US1398065A - Method of preparing storage-battery separators - Google Patents

Method of preparing storage-battery separators Download PDF

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Publication number
US1398065A
US1398065A US444736A US44473621A US1398065A US 1398065 A US1398065 A US 1398065A US 444736 A US444736 A US 444736A US 44473621 A US44473621 A US 44473621A US 1398065 A US1398065 A US 1398065A
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US
United States
Prior art keywords
wood
lead
battery separators
preparing storage
separators
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US444736A
Inventor
Campbell C Carpenter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Light and Heat Corp
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US Light and Heat Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to US444736A priority Critical patent/US1398065A/en
Application granted granted Critical
Publication of US1398065A publication Critical patent/US1398065A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/429—Natural polymers
    • H01M50/4295—Natural cotton, cellulose or wood
    • 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 present invention relates to methods of preparing storage battery separators.
  • An object of the present invention is to devise a method for removing harmful constituents from wood, which method will be effective and cheap.
  • a further object is to provide a method for treating wood in the preparation of separators which will not weaken the structure of the wood.
  • pieces of wood which have been cut substantially to the thickness required for st rage battery separators are treated with a solution of lead compounds whereb'y those-substances in the wood which attack lead may have an opportunity to combine with the lead inthis solution.
  • the wood be given a preliminary treatment to open the pores. This preliminary treatment may be accomplished by soaking the wood in water, or by treating with steam, for a sufficient length of time to open the pores.
  • soluble lead compounds which may be used, as for instance, lead fluosilicate, lead chlorid, sodium plumbate, and many others.
  • the solution may be used hot or cold, depending upon the nature of the lead salt used, as certain lead salts will, of necessity, have to be used hot binations formed by the chemical reaction may be washed from the wood with water, after which said wood is ready for service as a storage battery separator.
  • humid steam may be used.
  • Pieces of wood may be stacked in a steam chest with lead compounds in powdered form or paste form placed between said pieces of wood.
  • the wood, with the lead compounds will be enveloped in an atmosphere of humid steam, which will open the pores of the wood and dissolve the lead compounds.
  • Said lead compounds will combine with those constituents of the wood which attack lead, the resulting products of which combination will trickle away from the thus opening up the pores, then treated with lead compounds in powdered or paste form,
  • the resulting compounds may then be removed in any preferred way, for instance, by washing with water orby treatin with steam.

Description

UNITED STATES PATENT OFFICE. I
CAMPBELL C. CARPENTER, 0F NIAGARA FALLS, NEW YORK, ASSIGNOR TO U. S. LIGHT & HEAT CORPORATION, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF NEW Patented Nov. 22,1921.
YORK.
METHOD OF PREPARING STORAGE-BATTERY SEPARATORS.
1,398,065, Specification of Letters Patent.
No Drawing. Application filed February 14, 1921. Serial No. 444,736.
To all whom it may concern:
Be it known that I, CAMPBELL C. CAR- PENTER, a citizen of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented new and useful Improvements in Methods of Preparing Storage- Battery Separators, of which the 'following is a specification.
The present invention relates to methods of preparing storage battery separators.
Various means have been devised for separating the plates in a storage battery cell. 00d separators are commonly used for this purpose, but most woods, which are suitable for the purpose, contain certain substances which in service react with the lead in the cell in a harmful way. Various methods have been devised for treating wood to eliminate or minimize this harmful effect.
An object of the present invention is to devise a method for removing harmful constituents from wood, which method will be effective and cheap.
A further object is to provide a method for treating wood in the preparation of separators which will not weaken the structure of the wood.
Other objects will appear as the description proceeds.
According to the present invention, pieces of wood which have been cut substantially to the thickness required for st rage battery separators, are treated with a solution of lead compounds whereb'y those-substances in the wood which attack lead may have an opportunity to combine with the lead inthis solution. In order that the solution may more readily come in contact with the substances referred to, it is preferable that the wood be given a preliminary treatment to open the pores. This preliminary treatment may be accomplished by soaking the wood in water, or by treating with steam, for a sufficient length of time to open the pores.
There are a great number of soluble lead compounds which may be used, as for instance, lead fluosilicate, lead chlorid, sodium plumbate, and many others. The solution may be used hot or cold, depending upon the nature of the lead salt used, as certain lead salts will, of necessity, have to be used hot binations formed by the chemical reaction may be washed from the wood with water, after which said wood is ready for service as a storage battery separator.
Instead of using a liquid as the carrier of the lead salt, humid steam may be used. Pieces of wood may be stacked in a steam chest with lead compounds in powdered form or paste form placed between said pieces of wood. The wood, with the lead compounds, will be enveloped in an atmosphere of humid steam, which will open the pores of the wood and dissolve the lead compounds. Said lead compounds will combine with those constituents of the wood which attack lead, the resulting products of which combination will trickle away from the thus opening up the pores, then treated with lead compounds in powdered or paste form,
and while kept in a moist condition, exposed to the air, whereby the lead compounds will react with those constituents of wood that attack lead. The resulting compounds may then be removed in any preferred way, for instance, by washing with water orby treatin with steam.
any modifications of the present invention will occur to those skilled in the art. It is intended in this patent to cover all such modifications that come within the scope of the invention as defined by the appended claims. 7
' What I claim as new and desire to secure by Letters Patent of the United States, is:
1.v The method of preparing storage battery separators which consists in treating I wood with a lead compound,
2. The method of preparing storage bat-- tery separators which consists in treating wood to open the pores thereof and subjecting said wood to a soluble lead compound to permit the substances in the wood which attack lead to combine with the lead in said solution.
In witness whereof, I have hereunto subscribed my name.
CAMPBELL C. CARPENTER.
in order to keep same in solution. The com-
US444736A 1921-02-14 1921-02-14 Method of preparing storage-battery separators Expired - Lifetime US1398065A (en)

Priority Applications (1)

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US444736A US1398065A (en) 1921-02-14 1921-02-14 Method of preparing storage-battery separators

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US444736A US1398065A (en) 1921-02-14 1921-02-14 Method of preparing storage-battery separators

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503443A (en) * 1946-11-29 1950-04-11 Allied Chem & Dye Corp Process for impregnating wood with sodium thiosulfate
US2532193A (en) * 1947-07-21 1950-11-28 American Package Corp Process for impregnating wood with sodium thiosulfate
US2895848A (en) * 1955-06-20 1959-07-21 Marley Co Method of preserving the wooden structure of cooling towers by impregnating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503443A (en) * 1946-11-29 1950-04-11 Allied Chem & Dye Corp Process for impregnating wood with sodium thiosulfate
US2532193A (en) * 1947-07-21 1950-11-28 American Package Corp Process for impregnating wood with sodium thiosulfate
US2895848A (en) * 1955-06-20 1959-07-21 Marley Co Method of preserving the wooden structure of cooling towers by impregnating

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