US3748181A - Galvanic cell having improved construction - Google Patents
Galvanic cell having improved construction Download PDFInfo
- Publication number
- US3748181A US3748181A US00164518A US3748181DA US3748181A US 3748181 A US3748181 A US 3748181A US 00164518 A US00164518 A US 00164518A US 3748181D A US3748181D A US 3748181DA US 3748181 A US3748181 A US 3748181A
- Authority
- US
- United States
- Prior art keywords
- paper
- mix
- cell
- plastic film
- liner
- Prior art date
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/105—Masks, metal
Definitions
- a dry separator is disadvantageous because it causes an increase 1n internal resistance and lessened electrolytic Contact with the anode.
- a dry mix is disadvantageous because it lowers the amount of electrical energy that the cell can deliver.
- One further problem is that small amounts of oxygen from the air can enter the cell during venting.
- the paper liner from which moisture has been lost, and which extends up into the air space, can provide a pathway through which oxygen can diffuse and thereby contact the inner surface of the anode. This can cause corrosion.
- FIG. 10 shows a paper battery separator having a strip of plastic film attached at the top
- the plastic films in AA sized cells having liners made in accordance with the invention were heat shrunk.
- the plastic film employed was 3mil polyvinyl chloride film that was heat shrinkable in both directions.
- a Master PHT-l ameless heat torch (purchased from Master Applicance Corporation, Racine, Wis. 53403) was employed to provide the heat. It had a nozzle shaped similarly to that shown in FIGS. 7 and 8, with an opening 1s-inch in diameter. The opening in the nozzle was positioned 12)s-inch above the top of the can.
- At an air exit temperature of 980 F., and an air pressure of 2 p.s.i., 0.24 second residence time under the nozzle was suicient to effect the desired heat shrink operation.
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16451871A | 1971-07-21 | 1971-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3748181A true US3748181A (en) | 1973-07-24 |
Family
ID=22594864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00164518A Expired - Lifetime US3748181A (en) | 1971-07-21 | 1971-07-21 | Galvanic cell having improved construction |
Country Status (8)
Country | Link |
---|---|
US (1) | US3748181A (en) |
JP (1) | JPS4821123A (en) |
AU (1) | AU4470972A (en) |
BR (1) | BR7204813D0 (en) |
CA (1) | CA972033A (en) |
DE (1) | DE2234643A1 (en) |
FR (1) | FR2146424B1 (en) |
ZA (1) | ZA725005B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076907A (en) * | 1976-08-12 | 1978-02-28 | Bright Star Industries, Inc. | Paper-lined dry cell batteries without smears |
US5075958A (en) * | 1990-07-30 | 1991-12-31 | Everady Battery Company, Inc. | Separator for electrochemical cell and process for the assembling it into the cell |
US5154731A (en) * | 1990-10-09 | 1992-10-13 | Eveready Battery Company, Inc. | Separator for electrochemical cell and process for assembling it into the cell |
US5674639A (en) * | 1995-06-07 | 1997-10-07 | Eveready Battery Company | Separator for alkaline electrochemical cells |
US20030082443A1 (en) * | 2001-10-26 | 2003-05-01 | Janmey Robert M. | Electrochemical cell with reinforced separator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9002618U1 (en) * | 1990-01-26 | 1990-05-10 | Kronseder, Hermann, 8404 Woerth, De |
-
1971
- 1971-07-21 US US00164518A patent/US3748181A/en not_active Expired - Lifetime
- 1971-07-21 JP JP7263172A patent/JPS4821123A/ja active Pending
-
1972
- 1972-06-26 CA CA145,641A patent/CA972033A/en not_active Expired
- 1972-07-14 DE DE2234643A patent/DE2234643A1/en active Pending
- 1972-07-19 AU AU44709/72A patent/AU4470972A/en not_active Expired
- 1972-07-20 FR FR7226201A patent/FR2146424B1/fr not_active Expired
- 1972-07-20 BR BR4813/72A patent/BR7204813D0/en unknown
- 1972-07-20 ZA ZA725005A patent/ZA725005B/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076907A (en) * | 1976-08-12 | 1978-02-28 | Bright Star Industries, Inc. | Paper-lined dry cell batteries without smears |
US5075958A (en) * | 1990-07-30 | 1991-12-31 | Everady Battery Company, Inc. | Separator for electrochemical cell and process for the assembling it into the cell |
US5154731A (en) * | 1990-10-09 | 1992-10-13 | Eveready Battery Company, Inc. | Separator for electrochemical cell and process for assembling it into the cell |
US5674639A (en) * | 1995-06-07 | 1997-10-07 | Eveready Battery Company | Separator for alkaline electrochemical cells |
US20030082443A1 (en) * | 2001-10-26 | 2003-05-01 | Janmey Robert M. | Electrochemical cell with reinforced separator |
US6828061B2 (en) | 2001-10-26 | 2004-12-07 | Eveready Battery Company, Inc. | Electrochemical cell with reinforced separator |
Also Published As
Publication number | Publication date |
---|---|
JPS4821123A (en) | 1973-03-16 |
CA972033A (en) | 1975-07-29 |
FR2146424A1 (en) | 1973-03-02 |
ZA725005B (en) | 1973-04-25 |
FR2146424B1 (en) | 1975-03-07 |
DE2234643A1 (en) | 1973-02-08 |
AU4470972A (en) | 1974-01-24 |
BR7204813D0 (en) | 1973-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MOR Free format text: MORTGAGE;ASSIGNORS:UNION CARBIDE CORPORATION, A CORP.,;STP CORPORATION, A CORP. OF DE.,;UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,;AND OTHERS;REEL/FRAME:004547/0001 Effective date: 19860106 |
|
AS | Assignment |
Owner name: EVEREADY BATTERY COMPANY, INC., A CORP. OF DE., MI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP. OF NY;REEL/FRAME:004660/0534 Effective date: 19860630 Owner name: EVEREADY BATTERY COMPANY, INC., CHECKERBOARD SQUAR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP. OF NY;REEL/FRAME:004660/0534 Effective date: 19860630 |
|
AS | Assignment |
Owner name: UNION CARBIDE CORPORATION, Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MORGAN BANK (DELAWARE) AS COLLATERAL AGENT;REEL/FRAME:004665/0131 Effective date: 19860925 |