CN106159164A - A kind of high-temperature Ni/H 2 battery barrier film - Google Patents

A kind of high-temperature Ni/H 2 battery barrier film Download PDF

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Publication number
CN106159164A
CN106159164A CN201610859842.1A CN201610859842A CN106159164A CN 106159164 A CN106159164 A CN 106159164A CN 201610859842 A CN201610859842 A CN 201610859842A CN 106159164 A CN106159164 A CN 106159164A
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nonwoven fabric
fiber
barrier film
temperature
mass fraction
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CN201610859842.1A
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崔国士
赵红英
崔攀
马翔
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Henan Kegao Radiation Chemical Technology Co Ltd
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Henan Kegao Radiation Chemical Technology Co Ltd
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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
    • 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
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/34—Gastight accumulators
    • H01M10/345—Gastight metal hydride accumulators
    • 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
    • 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
    • H01M50/44—Fibrous material
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Separators (AREA)

Abstract

A kind of high-temperature Ni/H 2 battery barrier film, described barrier film is by the nonwoven fabric base fabric graft acrylic acid via radiation containing polyolefin composite fiber and thermally-stabilised fiber and/or Sodium styrene sulfonate operation, and rolling and molding operation is made；Described barrier film is not only able to effectively to reduce its thermal contraction in processing and when running into high temperature during using, but also it can be made in use to keep higher air penetrability.

Description

A kind of high-temperature Ni/H 2 battery barrier film
[technical field]
The present invention relates to Ni-MH battery field, especially relate to a kind of barrier film being applicable to sealed high-temperature Ni/H 2 battery.
[background technology]
Known, the critical material constituting Ni-MH battery includes positive and negative electrode material and diaphragm material, wherein, due to barrier film Being the special material for split cell positive and negative electrode, the redox reaction on its positive and negative electrode to be made is in zones of different Complete, thus prevent positive and negative electrode active substance from contacting with each other, but also electrolyte free diffusing to be allowed and ion migration, from And produce electric current, therefore, the quality of barrier film can produce large effect to the performance of Ni-MH battery, especially for high temperature ni-mh Battery, the quality of its barrier film directly decides the performance height of battery；
Under normal circumstances, high-temperature Ni/H 2 battery refers to the battery worked in the ambient temperature more than 45 DEG C, due to Common Ni-MH battery is after ambient temperature is more than more than 30 DEG C, and its charge-discharge performance will significantly reduce, and the most typically recognizes For, high-temperature Ni/H 2 battery charge/discharge capacity under the high temperature conditions should reach more than 80% under normal temperature condition；At present, traditional Nickel-hydrogen battery separator mainly by through sulfonation, be fluorinated or be grafted the polyolefine fiber after anionic hydrophilic group processes, then It is prepared from through wet method nonwoven fabric, but, by substantial amounts of it was verified that traditional nickel-hydrogen battery separator cannot effectively be applied In high-temperature Ni/H 2 battery, it is primarily due to barrier film during processing and using, and one when running into the temperature of more than 80 DEG C Thermal contraction will be produced, thus cause the reduction of barrier film porosity, aperture to diminish and air penetrability decline；
On the other hand, when working under the high temperature conditions due to high-temperature Ni/H 2 battery, its after charging the phase produce because of water electrolysis Raw hydrogen, oxygen are far above common Ni-MH battery, and this is for sealed Ni-MH battery, and these gas of generation needs Recombine into water through barrier film, otherwise may result in inner pressure of battery and increase, once gas overflowing, will result in electrolyte and damage Losing, finally make degradation of cell performance, cycle life declines, and therefore, the barrier film of high-temperature Ni/H 2 battery is accomplished by under the high temperature conditions Remain to keep higher air penetrability, and traditional nickel-hydrogen battery separator is difficult to meet this condition.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of high-temperature Ni/H 2 battery barrier film, described barrier film It is not only able to effectively to reduce its thermal contraction in processing and when running into high temperature during using, but also it can be made to use During keep higher air penetrability.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of high-temperature Ni/H 2 battery barrier film, described barrier film is knitted by containing polyolefin composite fiber and the non-of thermally-stabilised fiber Cloth base fabric graft acrylic acid via radiation and/or Sodium styrene sulfonate operation, and rolling and molding operation makes；Described polyolefin Composite fibre be cortex be polyethylene, sandwich layer be polyacrylic skin-core structure composite fibre, its surface density is 58～67g/m2, matter Amount mark is 70～95%；Described thermally-stabilised fiber is the shrinkage temperature ultra-fine ultrashort long and slender dimension more than 120 DEG C, its quality Mark is 5.0～30%；The fineness of above-mentioned fiber is 0.55～1.65dtex, and the length of fiber is 3～8mm.
Further, described nonwoven fabric is wet method nonwoven fabric or hot blast nonwoven fabric.
Further, described thermally-stabilised fiber includes any one in nylon fiber, vinylon fiber or polypropylene fibre Or combination in any；
Further, described radiation grafting acrylic acid and/or Sodium styrene sulfonate operation include absorbed dose, reaction temperature Degree, response time and four factors of graft reaction liquid, wherein: absorbed dose are 15～30kGy；Reaction temperature is 70～90 DEG C； Response time is 5～12hr；Graft reaction liquid is 0 containing mass fraction～the acrylic acid of 8.0% and mass fraction be 0～ The Sodium styrene sulfonate of 10.0%, remaining is deionized water.
Further, described nonwoven fabric graft acrylic acid via radiation and/or Sodium styrene sulfonate operation are to make fiber table The acrylic acid of chemical bonding and/or the homopolymer of Sodium styrene sulfonate and/or copolymer, this homopolymer and/or copolymerization are contained in face The percent grafting of thing is 2.0～5.0%.
Further, described polyolefin composite fiber surface density is 67g/m2, fibre fineness be 1.65dtex, fibre length Be 70% for 5mm, its mass fraction, described thermally-stabilised fiber be fibre fineness be 1.65dtex, fibre length be 8mm, matter Amount mark is the polypropylene fibre of 30%, and this polyolefin composite fiber and polypropylene fibre constitute hot blast nonwoven fabric base fabric；Described Radiation grafting acrylic acid and/or Sodium styrene sulfonate operation carry out irradiation for being first placed in cobalt source by this hot blast nonwoven fabric, inhale Receipts dosage is 15kGy, then the hot blast nonwoven fabric after irradiation is placed in reactor addition graft reaction liquid, and is heated to 90 DEG C, Reaction 5hr, percent grafting is 4.68%, and containing mass fraction in its graft reaction liquid added is the acrylic acid of 5.0%, and remaining is Deionized water；Described rolling and molding operation is first will to react through radiation grafting acrylic acid and/or Sodium styrene sulfonate operation After hot blast nonwoven fabric take out carry out washing, drying, carry out rolling and molding the most again, be eventually fabricated the high temperature that thickness is 200 μm Nickel-hydrogen battery separator.
Further, described polyolefin composite fiber surface density is 63g/m2, fibre fineness be 1.1dtex, fibre length Be 90% for 3mm, its mass fraction, described thermally-stabilised fiber be fibre fineness be 1.1dtex, fibre length be 5mm, quality Mark is the nylon fiber of 10%, and this polyolefin composite fiber and nylon fiber constitute wet method nonwoven fabric base fabric；Described radiation Graft acrylic acid and/or Sodium styrene sulfonate operation, for first this wet method nonwoven fabric is carried out irradiation by electron accelerator, absorb Dosage is 30kGy, then the wet method nonwoven fabric after irradiation is placed in reactor addition graft reaction liquid, and is heated to 80 DEG C, instead Answering 8hr, percent grafting is 2.37%, and containing mass fraction in its graft reaction liquid added is the Sodium styrene sulfonate of 10.0%, Remaining is deionized water；Described rolling and molding operation is first will be through radiation grafting acrylic acid and/or Sodium styrene sulfonate work Sequence reacted wet method nonwoven fabric takes out and carries out washing, drying, and carries out rolling and molding the most again, and being eventually fabricated thickness is 180 μm High-temperature Ni/H 2 battery barrier film.
Further, described polyolefin composite fiber surface density is 58g/m2, fibre fineness be 1.1dtex, fibre length Be 95% for 5mm, its mass fraction, described thermally-stabilised fiber be fibre fineness be 0.55dtex, fibre length be 3mm, matter Amount mark is the vinylon fiber of 5%, and this polyolefin composite fiber and vinylon fiber constitute wet method nonwoven fabric base fabric；Described Radiation grafting acrylic acid and/or Sodium styrene sulfonate operation for first this wet method nonwoven fabric is carried out irradiation by electron accelerator, Absorbed dose are 20kGy, then the wet method nonwoven fabric after irradiation is placed in reactor addition graft reaction liquid, and are heated to 70 DEG C, react 12hr, percent grafting is 3.72%, its add graft reaction liquid in containing mass fraction be 1.5% acrylic acid and/ Or mass fraction is the Sodium styrene sulfonate of 4.5%, remaining is deionized water；Described rolling and molding operation is first will be through spoke Penetrate graft acrylic acid and/or Sodium styrene sulfonate operation reacted wet method nonwoven fabric takes out and carries out washing, drying, enter the most again Row rolling and molding, is eventually fabricated the high-temperature Ni/H 2 battery barrier film that thickness is 150 μm.
Owing to using technical scheme as above, there is advantages that
High-temperature Ni/H 2 battery barrier film of the present invention is by containing polyolefin composite fiber and the nonwoven fabric of thermally-stabilised fiber Base fabric graft acrylic acid via radiation and/or Sodium styrene sulfonate operation, and rolling and molding operation makes, and adopts in described barrier film Thermally-stabilised fiber can effectively reduce barrier film processing and use during run into thermal contraction phenomenon produced by high temperature, So that barrier film in use maintains higher air penetrability；The polyolefin composite fiber used in described barrier film is main Playing bonding effect, it can make barrier film have enough intensity, so that barrier film can have higher heat resistance；Described Radiation grafting acrylic acid and/or Sodium styrene sulfonate operation can make barrier film have enough close electrolyte properties and charged merit Can, thus effectively raise the total quality of battery, extend service life accordingly；Described rolling and molding operation is mainly used In making barrier film have stable design thickness, thus ensure that battery security and stability in use accordingly.
[detailed description of the invention]
Can be explained in more detail the present invention by the following examples, the open purpose of the present invention is intended to protect the present invention In the range of all changes and improvements, the invention is not limited in the following examples:
High-temperature Ni/H 2 battery barrier film of the present invention is by containing polyolefin composite fiber and the nonwoven fabric of thermally-stabilised fiber Base fabric graft acrylic acid via radiation and/or Sodium styrene sulfonate and rolling and molding operation are made, and described nonwoven fabric is to have foot The wet method nonwoven fabric of enough uniformitys or hot blast nonwoven fabric；Described thermally-stabilised fiber is ultra-fine more than 120 DEG C of shrinkage temperature Ultrashort long and slender dimension, including one or more in nylon fiber, vinylon fiber, polypropylene fibre；Described polyolefin Fiber is the composite fibre with skin-core structure, and its cortex is polyethylene, and sandwich layer is polypropylene；Meanwhile, the fineness of all fibres It is 0.55～1.65dtex, a length of the 3 of fiber～8mm, and the mass fraction of polyolefin composite fiber is 70～95%, heat is steady The mass fraction determining fiber is 5.0～30%；The chemical constitution of described high-temperature Ni/H 2 battery barrier film refers to grafted propylene via radiation Acid and/or Sodium styrene sulfonate operation make acrylic acid and/or the homopolymerization of Sodium styrene sulfonate that fiber surface contains chemical bonding Thing and/or copolymer, the percent grafting of this homopolymer and/or copolymer is 2.0～5.0%；Described radiation grafting acrylic acid and/ Or Sodium styrene sulfonate operation includes absorbed dose, reaction temperature, response time and graft reaction liquid four reaction factors of composition, Wherein: described absorbed dose are 15～30kGy；Described reaction temperature is 70～90 DEG C；The described response time be 5～ 12hr；Described graft reaction liquid is 0 containing mass fraction～the acrylic acid of 8.0% or mass fraction are 0～10.0% Sodium styrene sulfonate, remaining is deionized water.
Being described as follows of described high-temperature Ni/H 2 battery barrier film:
Example 1: employing averaged areal density is 67g/m2, fibre fineness be 1.65dtex, fibre length be 5mm, mass fraction Be the polyolefin composite fiber of 70%, and fibre fineness be 1.65dtex, fibre length be 8mm, mass fraction be 30% poly- Tacryl constitutes hot blast nonwoven fabric, is provided in cobalt source by this hot blast nonwoven fabric cloth and carries out irradiation, and absorbed dose are 15kGy； Cloth after irradiation is provided in reactor, adds graft reaction liquid, be heated to 90 DEG C, react 5hr；Water is taken out after reaction Wash, dry, rolling and molding, make thickness 200 μm high-temperature Ni/H 2 battery barrier film；In graft reaction liquid, acrylic acid mass fraction is 5.0%, remaining is deionized water；Calculating according to the weight of barrier film before and after grafting, percent grafting is 4.68%.
Example 2: employing averaged areal density is 63g/m2, fibre fineness be 1.1dtex, fibre length be 3mm, its mass fraction Be the polyolefin composite fiber of 90%, and fibre fineness be 1.1dtex, fibre length be 5mm, mass fraction be the nylon of 10% Fiber constitutes wet method nonwoven fabric, and by this wet method nonwoven fabric yardage roll by electron accelerator irradiation, absorbed dose are 30kGy；By spoke Cloth after according to is provided in reactor, adds graft reaction liquid, is heated to 80 DEG C, reacts 8hr；Taking-up washing after reaction, Dry, rolling and molding, make thickness 180 μm high-temperature Ni/H 2 battery barrier film；In graft reaction liquid, the quality of Sodium styrene sulfonate is divided Number is 10%, and remaining is deionized water；Calculating according to the weight of barrier film before and after grafting, percent grafting is 2.37%.
Example 3: employing surface density is 58g/m2, fibre fineness be 1.1dtex, fibre length be 5mm, its mass fraction be The polyolefin composite fiber of 95%, and fibre fineness be 0.55dtex, fibre length be 3mm, mass fraction be the vinylon of 5% Fiber constitutes wet method nonwoven fabric, and by this wet method nonwoven fabric yardage roll electron accelerator irradiation, absorbed dose are 20kGy；After irradiation Cloth be provided in reactor, add graft reaction liquid, be heated to 70 DEG C, react 12hr；Take out washing after reaction, dry Dry, rolling and molding, make thickness 150 μm high-temperature Ni/H 2 battery barrier film；In graft reaction liquid, acrylic acid mass fraction is 1.5%, The mass fraction of Sodium styrene sulfonate is 4.5%, and remaining is deionized water；Calculate according to the weight of barrier film before and after grafting, grafting Rate is 3.72%.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.

Claims (8)

1. a high-temperature Ni/H 2 battery barrier film, is characterized in that: described barrier film is by containing polyolefin composite fiber and thermally-stabilised fibre The nonwoven fabric base fabric graft acrylic acid via radiation of dimension and/or Sodium styrene sulfonate operation, and rolling and molding operation makes；Described Polyolefin composite fiber be cortex be polyethylene, sandwich layer be polyacrylic skin-core structure composite fibre, its surface density be 58～ 67g/m2, mass fraction is 70～95%；Described thermally-stabilised fiber is ultra-fine ultrashort long and slender more than 120 DEG C of shrinkage temperature Dimension, its mass fraction is 5.0～30%；The fineness of above-mentioned fiber is 0.55～1.65dtex, the length of fiber be 3～ 8mm。
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described nonwoven fabric be wet method nonwoven fabric or Hot blast nonwoven fabric.
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described thermally-stabilised fiber includes that nylon is fine Any one in dimension, vinylon fiber or polypropylene fibre or combination in any.
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described radiation grafting acrylic acid and/or Sodium styrene sulfonate operation includes absorbed dose, reaction temperature, response time and four factors of graft reaction liquid, wherein: absorb Dosage is 15～30kGy；Reaction temperature is 70～90 DEG C；Response time is 5～12hr；Graft reaction liquid containing mass fraction is 0～the acrylic acid of 8.0% and Sodium styrene sulfonate that mass fraction is 0～10.0%, remaining is deionized water.
5. further, described nonwoven fabric graft acrylic acid via radiation and/or Sodium styrene sulfonate operation are to make fiber table The acrylic acid of chemical bonding and/or the homopolymer of Sodium styrene sulfonate and/or copolymer, this homopolymer and/or copolymerization are contained in face The percent grafting of thing is 2.0～5.0%.
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described polyolefin composite fiber surface density For 67g/m2, fibre fineness be 1.65dtex, fibre length be 5mm, its mass fraction be 70%, described thermally-stabilised fiber is Fibre fineness is 1.65dtex, fibre length is 8mm, mass fraction is the polypropylene fibre of 30%, this polyolefin composite fiber Hot blast nonwoven fabric base fabric is constituted with polypropylene fibre；Described radiation grafting acrylic acid and/or Sodium styrene sulfonate operation are first Being placed in cobalt source by this hot blast nonwoven fabric and carry out irradiation, absorbed dose are 15kGy, then are placed in instead by the hot blast nonwoven fabric after irradiation Answering addition graft reaction liquid in device, and be heated to 90 DEG C, react 5hr, percent grafting is 4.68%, in its graft reaction liquid added Being the acrylic acid of 5.0% containing mass fraction, remaining is deionized water；Described rolling and molding operation will be for first will connect through overshoot Branch acrylic acid and/or Sodium styrene sulfonate operation reacted hot blast nonwoven fabric take out and carry out washing, drying, and carry out heat the most again Roll sizing, be eventually fabricated the high-temperature Ni/H 2 battery barrier film that thickness is 200 μm.
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described polyolefin composite fiber surface density For 63g/m2, fibre fineness be 1.1dtex, fibre length be 3mm, its mass fraction be 90%, described thermally-stabilised fiber is Fibre fineness is 1.1dtex, fibre length is 5mm, mass fraction is the nylon fiber of 10%, this polyolefin composite fiber and Buddhist nun Dragon fiber constitutes wet method nonwoven fabric base fabric；Described radiation grafting acrylic acid and/or Sodium styrene sulfonate operation are first that this is wet Method nonwoven fabric carries out irradiation by electron accelerator, and absorbed dose are 30kGy, then the wet method nonwoven fabric after irradiation is placed in reaction Adding graft reaction liquid in device, and be heated to 80 DEG C, react 8hr, percent grafting is 2.37%, contains in its graft reaction liquid added The Sodium styrene sulfonate having mass fraction to be 10%, remaining is deionized water；Described rolling and molding operation is first will be through spoke Penetrate graft acrylic acid and/or Sodium styrene sulfonate operation reacted wet method nonwoven fabric takes out and carries out washing, drying, enter the most again Row rolling and molding, is eventually fabricated the high-temperature Ni/H 2 battery barrier film that thickness is 180 μm.
High-temperature Ni/H 2 battery barrier film the most according to claim 1, is characterized in that: described polyolefin composite fiber surface density For 58g/m2, fibre fineness be 1.1dtex, fibre length be 5mm, its mass fraction be 95%, described thermally-stabilised fiber is Fibre fineness is 0.55dtex, fibre length is 3mm, mass fraction is the vinylon fiber of 5%, this polyolefin composite fiber and Vinylon fiber constitutes wet method nonwoven fabric base fabric；Described radiation grafting acrylic acid and/or Sodium styrene sulfonate operation are first will This wet method nonwoven fabric carries out irradiation by electron accelerator, and absorbed dose are 20kGy, then is placed in by the wet method nonwoven fabric after irradiation Adding graft reaction liquid in reactor, and be heated to 70 DEG C, react 12hr, percent grafting is 3.72%, its graft reaction added In liquid containing mass fraction be 1.5% acrylic acid and mass fraction be the Sodium styrene sulfonate of 4.5%, remaining is deionization Water；Described rolling and molding operation is first will be reacted wet through radiation grafting acrylic acid and/or Sodium styrene sulfonate operation Method nonwoven fabric takes out and carries out washing, drying, and carries out rolling and molding the most again, is eventually fabricated the high temperature ni-mh electricity that thickness is 150 μm Pond barrier film.
CN201610859842.1A 2016-09-29 2016-09-29 A kind of high-temperature Ni/H 2 battery barrier film Pending CN106159164A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109326762A (en) * 2018-10-26 2019-02-12 中原工学院 A kind of wet forming battery diaphragm and preparation method thereof that aperture is controllable
CN111916581A (en) * 2019-05-09 2020-11-10 山东华太新能源电池有限公司 High-capacity rechargeable nickel-metal hydride battery and manufacturing method thereof

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CN1917256A (en) * 2006-08-23 2007-02-21 常州市康捷电池材料有限公司 Grafted polypropylene diaphragm and manufacturing method
CN102569696A (en) * 2010-12-15 2012-07-11 莱州联友金浩新型材料有限公司 Novel nickel-hydrogen battery diaphragm
CN102903878A (en) * 2011-07-28 2013-01-30 三菱制纸株式会社 Septum used in battery
JP2014197470A (en) * 2013-03-29 2014-10-16 三菱製紙株式会社 Separator for alkali battery use
CN105098126A (en) * 2015-09-14 2015-11-25 河南科高辐射化工科技有限公司 Composite membrane for exhaust-type square nickel-cadmium battery and preparation method of composite membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917256A (en) * 2006-08-23 2007-02-21 常州市康捷电池材料有限公司 Grafted polypropylene diaphragm and manufacturing method
CN102569696A (en) * 2010-12-15 2012-07-11 莱州联友金浩新型材料有限公司 Novel nickel-hydrogen battery diaphragm
CN102903878A (en) * 2011-07-28 2013-01-30 三菱制纸株式会社 Septum used in battery
JP2014197470A (en) * 2013-03-29 2014-10-16 三菱製紙株式会社 Separator for alkali battery use
CN105098126A (en) * 2015-09-14 2015-11-25 河南科高辐射化工科技有限公司 Composite membrane for exhaust-type square nickel-cadmium battery and preparation method of composite membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109326762A (en) * 2018-10-26 2019-02-12 中原工学院 A kind of wet forming battery diaphragm and preparation method thereof that aperture is controllable
CN111916581A (en) * 2019-05-09 2020-11-10 山东华太新能源电池有限公司 High-capacity rechargeable nickel-metal hydride battery and manufacturing method thereof

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Application publication date: 20161123