Patent US4353969A successfully refreshed from Google Patents.
US4353969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quasi-bipolar battery construction and method of fabricating
Assignee: California Institute of Technology
•
Filing: 1980-10-09
•
Granted: 1982-10-12
•
Expires: 2000-10-09
Abstract
Abstract A lightweight, battery construction for lead acid batteries in which biplates are formed from a continuous strip of thermoplastic material, one face of the strip being provided with a plurality of electrically isolated lead strip arrays, each having a transverse axis about which the strip is folded or pleated to provide pleated biplate walls. The pleated continuous strip is sealed along edge longitudinal portions to provide chambers for receiving a plurality of non-conductive thermoplastic separator-plates and to contain electrolyte liquid. Separator-plates support resilient yieldable porous glass mats and scrim fabric in which active material is carried. The assembly of pleated biplates and separator-plates is maintained in pressure relation by exterior resilient means. A method of making such a continuous pleated biplate construction and of assembling one or more battery modules which may be connected in series or in parallel. A biplate construction having continuously wound lead stripes attached to a substrate.
Inventors
- 👤 Wally E. Rippel
- 👤 Dean B. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:34
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M10/00; H01M10/04; H01M10/0413; H01M10/06; H01M10/18; H01M50/00; H01M50/40; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
85 words
A battery construction comprising: integral frameless biplate means including spaced biplate walls having top edge faces and oppositely directed side faces, side walls, and bottom walls defining a chamber therebetween, lead stripes on both side faces, each stripe on one side face being connected at the top edge face with stripes on the other side face; a separator-plate carrying active material on opposite faces thereof received within each chamber; and means to compress and to retain said biplate means and separator-plates in assembled pressure relation.
Claim 2
Dependent Claim
85 words
A battery construction comprising: integral frameless biplate means including spaced biplate walls having top edge faces and oppositely directed side faces, side walls, and bottom walls defining a chamber therebetween, lead stripes on both side faces, each stripe on one side face being connected at the top edge face with stripes on the other side face; a separator-plate carrying active material on opposite faces thereof received within each chamber; and means to compress and to retain said biplate means and separator-plates in assembled pressure relation.
Claim 3
Dependent Claim
19 words
In a construction as stated in claim 1 including scrim fabric means on each separator-plate holding said active material.
Claim 4
Dependent Claim
45 words
A construction as stated in claim 1 wherein said integral biplate means include a continuous pleated strip of thermoplastic material, said lead stripes on both faces of each pleated biplate wall being electrically isolated from the lead stripes on opposed biplate walls of a chamber.
Claim 5
Dependent Claim
22 words
A construction as stated in claim 1 wherein said spaced biplate walls are pleated portions of a continuous strip of thermoplastic material.
Claim 6
Dependent Claim
37 words
In a construction as stated in claim 1 including: conductive end plates for said assembly; said means to compress and retain said biplate means and separator-plates in assembled pressure relation including resilient means interconnecting said end plates.
Claim 7
Dependent Claim
57 words
A biplate construction comprising a continuous strip of thermoplastic material formed into spaced pleats; lead stripe arrays on opposite faces of said pleats and electrically isolated from arrays on adjacent pleats; longitudinal edge portions of said continuous strip being sealed between said pleats to provide walls of chambers adapted to receive separator-plates and to contain electrolyte liquid.
Claim 8
Dependent Claim
57 words
A biplate construction comprising a continuous strip of thermoplastic material formed into spaced pleats; lead stripe arrays on opposite faces of said pleats and electrically isolated from arrays on adjacent pleats; longitudinal edge portions of said continuous strip being sealed between said pleats to provide walls of chambers adapted to receive separator-plates and to contain electrolyte liquid.
Claim 9
Dependent Claim
27 words
A construction as stated in claim 6 wherein an array on one face of a pleat has fewer lead stripes than the other face of said pleat.
Claim 10
Dependent Claim
27 words
A construction as stated in claim 6 wherein the array on one face of a pleat having lead stripes intersecting other lead stripes on said one face.
Claim 11
Dependent Claim
44 words
A construction as stated in claim 6 wherein said lead stripe arrays on opposite faces of each pleat have different amounts of lead, and a lead stripe along the edge face of said pleat interconnecting said lead stripe arrays of different amounts of lead.
Claim 12
Dependent Claim
28 words
A construction as stated in claim 6 including a continuous covering of an electrochemically stable resin on the face of said continuous strip provided with said lead stripes.
Claim 13
Dependent Claim
42 words
A separator-plate for a battery construction comprising: a microporous sheet of synthetic organic resin; a porous layer on each face of said separator-plate; a scrim fabric adjacent to and bonded to said porous layer; and active material carried by said scrim fabric.
Claim 14
Dependent Claim
42 words
A separator-plate for a battery construction comprising: a microporous sheet of synthetic organic resin; a porous layer on each face of said separator-plate; a scrim fabric adjacent to and bonded to said porous layer; and active material carried by said scrim fabric.
Claim 15
Dependent Claim
63 words
In a quasi-bipolar battery construction, the combination of: a frameless biplate means comprising a continuous folded flexible strip of non-conductive thermoplastic material having spaced electrically isolated arrays of lead stripes on one face of said folded strip; longitudinal edge portions of said strip along said folds being sealed to define chambers adapted to receive separator-plates carrying active material and to contain electrolyte liquid.
Claim 16
Dependent Claim
63 words
In a quasi-bipolar battery construction, the combination of: a frameless biplate means comprising a continuous folded flexible strip of non-conductive thermoplastic material having spaced electrically isolated arrays of lead stripes on one face of said folded strip; longitudinal edge portions of said strip along said folds being sealed to define chambers adapted to receive separator-plates carrying active material and to contain electrolyte liquid.
Claim 17
Dependent Claim
75 words
A battery means comprising: a plurality of battery modules, each battery module comprising a continuous biplate strip having folded pleats and having electrically isolated spaced lead stripe arrays on faces of said pleats, edge portions of said pleats being sealed to form chambers; separator-plates carrying active material in each chamber; terminal plates at ends of each module for connecting terminal plates thereof in parallel; and means for holding said modules in assembly and under compression.
Claim 18
Dependent Claim
75 words
A battery means comprising: a plurality of battery modules, each battery module comprising a continuous biplate strip having folded pleats and having electrically isolated spaced lead stripe arrays on faces of said pleats, edge portions of said pleats being sealed to form chambers; separator-plates carrying active material in each chamber; terminal plates at ends of each module for connecting terminal plates thereof in parallel; and means for holding said modules in assembly and under compression.
Claim 19
Dependent Claim
50 words
A battery means as stated in claim 13 wherein said means for holding said battery modules under compression and in assembly include conductive end pressure plates at ends of end modules; and resilient means extending between and interconnecting said end pressure plates for holding said modules in assembled pressure relationship.
Claim 20
Dependent Claim
16 words
A battery means as stated in claim 12 wherein said battery modules are arranged in tandem.
Claim 21
Dependent Claim
89 words
A multiple module battery construction including a common biplate structure comprising a continuous integral biplate strip providing spaced pleated biplate walls having electrically isolated lead stripe arrays thereon and providing chambers to contain electrolyte liquid; separator-plates supporting active material received within a selected group of adjacent chambers; a terminal plate received within a chamber located between said adjacent groups of chambers; conductive end and pressure plates at ends of said biplate structure; and means holding said biplate structure, separator-plates, terminal plates, and end plates in assembly and under compression.
Claim 22
Dependent Claim
89 words
A multiple module battery construction including a common biplate structure comprising a continuous integral biplate strip providing spaced pleated biplate walls having electrically isolated lead stripe arrays thereon and providing chambers to contain electrolyte liquid; separator-plates supporting active material received within a selected group of adjacent chambers; a terminal plate received within a chamber located between said adjacent groups of chambers; conductive end and pressure plates at ends of said biplate structure; and means holding said biplate structure, separator-plates, terminal plates, and end plates in assembly and under compression.
Claim 23
Dependent Claim
84 words
A biplate construction for a battery comprising a biplate of thermoplastic material having top, bottom, and side edge portions and oppositely directed flat surfaces; a lead stripe filament extending continuously along said flat surfaces and over and under said top and bottom edge portions; and a frame of thermoplastic material receiving at least said bottom and side edge portions of said biplate, thermally bonded thereto, and covering in sealed relation a portion of said lead stripe at said bottom edge portion of the biplate.
Claim 24
Dependent Claim
84 words
A biplate construction for a battery comprising a biplate of thermoplastic material having top, bottom, and side edge portions and oppositely directed flat surfaces; a lead stripe filament extending continuously along said flat surfaces and over and under said top and bottom edge portions; and a frame of thermoplastic material receiving at least said bottom and side edge portions of said biplate, thermally bonded thereto, and covering in sealed relation a portion of said lead stripe at said bottom edge portion of the biplate.
Claim 25
Dependent Claim
15 words
A biplate construction as stated in claim 16 wherein said lead stripe filament is flat.
Claim 26
Dependent Claim
26 words
A biplate construction as stated in claim 16 including adhesive means on one side of said lead stripe filament for attaching said filament to said biplate.
Claim 27
Dependent Claim
18 words
A biplate construction as stated in claim 16 wherein said lead stripe filament is of circular cross section.
Claim 28
Dependent Claim
17 words
A biplate construction as stated in claim 20 wherein said lead stripe filament includes a fiberglass core.
Claim 29
Dependent Claim
101 words
In a battery construction including a plurality of separator-plates carrying active material on opposite faces thereof, casing means of thermoplastic material, and external means for maintaining said battery construction under compression, the provision of: a plurality of biplates, each biplate being of thermoplastic material, a plurality of spaced lead stripe filaments, each filament being wound continuously around said biplate and attached thereto, and a frame of thermoplastic material receiving edge portions of said biplate, thermally bonded thereto, and covering said lead stripe filament at one of the biplate edge portions; said frames of said biplates being secured to said casing means.
Claim 30
Dependent Claim
101 words
In a battery construction including a plurality of separator-plates carrying active material on opposite faces thereof, casing means of thermoplastic material, and external means for maintaining said battery construction under compression, the provision of: a plurality of biplates, each biplate being of thermoplastic material, a plurality of spaced lead stripe filaments, each filament being wound continuously around said biplate and attached thereto, and a frame of thermoplastic material receiving edge portions of said biplate, thermally bonded thereto, and covering said lead stripe filament at one of the biplate edge portions; said frames of said biplates being secured to said casing means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |