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41. 发明专利

FR2142939B1 未知
公开(公告)号：FR2142939B1
公开(公告)日：1973-07-13
申请号：FR7217648
申请日：1972-05-17
申请人： IONICS
IPC分类号： B01D67/00 , B01D69/02 , C08J5/22 , C25B13/04 , H01M2/16 , C08F47/00 , H01M23/00 , H01M3/00 , C08F19/00 , B01D15/00 , B01D13/00
摘要： 1381061 Ion-selective polymer membranes and their preparation IONICS Inc 1 May 1972 [21 June 1971] 20055/72 Heading C3P [Also in Division C7] An ion-selective membrane has a macroporous structure in at least one surface thereof, the remainder of the thickness of the membrane having a microporous gel structure. The macropore size is preferably 500-1500 ngstr÷ms and the micropore size is preferably 10-30 ngstr÷ms. Both surfaces are preferably macroporous and the thickness of the membrane is preferably 1-100 mil. The membrane may comprise a copolymer of at least one monovinyl aromatic compound with at least one polyvinyl aromatic compound, and contains ion-selective groups such as quaternary ammonium groups or primary, secondary or tertiary amine groups, or sulphonic acid, phosphonium, tert.-sulphonium, phosphonic, carboxy, phosphinic, thiophosphinic or arsonic groups. The invention also comprises a process for preparing such membranes wherein at least one monovinyl aromatic monomer and between 20 and 80 mole per cent (based on the total monomers) of at least one polyvinyl aromatic monomer are copolymerized in the presence of between 15 and 75 vol. per cent of a pair of solvents, one of which is a good solvent and the other a poor solvent (both defined), under conditions such that escape of vaporized poor solvent is substantially prevented (e.g. between glass plates) and a sheet or film of the polymer is formed. If none of the monomers contained ion-selective groups, these are subsequently introduced, such as by chloromethylation and then introduction of any of the groups specified above. Examples of monovinyl aromatic monomers are styrene, ethylstyrene, methyl styrene and other substituted styrenes and mixtures thereof, and examples of polyvinyl monomers are divinylbenzene, divinyl toluene, and trivinyl benzene and mixtures thereof. Good solvents are those with boiling points higher than the polymerization temperature and totally dissolve the monomers and swell the resulting polymer. Examples thereof are aromatic hydrocarbons, ketones, ethers, dioxane and halogenated hydrocarbons. Poor solvents must not swell or dissolve in the product polymer, and it is these that produce the macroporous structure, as they are driven outwards from the centre of the polymerizing mass. Examples thereof (for a styrene/divinyl benzene copolymer) are C 1-4 alkanols and their isomers, hexane, cyclohexane, heptane and isooctane and polypropylene and polyethylene glycols, polycarboxylic acids, monocarboxylic acids and kerosene. In the examples, styrene and divinyl benzene are cast polymerized (together with a fabric mat as reinforcement) in the presence of the following solvent pairs: ethanol (poor) and diethyl benzene (good); methanol (poor) and diethyl benzene; and sec.- butanol (poor) and diethyl benzene.

42. 发明专利

FR2158014A1 未知
公开(公告)号：FR2158014A1
公开(公告)日：1973-06-08
申请号：FR7238180
申请日：1972-10-27
申请人： PUOLUSTUSMINISTERIO ETAT
IPC分类号： H01M2/36 , H01M6/32 , H01M7/00 , H01M17/00 , H01M23/00
摘要： 1367823 Reserve cells DEFENCE MINISTRY OF FINLAND 24 Oct 1974 [27 Oct 1971] 48893/72 Heading H1B [Also in Division G3] A normally inert electrochemical cell 1 is activated by introducing electrolyte between its plates, the means 7 for injecting water from pipes 9, 10 into the cell drawing active electrolyte constituents from containers 2, 3 and mixing them with the water. The spent electrolyte is discharged through duct 16. Pipes 9, 10 may supply cold and hot water respectively to mixing valve 11, the temperature of the water being monitored by sensor 12 which controls mixing valve 11 through members 13, 14. Valve 11 may, as shown, also respond to voltage change across cell terminals 18 by changing the electrolyte temperature or rate of flow. Containers 2 and 3 may supply sulphuric and chromic acids when the cell electrodes are zinc and graphite, or sodium chloride solution when the electrodes are magnesium and silver chloride, or are magnesium and carbon. Instead of mixing hot and cold water, a single tank employing an immersion heater and thermostat may be used.

43. 发明专利

FR2076819A5 Batteries with magnesium anodes - having magnesium perchlorate electrolyte and manganese dioxide depolariser 未知
公开(公告)号：FR2076819A5
公开(公告)日：1971-10-15
申请号：FR7003140
申请日：1970-01-29
申请人： ACCUMULATEURS FIXES
IPC分类号： H01M6/48 , H01M23/00
摘要： Battery consists of an assembly of Mg anodes coated on one side with a conductive varnish and supporting on the other a separator and a depolariser. The assembly is bound together with adhesive tape and coated with wax. Pref. compsns. are: electrolyte 2N aq. Mg(ClO4)2 to which may be added sodium or lithium metaborate to pH 11, depolariser 85% MnO2, 10% carbon black, 3% BaCrO4, 1% Mg(OH)2. The electrolyte may be added during production.

44. 发明专利

NL7102656A 未知
公开(公告)号：NL7102656A
公开(公告)日：1971-08-31
申请号：NL7102656
申请日：1971-02-26
IPC分类号： H01M2/02 , H01M6/10 , H01M6/46 , H01M21/00 , H01M23/00
摘要： 1288910 Sealed cells SOC DES ACCUMULATEURS FIXES ET DE TRACTION 19 April 197 [27 Feb 1970] 22484/71 Heading H1B An electric cell assembly having a low collision impact mass for use in weather balloons &c., comprises a rigid hollow tubular support 1, Fig. 3, of synthetic material with a grid like structure around which a thin flexible sealed envelope 2 containing thin electrodes, electrolytic and separators is tightly wrapped and held in position by stretched adhesive tape 10. Each cell assembly is flexibly coupled to an adjacent assembly by further strips of flexible adhesive tape 11 leaving gaps between each assembly whereby the electrodes may be coupled end to end as by welded wires 12 of greater length than the gap. The terminals 5, 7 may be of metal mesh welded to the electrodes. Specification 1,201,555 is referred to as giving further constructional details of the flexible electric cell.

45. 发明专利

BR7607809A 未知
公开(公告)号：BR7607809A
公开(公告)日：1977-10-11
申请号：BR7607809
申请日：1976-11-22
申请人： ESB INC
发明人： MEGAHED E , SPELLMAN P , BUELOW C
IPC分类号： H01M4/06 , H01M4/54 , H01M6/12 , H01M23/00
摘要： A primary alkaline cell having a stable divalent silver oxide depolarizer mix comprising a negative electrode (anode), a divalent silver oxide (AgO) depolarizer mix, a separator between said negative electrode and depolarizer mix, and an alkaline electrolyte. The surface of the depolarizer mix is treated with a mild reducing solution to form a reduced layer surrounding the mix, and the surface of the reduced layer adjacent to the separator is coated with a layer of silver. The reduced layer surrounding the depolarizer mix in combination with the layer of silver provides improved stability of the depolarizer mix in the alkaline electrolyte and a single voltage plateau during discharge of the cell. The primary alkaline cell is characterized by a maximum open circuit voltage of about 1.75 volts.

46. 发明专利

IN141057B A METHOD OF MAKING A LEAD-ACID STORAGE BATTERY AND THE BATTERY ITSELF CAPABLE OF ACTIVATION BY THE ADDITION OF ELECTROLYTE 未知
公开(公告)号：IN141057B
公开(公告)日：1977-01-15
申请号：IN2817CA1973
申请日：1973-12-27
申请人： GOULD INC
发明人： MAO G , SABATINO A , RAO P
IPC分类号： H01M20060101 , H01M23/00

47. 发明专利

FR2159464B1 未知
公开(公告)号：FR2159464B1
公开(公告)日：1976-08-20
申请号：FR7239933
申请日：1972-11-10
申请人： BRITISH RAILWAYS BOARD
IPC分类号： H01M6/48 , H01M10/39 , H01M43/00 , H01M23/00

48. 发明专利

AU6308373A SEALING BATTERY LAYERS 未知
公开(公告)号：AU6308373A
公开(公告)日：1975-06-05
申请号：AU6308373
申请日：1973-11-30
申请人： ESB INC
发明人： BILHORN JOHN M , ANDERSON KENT V
IPC分类号： H01M2/02 , H01M6/46 , H01M43/00 , H01M23/00 , H01M41/00
摘要： The method, which provides liquid-impervious seals around opposed positive and negative battery electrodes in a collation of battery layers, concerns the need to apply energy around the opposed electrodes by some means other than and for a longer time period than the conventional pair of pressure rolls which have previously been used to seal moving battery layers. With this invention the seals are made by platens which either travel along with the moving collation during the sealing step or which are brought into contact with an increment of the collation which is temporarily stopped.

49. 发明专利

DE2421230A1 未知
公开(公告)号：DE2421230A1
公开(公告)日：1974-12-05
申请号：DE2421230
申请日：1974-05-02
申请人： PHILIPS MATSUSHITA BATT CORP
发明人： NUIJENS HUBERTUS LUDOVICUS COR , DOEDEE ROBERT THEODORUS MARIA , SNETHORST ADRIANUS CORNELIS JO
IPC分类号： H01M6/08 , H01M2/10 , H01M6/22 , H01M23/00 , H01M21/00
摘要： A battery consisting of a single primary cell or a plurality of series or parallel-arranged cells whose metal electrode is also the cell wall in an envelope in which the space between the cell wall and the envelope comprises one or more materials which are capable of binding possibly released electrolyte by increasing the viscosity of the electrolyte.

50. 发明专利

SU444279A1 未知
公开(公告)号：SU444279A1
公开(公告)日：1974-09-25
申请号：SU1928717
申请日：1973-06-11
IPC分类号： H01M6/00 , H01M23/00 , H01M31/04

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