JP2636854B2 - Felt for battery separator and method for producing the same - Google Patents

Felt for battery separator and method for producing the same

Info

Publication number
JP2636854B2
JP2636854B2 JP62215729A JP21572987A JP2636854B2 JP 2636854 B2 JP2636854 B2 JP 2636854B2 JP 62215729 A JP62215729 A JP 62215729A JP 21572987 A JP21572987 A JP 21572987A JP 2636854 B2 JP2636854 B2 JP 2636854B2
Authority
JP
Japan
Prior art keywords
felt
fiber
polyamide
present
battery separator
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
Application number
JP62215729A
Other languages
Japanese (ja)
Other versions
JPS6459761A (en
Inventor
晴彦 川本
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.)
YUNICHIKA KK
Original Assignee
YUNICHIKA KK
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.)
Filing date
Publication date
Application filed by YUNICHIKA KK filed Critical YUNICHIKA KK
Priority to JP62215729A priority Critical patent/JP2636854B2/en
Publication of JPS6459761A publication Critical patent/JPS6459761A/en
Application granted granted Critical
Publication of JP2636854B2 publication Critical patent/JP2636854B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Cell Separators (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は，アルカリ／オゾン系での繊維劣化防止性能
を有する電池セパレーター用フェルト及びその製造方法
に関するものである。Description: TECHNICAL FIELD The present invention relates to a felt for a battery separator having a performance of preventing fiber deterioration in an alkali / ozone system and a method for producing the felt.

（従来の技術） 一般にセパレーターを必要とする電池としてアルカリ
一次電池がある。アルカリ一次電池としては，アルカリ
マンガン電池，酸化銀電池，水銀電池，ニッケル電池，
酸化水銀−カドミウム電池等が生産されている。このア
ルカリ電池の構成としては，正極活物質，電解質，負極
活物質からなっており，本発明の対象となるセパレータ
ーは，電解質（以降，アルカリ電解液と呼称する。）の
保持層として用いられる他に，正負両極が接触して短絡
するのを防止して電池の寿命を延ばす役割をも果たすも
のである。現在，このセパレーターに用いられているも
のに，繊維質不織布，綿状構造物がある。その繊維素材
としては，用途面から耐アルカリ性に優れたナイロン，
ポリエチレン，ポリプロピレン及び木綿等が採用されて
いる。また，このセパレーターに要求される特性として
は，吸水性，電気絶縁性及び正負極活物質より発生した
放電生成物等により劣化されないことが要求される。と
ころが，このセパレーターに要求される性能を全て満足
する素材は，見出されていないのが現状である。(Prior Art) Generally, there is an alkaline primary battery as a battery requiring a separator. Alkaline primary batteries include alkaline manganese batteries, silver oxide batteries, mercury batteries, nickel batteries,
Mercury oxide-cadmium batteries and the like have been produced. The configuration of this alkaline battery is composed of a positive electrode active material, an electrolyte, and a negative electrode active material, and the separator to which the present invention is applied is used as a holding layer for an electrolyte (hereinafter, referred to as an alkaline electrolyte). In addition, it prevents the positive and negative electrodes from coming into contact with each other and short-circuiting to extend the life of the battery. At present, fibrous nonwoven fabrics and cotton-like structures are used for this separator. Nylon, which has excellent alkali resistance in terms of application,
Polyethylene, polypropylene, cotton and the like are used. The characteristics required for the separator include water absorption, electrical insulation, and not being deteriorated by discharge products generated from the positive and negative electrode active materials. However, a material that satisfies all the performances required for this separator has not been found at present.

（発明が解決しようとする問題点） 現在，電池用セパレーターに用いられている素材の中
で木綿及びナイロンは，吸水性の面で優れているが，ア
ルカリ電解液中で木綿は，膨潤して形態変化を引き起こ
す。一方，ナイロン，ポリプロピレン，ポリエチレン等
の合成繊維は，アルカリ電解液に対する耐久性の面では
良好であるが，正負極活物質より生成する放電生成物に
より劣化し易い欠点がある。(Problems to be Solved by the Invention) Among the materials currently used for battery separators, cotton and nylon are excellent in terms of water absorption, but cotton swells in an alkaline electrolyte. Causes morphological changes. On the other hand, synthetic fibers such as nylon, polypropylene, and polyethylene have good durability with respect to an alkaline electrolyte, but have a disadvantage that they are easily deteriorated by discharge products generated from positive and negative electrode active materials.

（問題点を解決するための手段） 本発明は，アルカリ電解液のセパレーター用フェルト
としてアルカリ電解液に対する耐久性があり，吸水性に
優れ，かつ正負極活物質より生成する放電生成物である
オゾンに対し劣化防止機能を有するポリアミドフェルト
を得るべく鋭意研究を行った結果，本発明に到達したも
のである。(Means for Solving the Problems) The present invention provides ozone, which is a discharge product generated from positive and negative electrode active materials, has durability against an alkaline electrolyte, has excellent water absorbability, and is used as a separator felt for an alkaline electrolyte. As a result of intensive research on obtaining a polyamide felt having a function of preventing deterioration, the present invention has been achieved.

すなわち，本発明は，融点が100℃未満であるジチオ
カルバメート系化合物を含有したポリアミド繊維からな
る電池セパレーター用フェルト及びその製造方法を要旨
とするものである。That is, the gist of the present invention is a felt for a battery separator made of a polyamide fiber containing a dithiocarbamate compound having a melting point of less than 100 ° C. and a method for producing the felt.

以下，本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.

先ず，本発明におけるポリアミド繊維とは，ナイロン
6,ナイロン66,ナイロン46等のアミド結合を有するもの
で，ε−カプロラクタム等の開環重合またはヘキサメチ
レンジアミンとアジピン酸等の二塩基酸とジアミンとの
重縮合反応により製造されるものである。なお，本発明
のポリアミド繊維の形態としては，不織布，綿状物，ト
ウ等のものが電池用セパレーター用フェルトを製造する
のに好ましく用いられる。First, the polyamide fiber in the present invention is a nylon fiber.
6, Nylon 66, Nylon 46, etc. with amide bond, produced by ring-opening polymerization of ε-caprolactam, etc. or polycondensation reaction of hexamethylene diamine with dibasic acid such as adipic acid and diamine . As the form of the polyamide fiber of the present invention, a nonwoven fabric, a cotton-like material, a tow or the like is preferably used for producing a felt for a battery separator.

ジチオカルバメート系化合物としては一般式（１） （R1,R2は水素又は炭化水素基もしくはベンゼン核,nは
１〜４の整数であり,Mは鉄族，亜鉛族あるいはアルカリ
金属である。） で示されるジチオカルバメート誘導体である。The dithiocarbamate-based compound is represented by the general formula (1) (R 1 and R 2 are hydrogen or a hydrocarbon group or a benzene nucleus, n is an integer of 1 to 4, and M is an iron group, a zinc group, or an alkali metal.)

通常，上記化合物は，パーオキサイドのラジカルと反
応し，連鎖反応を停止するもので，酸化防止剤として従
来から用いられているものである。繊維への付与方法と
しては耐久性等の面から繊維製造段階すなわち重合又は
紡糸段階で上記化合物を添加する方法が通常行われる。
ところが，これらの添加剤を重合段階で添加すると，添
加剤の種類によってはポリマーのゲル化又は三次元化を
引き起こすおそれがあるため，重合の後期において重合
反応が終了してから添加するものである。そのため，毎
回オートクレーブの洗浄を必要とするため，コストが高
くなる欠点がある。一方，紡糸時に添加を行うと，やは
り上記化合物によりゲル化が生じ，紡糸圧力の上昇を引
き起こし，また，紡糸時添加の場合，ブレンド斑等によ
り均一な糸条を得ることが難しい。そこで，本発明者ら
は，アルカリ−オゾン系での劣化防止効果が顕著な処理
方法について不織布又は綿状物での後処理方法にてポリ
アミド繊維に固着させる手段について検討したものであ
る。Usually, the above compound reacts with a peroxide radical to terminate a chain reaction, and has been conventionally used as an antioxidant. As a method for applying the compound to the fiber, a method in which the above compound is added at the fiber production stage, that is, the polymerization or spinning stage, is usually performed in view of durability and the like.
However, if these additives are added at the polymerization stage, depending on the type of additives, the polymer may gel or become three-dimensional. Therefore, the additives are added after the polymerization reaction is completed in the latter stage of the polymerization. . For this reason, the autoclave needs to be washed each time, so that there is a disadvantage that the cost is increased. On the other hand, if the addition is performed at the time of spinning, the compound also causes gelation, causing an increase in the spinning pressure. In addition, when the addition is performed at the time of spinning, it is difficult to obtain a uniform yarn due to uneven blending or the like. Accordingly, the present inventors have studied a method of fixing the polyamide fiber by a post-processing method using a nonwoven fabric or a cotton-like material as to a processing method having a remarkable effect of preventing deterioration in an alkali-ozone system.

先ず，本発明におけるジチオカルバメート系化合物を
後処理にてポリアミド繊維に吸着させるには，できるだ
け均一に分散させるため，有機溶媒に溶解し，その後，
水系分散させることが好ましい。特に，処理を均一に行
うためには，分散状態が重要で，安定に分散させること
が必要である。このため，安定化を向上させる目的で乳
化剤や界面活性剤等を加えてもよい。次に，吸着効率を
高くする目的で被処理物を加温して拡散係数を高くす
る。さらに，吸着効率を高くするためには，上記添加剤
が吸着時に溶融してその溶融状態で吸着処理を行うこと
が好ましい。もし，上記添加剤の融点が処理温度より高
い場合，固体状態でポリアミド繊維への吸着が行われる
ことになり，そのため吸着処理中に添加剤同士の凝集が
起こり，系の均一性が阻害されるため好ましくない。本
発明では通常，処理を100℃近傍で行うために，該添加
剤の融点として100℃未満であることが必要である。こ
こで，本発明のセパレーター用フェルトの製造方法の一
つについて述べるが，本発明はこれに限定されるもので
はない。First, in order to adsorb the dithiocarbamate-based compound in the present invention to polyamide fibers by post-treatment, the compound is dissolved in an organic solvent in order to disperse as uniformly as possible.
It is preferable to carry out aqueous dispersion. In particular, in order to perform processing uniformly, the state of dispersion is important, and it is necessary to stably disperse. Therefore, an emulsifier, a surfactant or the like may be added for the purpose of improving stabilization. Next, the object to be treated is heated to increase the diffusion coefficient in order to increase the adsorption efficiency. Further, in order to increase the adsorption efficiency, it is preferable that the additive is melted at the time of adsorption and the adsorption treatment is performed in the molten state. If the melting point of the above additives is higher than the processing temperature, adsorption to the polyamide fibers will be performed in a solid state, so that the additives will coagulate during the adsorption process and the uniformity of the system will be impaired. Therefore, it is not preferable. In the present invention, since the treatment is usually performed at around 100 ° C., the melting point of the additive needs to be less than 100 ° C. Here, one method for producing the felt for a separator of the present invention will be described, but the present invention is not limited thereto.

先ず，ジチオカルバメート系化合物をメタノール，プ
ロパノールを初めとするアルコール類又は，アセトン，
メチルエチルメトン等のケトン類の溶剤に溶解せしめ，
適宜水に希釈させて希望する処理濃度にて煮沸下で10分
間以上処理を行う。処理液濃度については,0.5〜10％
owfで行うことが好ましい。処理液濃度が0.5％owf未満
の場合，ポリアミド繊維重量に比べて処理剤の濃度が低
く，ポリアミド繊維への吸尽量が少ないのでアルカリ−
オゾン系での劣化防止効果が低い。一方，処理剤濃度が
10％owfを超えるとアルカリ−オゾン系での劣化防止効
果は顕著であるが，処理液中に未吸着の処理剤が残留
し，コスト面から不利である。処理温度としては,70℃
〜煮沸温度が好ましい。煮沸温度より高くなると，ポリ
アミド繊維が湿熱劣化を引き起こし，繊維性能が悪くな
り好ましくない。一方,70℃より処理温度を低くする
と，吸着効率が悪く耐久性に乏しいものとなる。このた
め処理効果の均一性及び繊維物性面及び設備面から煮沸
処理が好ましい。なお，処理時間としては処理の均一性
から10分以上行うことが望ましい。First, alcohols such as methanol and propanol or acetone,
Dissolve in ketones solvent such as methyl ethyl methone,
The mixture is appropriately diluted with water and treated at the desired treatment concentration for 10 minutes or more under boiling. 0.5 to 10%
It is preferably performed with owf . When the concentration of the treatment liquid is less than 0.5% owf , the concentration of the treatment agent is lower than the weight of the polyamide fiber, and the amount of exhaustion to the polyamide fiber is small.
Poor degradation prevention effect in ozone system. On the other hand,
If it exceeds 10% owf , the effect of preventing deterioration in the alkali-ozone system is remarkable, but unadsorbed processing agent remains in the processing solution, which is disadvantageous in terms of cost. 70 ° C as processing temperature
~ Boiling temperature is preferred. If the temperature is higher than the boiling temperature, the polyamide fiber is deteriorated by moist heat, and the fiber performance deteriorates, which is not preferable. On the other hand, if the treatment temperature is lower than 70 ° C., the adsorption efficiency is poor and the durability is poor. For this reason, boiling treatment is preferable from the viewpoint of uniformity of treatment effect, fiber physical properties and equipment. The processing time is preferably at least 10 minutes from the viewpoint of processing uniformity.

このようにして得られた綿状ポリアミド繊維を開繊，
ニードルパンチを行い，希望する目付のフェルト状のポ
リアミドセパレーターを製造する。The cotton-like polyamide fiber thus obtained is opened,
Perform needle punching to produce a felt-like polyamide separator with the desired basis weight.

（作用） 本発明のポリアミドフェルトを用いると，アルカリ一
次電池で従来から問題であったアルカリ−オゾン系での
繊維劣化を抑制でき，しかも正負両極のセパレーターと
してアルカリ一次電池の寿命を高めることができる。こ
のように，アルカリ−オゾン系で本発明処理品のポリア
ミド繊維が劣化しにくい理由について必ずしも明確では
ないが，本発明者らは次のように推測している。(Function) By using the polyamide felt of the present invention, it is possible to suppress fiber deterioration in an alkali-ozone system, which has conventionally been a problem in an alkaline primary battery, and to prolong the life of the alkaline primary battery as a bipolar separator. . As described above, the reason why the polyamide fiber of the treated product of the present invention hardly deteriorates in an alkali-ozone system is not necessarily clear, but the present inventors speculate as follows.

従来，ジチオカルバメート系化合物を繊維の耐久性の
点から重合時又は溶融紡糸時に添加し，繊維に含有させ
る方法を採用していたが，本発明によれば処理剤を均一
微分散させ，しかも拡散係数を上げ，さらに処理剤を溶
融させることで初めて繊維内部に均一にかつ，強固に吸
着することが可能となる。この強固な吸着効果により，
アルカリ−オゾンで発生した放電生成物が繊維中に吸収
され，繊維の分子鎖を攻撃しないため劣化防止効果が顕
著となり，優れた抵抗性を持つものと考えられる。Conventionally, a method in which a dithiocarbamate-based compound is added during polymerization or melt spinning from the viewpoint of fiber durability and contained in the fiber has been adopted. However, according to the present invention, the treatment agent is uniformly finely dispersed, and furthermore, is dispersed. Only by increasing the coefficient and further melting the treating agent, it becomes possible to uniformly and firmly adsorb it inside the fiber. Due to this strong adsorption effect,
It is considered that the discharge product generated by the alkali-ozone is absorbed in the fiber and does not attack the molecular chain of the fiber, so that the effect of preventing deterioration becomes remarkable and that the material has excellent resistance.

（実施例） 以下，本発明を実施例によって説明する。先ず，実施
例で評価したポリアミドセパレーターの試験方法にまと
めて次に示す。(Examples) Hereinafter, the present invention will be described with reference to examples. First, the test methods of the polyamide separator evaluated in the examples are summarized below.

（１）ポリアミドセパレーター中の添加剤量 １）ジチオカルバメート系化合物の定量 ポリアミドフェルトを3g秤量した後，硝酸約50mlを加
え，湿式分解を行った。次に，濾紙にて濾過した後，全
体の量を100mlとした。この液を原子吸光光度計にて測
定し，金属の量からジチオカルバメート系化合物の分子
量を求め，本発明に用いられたジチオカルバメート系化
合物の濃度を算出した。(1) Amount of additive in polyamide separator 1) Determination of dithiocarbamate compound After weighing 3 g of polyamide felt, about 50 ml of nitric acid was added to perform wet decomposition. Next, after filtering through filter paper, the total amount was adjusted to 100 ml. This solution was measured with an atomic absorption spectrophotometer, the molecular weight of the dithiocarbamate compound was determined from the amount of metal, and the concentration of the dithiocarbamate compound used in the present invention was calculated.

（２）強力保持率 温度80℃の40％水酸化カリウム水溶液に電池用ポリア
ミドフェルトを浸漬し，次いで希硫酸を用いたBrodieオ
ゾン発生器にて0.25g/60分の速度でオゾンを注入し，処
理時間として20時間,50時間,100時間での処理を行い，
処理前後の強力値から強力保持率を求めた。(2) Strong retention rate Polyamide felt for batteries is immersed in a 40% aqueous solution of potassium hydroxide at a temperature of 80 ° C, and then ozone is injected at a rate of 0.25 g / 60 minutes using a Brodie ozone generator using dilute sulfuric acid. Perform processing at 20, 50, and 100 hours as processing time.
The strength retention was determined from the strength values before and after the treatment.

実施例１ 相対粘度2.7（96％硫酸100mlにナイロン６チップ1gを
精秤して溶解した時のウベローデ粘度計における粘度）
のナイロン６を通常の方法にて溶融紡糸，延伸，切断を
行い,1.5d×38mmのナイロン６ステープルを得た。この
ナイロン６ステープルを非イオン系界面活性剤（松本油
脂製薬（株）製，商品名：アクチノール100）にて精練
処理を行った。（精練条件60℃×30分，界面活性剤濃度
1g/） 次に，下記に示す条件にてアルカリ−オゾン系電解液
における繊維劣化防止加工を行った。 Example 1 Relative viscosity 2.7 (viscosity in an Ubbelohde viscometer when 1 g of nylon 6 chip was precisely weighed and dissolved in 100 ml of 96% sulfuric acid)
The nylon 6 was melt-spun, stretched and cut in the usual manner to obtain 1.5d × 38 mm nylon 6 staples. This nylon 6 staple was scoured with a nonionic surfactant (Actinol 100, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.). (Refining conditions 60 ° C x 30 minutes, surfactant concentration
1g /) Next, the fiber was treated to prevent fiber degradation in the alkaline-ozone electrolyte under the following conditions.

（処方１） ジチオカルバメート系化合物（商品名:Antigene NBC,住
友化学工業（株）製品，融点85℃） ３％owf 溶剤及び溶剤濃度（アセトン） 10wt％ 分散液組成 アセトン／水＝1:99（vol比） 浴比 1:30 昇温速度 ２℃／分 処理条件 煮沸×30分 処理後，水洗脱水を行い，開繊潤滑剤（丸菱油化工業
（株）製品，商品名：ポリマックスFT−402）0.2％付着
させて100℃×30分の条件にて乾燥を行った。(Formulation 1) Dithiocarbamate compound (trade name: Antigene NBC, manufactured by Sumitomo Chemical Co., Ltd., melting point: 85 ° C) 3% owf solvent and solvent concentration (acetone) 10 wt% Dispersion composition Acetone / water = 1:99 ( vol ratio) Bath ratio 1:30 Heating rate 2 ° C / min Processing conditions Boiling × 30 minutes After treatment, wash and dewater, open fiber lubricant (product of Marubishi Yuka Kogyo Co., Ltd., product name: Polymax FT) -402) Drying was carried out at 100 ° C. for 30 minutes with 0.2% adhered.

次いで，カードにて開繊し，ウエブを作成し，ニード
ルパンチにてフェルトを作成した。Next, the fiber was opened with a card, a web was formed, and a felt was formed with a needle punch.

得られた製品のアルカリ−オゾン系電解液での強力保
持率を求めた。結果を第１表に示す。The strength retention of the obtained product in an alkali-ozone-based electrolyte was determined. The results are shown in Table 1.

第１表 （比較例） 次に，本発明品と比較するため下記に示す比較試験を
行った。Table 1 (Comparative Example) Next, the following comparative test was performed for comparison with the product of the present invention.

比較例１ 実施例１で使用したナイロン６ステープルについて本
発明のアルカリ−オゾン系劣化防止加工を行わずに直列
電池セパレーター用ポリアミドフェルトを作成し，実施
例１に準じて性能評価を行った。結果を第１表に示す。Comparative Example 1 A polyamide felt for a series battery separator was prepared for the nylon 6 staple used in Example 1 without performing the alkali-ozone-based deterioration prevention treatment of the present invention, and the performance was evaluated in accordance with Example 1. The results are shown in Table 1.

比較例２ 実施例１で使用したジチオカルバメート系化合物の処
理濃度を0.3％owfに変更する以外，他の処理条件は全く
実施例１と同一条件で処理を行った。次いで，実施例１
に準じて電池セパレーター用ポリアミドフェルトを作成
し，性能評価を行った。結果を第１表に示す。Comparative Example 2 Except that the treatment concentration of the dithiocarbamate-based compound used in Example 1 was changed to 0.3% owf , the treatment was carried out under the same conditions as in Example 1 except for the other treatment conditions. Next, Example 1
Polyamide felts for battery separators were prepared according to the specifications and their performance was evaluated. The results are shown in Table 1.

第１表より明らかなように，本発明の電池セパレータ
ー用ポリアミドフェルトは，ジチオカルバメート系化合
物が吸尽されており，アルカリ−オゾン系電解液中にお
いて，強力低下防止効果があるものであった。一方，比
較例の場合，上記化合物の吸尽量が０又は少なすぎるた
め電解液中での強力劣化の大きいものであった。As is clear from Table 1, the polyamide felt for a battery separator of the present invention had a dithiocarbamate-based compound exhausted and had an effect of preventing a strong decrease in an alkali-ozone-based electrolyte. On the other hand, in the case of the comparative example, the exhaustion amount of the above compound was 0 or too small, so that the compound strongly deteriorated in the electrolytic solution.

（発明の効果） ジチオカルバメート系化合物がポリアミド繊維に均一
に吸尽されてなる本発明の電池セパレーター用ポリアミ
ドフェルトは，アルカリ−オゾン系での劣化防止効果が
顕著であり，正負極活物質より生成する放電生成物で劣
化しにくく，電池の寿命を延長できる効果を有するもの
で，広く利用できるものである。(Effect of the Invention) The polyamide felt for a battery separator of the present invention, in which the dithiocarbamate compound is uniformly exhausted by the polyamide fiber, has a remarkable effect of preventing deterioration in an alkali-ozone system and is formed from positive and negative electrode active materials. It has the effect of hardly deteriorating due to the generated discharge products and extending the life of the battery, and can be widely used.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ０６Ｍ 13/28 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location D06M 13/28

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】融点が100℃未満であるジチオカルバメー
ト系化合物を含有したポリアミド繊維からなる電池セパ
レーター用フェルト。1. A felt for a battery separator comprising a polyamide fiber containing a dithiocarbamate compound having a melting point of less than 100 ° C. 【請求項２】該ポリアミド繊維が融点100℃未満のジチ
オカルバメート系化合物の水分散液にて沸水処理されて
なる特許請求の範囲第１項記載の電池セパレーター用フ
ェルト。2. The felt for a battery separator according to claim 1, wherein said polyamide fiber is subjected to boiling water treatment with an aqueous dispersion of a dithiocarbamate compound having a melting point of less than 100 ° C. 【請求項３】ポリアミド繊維からなるフェルトを製造す
るに際し，融点が100℃未満であるジチオカルバメート
系化合物の0.5〜10％owf水分散液中にてポリアミド繊維
を浸漬処理し，ジチオカルバメート系化合物をポリアミ
ド繊維に吸尽させることを特徴とする電池セパレーター
用フェルトの製造方法。3. A process for producing a felt made of polyamide fiber, wherein the polyamide fiber is immersed in a 0.5 to 10% owf aqueous dispersion of a dithiocarbamate compound having a melting point of less than 100 ° C. to convert the dithiocarbamate compound. A method for producing a felt for a battery separator, wherein the felt is exhausted by a polyamide fiber. 【請求項４】煮沸下で10分間以上浸漬処理する特許請求
の範囲第３項記載の製造方法。4. The method according to claim 3, wherein the immersion treatment is carried out for at least 10 minutes under boiling.
JP62215729A 1987-08-28 1987-08-28 Felt for battery separator and method for producing the same Expired - Lifetime JP2636854B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215729A JP2636854B2 (en) 1987-08-28 1987-08-28 Felt for battery separator and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215729A JP2636854B2 (en) 1987-08-28 1987-08-28 Felt for battery separator and method for producing the same

Publications (2)

Publication Number Publication Date
JPS6459761A JPS6459761A (en) 1989-03-07
JP2636854B2 true JP2636854B2 (en) 1997-07-30

Family

ID=16677221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215729A Expired - Lifetime JP2636854B2 (en) 1987-08-28 1987-08-28 Felt for battery separator and method for producing the same

Country Status (1)

Country Link
JP (1) JP2636854B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014149985A (en) * 2013-02-01 2014-08-21 Nippon Kodoshi Corp Nonaqueous battery separator and nonaqueous battery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54131727A (en) * 1978-03-31 1979-10-13 Kanai Hiroyuki Separator for alkaline cell
JPS58147956A (en) * 1982-02-26 1983-09-02 Kanai Hiroyuki Separator for alkaline battery
JPS61214357A (en) * 1985-03-19 1986-09-24 Japan Vilene Co Ltd Alkaline cell separator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54131727A (en) * 1978-03-31 1979-10-13 Kanai Hiroyuki Separator for alkaline cell
JPS58147956A (en) * 1982-02-26 1983-09-02 Kanai Hiroyuki Separator for alkaline battery
JPS61214357A (en) * 1985-03-19 1986-09-24 Japan Vilene Co Ltd Alkaline cell separator

Also Published As

Publication number Publication date
JPS6459761A (en) 1989-03-07

Similar Documents

Publication Publication Date Title
JPS63288237A (en) Cord from poly-p-phenylene-terephthalaminde
US20120168983A1 (en) Method for Preparing Meta-Aramid Fibers
EP0450449B1 (en) Separator material for storage batteries and method for making the same
US3645936A (en) Flame-retardant regenerated cellulose filaments
JP4342065B2 (en) FIBRILLATE AND MANUFACTURING METHOD THEREOF
IE44492B1 (en) Synthetic filaments and fibres with high moisture absorption and water retention capacity
JP2636854B2 (en) Felt for battery separator and method for producing the same
DE69919563T2 (en) PEPTIED POLY (P-PHENYLENE TEREPHTHALAMIDE) FIBERS
KR102240199B1 (en) Manufacturing method of towel woven by polyester/polyamide microfiber and towel using the same
US3300431A (en) Non-woven fabric and adhesive composition therefor
CN112805419B (en) Cellulose fiber processing
US3989545A (en) Separators for a storage battery
CN117222790A (en) Treating agent for carbon fiber precursor and carbon fiber precursor
JP2002203530A (en) Battery separator and alkaline storage battery using the same
KR100393509B1 (en) Electrically conductive fiber
KR100487247B1 (en) Mesoporous Caborn Fibers and Method of Preparation Thereof
DE2409715C3 (en) Antistatic polyamide compositions, their use and process for their production
CN114589981B (en) Medical antistatic fabric and preparation method thereof
JPH02127571A (en) Treatment of fiber material for rubber reinforcement
JPH06316814A (en) Extraction type composite fiber and preparation thereof
JP3702979B2 (en) Black polybenzazole fiber
JP2005146428A (en) Nonwoven fabric
JPH0319949A (en) Felt for battery separator
JPS6139408B2 (en)
JPS647090B2 (en)