US1450565A - Secondary or storage battery - Google Patents

Secondary or storage battery Download PDF

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Publication number
US1450565A
US1450565A US532727A US53272722A US1450565A US 1450565 A US1450565 A US 1450565A US 532727 A US532727 A US 532727A US 53272722 A US53272722 A US 53272722A US 1450565 A US1450565 A US 1450565A
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Prior art keywords
tube
asbestos
rubber
active material
storage battery
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Expired - Lifetime
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US532727A
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Edward W Smith
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/76—Containers for holding the active material, e.g. tubes, capsules
    • H01M4/765—Tubular type or pencil type electrodes; tubular or multitubular sheaths or covers of insulating material for said tubular-type electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention is confined to such plates in which the tubes consist of hard rubber, and in which the necessaryV porosity is secured by a large number of saw slots placed very close together.
  • the present invention has for its object the virtual elimination of that source ot failure, and this is accomplished by means cfa lining of asbestos in the forni .of paper within the slotted rubber tube. rlhe thin asbestos in the form of paper, may con-l veniently be formed into 'a tube and slipped into the slotted rubber tube, or may be deposited4 from a water emulsion ⁇ in a thin layendirectly upon the inner surface of the slot-ted tube.
  • Figs.: 4 and 5 represent respectively side and end views of ⁇ a modiied tube unit.
  • 6 is a central metallic conducting and supporting core, by means of which the whole lunit is united to the rest 'of the plate, in a manner well known to those versed in vthe ⁇ art, 5 is the active material, consisting 'of Serial No. 532,727.
  • the tube as illustrated, consists of solid, uncut,longitudinal strips or ribs 3 and semi-circular rings 2 formed by making a number of saw cuts through the wall ofthe original solid walled tube.
  • Between the active material 5 and the rings of the tube 2. is the thin layer or tube of asbestos in the form of paper 1 finely porous throughout. but without the saw cuts,
  • FigsA land 2 the asbestos protecting layer in the form of paper is shown turned back slightl)v over the end of the tube at 7 for the purpose of insuring that none of the rubber t-ubc at its end shall be left unprotected.
  • Figs. 4 and 5 the unit differs in that the longitudinal strips are entirely lacking, and the retaining tube consists merely of a number of thin rings 2?, placed close toget her, and surrounding the protecting layer l of asbestos in the form of paper and the active material 5.
  • the invention involves in thecombination not only the selection of particular materials, asbestos and rubber, from amongv other materials heretofore used or suggested but also the selection or the form 'of aper and the form of a slotted tube vin which to embody those materials and it will be also understood that by the described selection of og'm and inaterial a long existing defect arising from the chemical action of the active material on tbe bars between the slots is corrected.
  • battery plate of tubular type the Combination of rubber in the form of a slotted tube and of asbestos in tbe form of paper arranged inside of and lining said tube with artive material and a metallic central supporting core also arranged in tlio tube, wbereb) rubber in the Jform stated is protected b v tbe asbestos in tbe form Set fortb from tbe rbemieal action of tbe artire material.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Description

Apr. 3, 1923. 1,450,565
g E. W. SMITH SEONDARY OR STORAGE BATTERY Fi led Jan. 30 1922 Patented Apr, 3i, i923.
entre srArEs "PATENT OFFICE.
EDWARD W. SMITH, 0F PHILADELPHIA, PENNSYLVANIA.
SECONDARY OR- STORAGE BATTERY.
Application led January 30, 1922.
taining the active material and metallic cores which act as conductors, and of a frame to unite the various tubes into a single unit.' However the invention is confined to such plates in which the tubes consist of hard rubber, and in which the necessaryV porosity is secured by a large number of saw slots placed very close together.
It is found in practice that, though far c moredurablethan. other typessuchy a slotted rubber plate is subject to wear chiefly in the slow oxidation of the rubber tube from within, so that in time it becomes thinner and thinner, and eventually fails entirely.
The present invention has for its object the virtual elimination of that source ot failure, and this is accomplished by means cfa lining of asbestos in the forni .of paper within the slotted rubber tube. rlhe thin asbestos in the form of paper, may con-l veniently be formed into 'a tube and slipped into the slotted rubber tube, or may be deposited4 from a water emulsion `in a thin layendirectly upon the inner surface of the slot-ted tube.
The invention may be more readily understood by reference to the accompanying drawings in which Figures l, Q and 3 represent respectively side views and an end view of a tube torming one unit of a battery plate, and
Figs.: 4 and 5 represent respectively side and end views of `a modiied tube unit.
Referring more especially to Figs. l to 3, 6 is a central metallic conducting and supporting core, by means of which the whole lunit is united to the rest 'of the plate, in a manner well known to those versed in vthe `art, 5 is the active material, consisting 'of Serial No. 532,727.
lead peroxide in the usual type of lead battery, while. 2 is the encircling slotted rubber tube, which acts as a retainer for the active material which in it'seltl is possessed of but little cohesion. The tube, as illustrated, consists of solid, uncut,longitudinal strips or ribs 3 and semi-circular rings 2 formed by making a number of saw cuts through the wall ofthe original solid walled tube. Between the active material 5 and the rings of the tube 2. is the thin layer or tube of asbestos in the form of paper 1 finely porous throughout. but without the saw cuts,
and therefore constituting a continuous tube the whole length of the unit.
In FigsA land 2 the asbestos protecting layer in the form of paper is shown turned back slightl)v over the end of the tube at 7 for the purpose of insuring that none of the rubber t-ubc at its end shall be left unprotected.
In Figs. 4 and 5 the unit differs in that the longitudinal strips are entirely lacking, and the retaining tube consists merely of a number of thin rings 2?, placed close toget her, and surrounding the protecting layer l of asbestos in the form of paper and the active material 5. a
It will be remarked that the selection of asbestos in the form of paper and rubber in the forni of slotted tubes prevents contact between the active material and the small retaining portions of Vthe tube between the slots, and thus protects those small portions 'of the tube from the chemical action of the active material'. which tends to disinte ate them from the interior of the tube whi e at the same time the asbestos in paper form bridges across the minute openings of the ysaw slots thus very perfectly retaining the active material in place.
It will be readily understood that the invention involves in thecombination not only the selection of particular materials, asbestos and rubber, from amongv other materials heretofore used or suggested but also the selection or the form 'of aper and the form of a slotted tube vin which to embody those materials and it will be also understood that by the described selection of og'm and inaterial a long existing defect arising from the chemical action of the active material on tbe bars between the slots is corrected.
I claim:
ln a storage. battery plate of tubular type the Combination of rubber in the form of a slotted tube and of asbestos in tbe form of paper arranged inside of and lining said tube with artive material and a metallic central supporting core also arranged in tlio tube, wbereb) rubber in the Jform stated is protected b v tbe asbestos in tbe form Set fortb from tbe rbemieal action of tbe artire material.
luDlVARD W. SMITH.
US532727A 1922-01-30 1922-01-30 Secondary or storage battery Expired - Lifetime US1450565A (en)

Priority Applications (1)

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US532727A US1450565A (en) 1922-01-30 1922-01-30 Secondary or storage battery

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874203A (en) * 1955-10-03 1959-02-17 Accumulatoren Fabrik Ag Fa Separator and electrode assembly for storage batteries and the like
DE1095901B (en) * 1957-09-02 1960-12-29 Peter J Moll Electrode for electrical collectors in which the active material is surrounded by a perforated tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874203A (en) * 1955-10-03 1959-02-17 Accumulatoren Fabrik Ag Fa Separator and electrode assembly for storage batteries and the like
DE1095901B (en) * 1957-09-02 1960-12-29 Peter J Moll Electrode for electrical collectors in which the active material is surrounded by a perforated tube

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