if used.
In a preferred embodiment, essentially the full periphery of end plate circumferential band is endowed with fold-over tabs. Although the fold-over tabs in
Although the invention has been described in considerable detail in language specific to structural features, and or method acts, it is to be understood that the invention defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as exemplary preferred forms of implementing the claimed invention. Stated otherwise, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting. Therefore, while exemplary illustrative embodiments of the invention have been described, numerous variations and alternative embodiments will occur to those skilled in the art. Such variations and alternate embodiments are contemplated and can be made without departing from the spirit and scope of the invention.
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.
The present invention claims priority to non-provisional application Ser. No. 17/092,035 filed 6 Nov. 2020 by instant inventor, entitled ELECTRODE EXTENSION OVERLAP CONFIGURATIONS IN BATTERY, which claims priority to non-provisional application Ser. No. 17/064,243 filed 6 Oct. 2020 by instant inventor, entitled ELECTRIC VEHICLE BATTERY PACKS COMPRISING TABLESS/MULTI-TAB CYLINDRICAL JELLY-ROLL STYLE BATTERY CELLS, which claims priority to non-provisional application Ser. No. 17/033,853 filed 27 Sep. 2020 by instant inventor, entitled ELECTRIC VEHICLE SAFETY AS TO SIDE COLLISIONS AND BATTERY PACK PLACEMENT IN MANUFACTURING, which claims priority to non-provisional application Ser. No. 16/867,273 filed 5 May 2020 by instant inventor, entitled A METHOD AND SYSTEM FOR MITIGATING ANTICIPATED RISKS IN SELF-DRIVING VEHICLES VIA USE OF MALICIOUS ROADWAY FALSIFIED APPEARANCES now issued U.S. Pat. No. 10,800,434 of 13 Oct. 2020, which claims priority to provisional application Ser. No. 62/2986682 filed Mar. 7, 2020, hereby each referenced publication is incorporated in its et at least by reference.
Number | Date | Country | |
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62986682 | Mar 2020 | US |
Number | Date | Country | |
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Parent | 17092035 | Nov 2020 | US |
Child | 17102226 | US | |
Parent | 17064243 | Oct 2020 | US |
Child | 17092035 | US | |
Parent | 17033853 | Sep 2020 | US |
Child | 17064243 | US | |
Parent | 16867273 | May 2020 | US |
Child | 17033853 | US |