JP2706515B2 - Manganese dry cell - Google Patents
Manganese dry cellInfo
- Publication number
- JP2706515B2 JP2706515B2 JP13727289A JP13727289A JP2706515B2 JP 2706515 B2 JP2706515 B2 JP 2706515B2 JP 13727289 A JP13727289 A JP 13727289A JP 13727289 A JP13727289 A JP 13727289A JP 2706515 B2 JP2706515 B2 JP 2706515B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- oil furnace
- furnace black
- manganese
- amount
- 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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims description 21
- 229910052748 manganese Inorganic materials 0.000 title claims description 21
- 239000011572 manganese Substances 0.000 title claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 40
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 30
- 239000003792 electrolyte Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 18
- 239000007774 positive electrode material Substances 0.000 claims description 13
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011592 zinc chloride Substances 0.000 claims description 4
- 235000005074 zinc chloride Nutrition 0.000 claims description 4
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000007773 negative electrode material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 9
- 239000006230 acetylene black Substances 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005087 graphitization Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、マンガン乾電池に関し、特に正極合剤を改
良したマンガン乾電池に係わる。Description: TECHNICAL FIELD The present invention relates to a manganese dry battery, and more particularly, to a manganese dry battery having an improved positive electrode mixture.
［従来の技術］ 一般にマンガン乾電池は、正極活物質及び導電補助材
を兼ねる電解液保持材からなる正極合剤と、亜鉛などの
負極活物質と、塩化亜鉛（ZnCl2）を主体とした電解液
から構成されている。[Prior art] Generally, a manganese dry battery is composed of a positive electrode mixture composed of an electrolyte holding material also serving as a positive electrode active material and a conductive auxiliary material, a negative electrode active material such as zinc, and an electrolyte mainly composed of zinc chloride (ZnCl 2 ). It is composed of
ところで、従来のマンガン電池では上記正極合剤の一
方の成分である正極活物質として電解二酸化マンガンを
使用し、かつ他方の成分である上記導電補助材を兼ねる
電解液保持材として粒子の鎖状構造が著しく発達してい
て液体の保持力に優れ、かつ電気抵抗が低いアセチレン
ブラックを使用している。By the way, in the conventional manganese battery, electrolytic manganese dioxide is used as a positive electrode active material which is one component of the positive electrode mixture, and a chain structure of particles is used as an electrolytic solution holding material which also serves as the above-mentioned conductive auxiliary material which is the other component. Acetylene black, which has a remarkable development, has excellent liquid holding power, and has a low electric resistance.
［発明が解決しようとする課題］ 従来のマンガン乾電池に用いられているアセチレンブ
ラックは高価であるため、該アセチレンブラックの量を
減少させることが電池コストの低減化の上で望まれてい
る。[Problems to be Solved by the Invention] Since acetylene black used in a conventional manganese dry battery is expensive, it is desired to reduce the amount of acetylene black in order to reduce battery cost.
しかしながら、マンガン乾電池の放電性能は、前記正
極合剤の配合組成によってほぼ決定され、該正極合剤の
成分である正極活物質と電解液保持材の比率及び電解液
の該保持材への保持比率は自ずと制限され、特にアセチ
レンブラックの量を減少させると電解液の保持率が低下
するため、アセチレンブラックの量を減少させると放電
性能が低下する問題があった。However, the discharge performance of the manganese dry battery is substantially determined by the composition of the positive electrode mixture, and the ratio of the positive electrode active material and the electrolyte holding material, which are components of the positive electrode mixture, and the holding ratio of the electrolyte to the holding material. In particular, when the amount of acetylene black is reduced, the retention rate of the electrolytic solution is reduced. Therefore, when the amount of acetylene black is reduced, there is a problem that the discharge performance is reduced.
また、前記電解二酸化マンガンとアセチレンブラック
からなる正極合剤は貯蔵中にそれらの間で反応が進行し
て二酸化マンガンが消費されて容量劣化を招く問題があ
った。In addition, the positive electrode mixture composed of the electrolytic manganese dioxide and acetylene black has a problem in that the reaction proceeds between them during storage, manganese dioxide is consumed, and the capacity is deteriorated.
本発明は、上記従来の課題を解決するためになされた
もので、電解液保持能力を低下させることなく導電補助
材を兼ねる電解液保持材の量を減少でき、かつ放電性能
の優れた正極合剤を備えたマンガン乾電池を提供しよう
とするものである。The present invention has been made to solve the above-mentioned conventional problems, and it is possible to reduce the amount of an electrolyte holding material that also serves as a conductive auxiliary material without lowering the electrolyte holding capacity, and to provide a positive electrode having excellent discharge performance. It is intended to provide a manganese dry battery provided with an agent.
［問題点を解決するための手段］ 本発明は、二酸化マンガンを正極活物質とする正極合
剤、亜鉛を負極活物質とする負極、塩化亜鉛又は塩化ア
ンモニウムを主成分とする電解液を備えたマンガン乾電
池において、前記正極合剤に配合される導電補助材を兼
ねる電解液保持材として黒鉛層面間隔（d002）が3.40〜
3.49Åであるオイルファーネスブラックを用い、かつ該
オイルファーネスブラック1g当たり前記電解液を4.5〜
7.0g使用したことを特徴とするマンガン乾電池である。[Means for Solving the Problems] The present invention includes a positive electrode mixture using manganese dioxide as a positive electrode active material, a negative electrode using zinc as a negative electrode active material, and an electrolyte mainly containing zinc chloride or ammonium chloride. In a manganese dry battery, the graphite layer spacing (d 002 ) is 3.40 to 3.0 as an electrolyte holding material also serving as a conductive auxiliary material mixed in the positive electrode mixture.
Using oil furnace black of 3.49Å, and 4.5 g of the electrolyte per 1 g of the oil furnace black.
It is a manganese dry battery characterized by using 7.0 g.
上記正極合剤を構成する正極活物質である二酸化マン
ガンとしては、例えば電解二酸化マンガン、化学合成二
酸化マンガン、活性化化学二酸化マンガン、天然二酸化
マンガン等を挙げることができる。Examples of the manganese dioxide as the positive electrode active material constituting the positive electrode mixture include electrolytic manganese dioxide, chemically synthesized manganese dioxide, activated chemical manganese dioxide, and natural manganese dioxide.
上記導電補助材を兼ねる電解液保持材として用いるオ
イルファーネスブラックは、次のような方法により製造
される。The oil furnace black used as the electrolyte holding material also serving as the conductive auxiliary material is manufactured by the following method.
まず、液状炭化水素を炉内で分子状酸素及び水蒸気の
存在下で部分酸化せしめ、合成ガスと同時に副生カーボ
ンを生成する。この工程に用いられる液状炭化水素は、
炭素原子／水素原子が重量比で９以上のもので、例えば
ナフサの熱分解油（エチレンヘビーエンド）、芳香族炭
化水素にカーボンを混合した液状炭化水素（カーボンオ
イル）、芳香族系液状炭化水素にＣ重油など混合した混
合オイル等を挙げることができる。また、前記液状炭化
水素を部分酸化する際の水蒸気の量は液状炭化水素１ト
ンに対して200〜800kg、より好ましくは400〜800kgの範
囲である。前記炉内温度は、1200〜1450℃、より好まし
くは1300〜1450℃の範囲であり、反応時での圧力は10〜
80気圧、より好ましくは25〜80気圧の範囲である。First, liquid hydrocarbons are partially oxidized in a furnace in the presence of molecular oxygen and water vapor to produce by-product carbon simultaneously with synthesis gas. The liquid hydrocarbon used in this step is
Carbon atoms / hydrogen atoms having a weight ratio of 9 or more, for example, naphtha pyrolysis oil (ethylene heavy end), liquid hydrocarbon (carbon oil) obtained by mixing carbon with aromatic hydrocarbon, aromatic liquid hydrocarbon And a mixed oil obtained by mixing heavy oil C and the like. The amount of water vapor when partially oxidizing the liquid hydrocarbon is in the range of 200 to 800 kg, more preferably 400 to 800 kg, per ton of liquid hydrocarbon. The furnace temperature is in the range of 1200 to 1450 ° C, more preferably 1300 to 1450 ° C, and the pressure during the reaction is 10 to 1450 ° C.
The range is 80 atm, more preferably 25 to 80 atm.
次いで、前記副生カーボンを窒素雰囲気下300〜900℃
で0.5〜３時間乾燥し、更に不活性ガス雰囲気下、1000
〜3000℃で、0.5〜５時間加熱処理することにより目的
とするオイルファーネスブラックを製造する。なお、か
かる加熱処理はオイルファーネスブラック粒子表面の官
能基を除去するために行なうものである。Next, the by-product carbon is heated to 300 to 900 ° C. in a nitrogen atmosphere.
And dry for 0.5 to 3 hours.
The target oil furnace black is produced by heat treatment at 30003000 ° C. for 0.5 to 5 hours. The heat treatment is performed to remove functional groups on the surface of the oil furnace black particles.
上記オイルファーネスブラックは、黒鉛化度（黒鉛層
面間隔;d002）が3.40〜3.49Åであることが必要であ
る。なお、黒鉛化度を示す炭素網の面間隔d002は炭素材
料学会編炭素材料入門、第184〜192頁（炭素材料学会、
1979年刊行）に記載の学術振興会第117委員会によって
標準物質として測定したものである。The oil furnace black needs to have a degree of graphitization (graphite layer spacing; d 002 ) of 3.40 to 3.49 °. The plane spacing d 002 of the carbon net indicating the degree of graphitization is described in the Carbon Materials Society of Japan, Introduction to Carbon Materials, pp. 184-192 (Carbon Materials Society,
This was measured as a standard substance by the 117th Committee of the Japan Society for the Promotion of Science (published in 1979).
上記オイルファーネスブラックの黒鉛層面間隔；（d
002）を限定したのは次のような理由によるものであ
る。即ち、前記d002を3.40Å未満にすると黒鉛化が進ん
でいるため電気伝導性の点では良好であるが、比表面積
及び電解液の吸液性が低下し、重負荷放電特性の優れた
電池を得ることができなくなる。前記d002が3.49Åを越
えると、比表面積及び電解液の吸液性が増大するが、黒
鉛化の程度が低いため電気伝導性に劣り、その結果正極
合剤中に配合するにはオイルファーネスブラック自体の
量又は正極活物質である二酸化マンガン量を減少しなけ
ればならず、正極合剤の電気伝導性の低下、ひいては電
池の内部抵抗が増大して重負荷放電特性を悪化させる。Graphite layer spacing of oil furnace black; (d
002 ) is limited for the following reasons. That is, when the d 002 is less than 3.40 °, the graphitization is progressing, so that the electrical conductivity is good, but the specific surface area and the liquid absorption of the electrolytic solution are reduced, and the battery with excellent heavy load discharge characteristics is obtained. Can not be obtained. When the d 002 exceeds 3.49Å, the specific surface area and the liquid absorbing property of the electrolytic solution increase, but the degree of graphitization is low, so that the electrical conductivity is poor. The amount of black itself or the amount of manganese dioxide, which is a positive electrode active material, must be reduced, which lowers the electrical conductivity of the positive electrode mixture and increases the internal resistance of the battery, thereby deteriorating heavy load discharge characteristics.
上記正極合剤を構成する正極活物質としての二酸化マ
ンガンと電解液保持材としてのオイルファーネスブラッ
クの配合割合は、二酸化マンガン100重量部に対してオ
イルファーネスブラック10〜25重量部にすることが望ま
しい。この理由は、オイルファーネスブラックの量を10
重量部未満にすると抵抗が高くなり、かといってその配
合量が25重量部を越えると電池容量が低下する恐れがあ
るからである。The mixing ratio of manganese dioxide as the positive electrode active material and oil furnace black as the electrolyte holding material constituting the positive electrode mixture is desirably 10 to 25 parts by weight of oil furnace black with respect to 100 parts by weight of manganese dioxide. . The reason is that the amount of oil furnace black is 10
If the amount is less than 25 parts by weight, the resistance is increased. If the amount exceeds 25 parts by weight, the battery capacity may be reduced.
上記オイルファーネスブラック1g当たり上記塩化亜鉛
又は塩化アンモニウムを主成分とする電解液を4.5〜7.0
gとしたのは次のような理由によるものである。即ち、
単位電池の容積は規格化されているため、電解液量がオ
イルファーネス1g当たり7.0gを越えると、正極活物質で
ある二酸化マンガン量が減少して放電容量を低下させ
る。一方、電解液量がオイルファーネス1g当たり4.5未
満にすると放電反応に十分な電解液量とならず、放電性
能が低下する。4.5 to 7.0 electrolyte solution containing zinc chloride or ammonium chloride as a main component per 1 g of the oil furnace black.
The reason why g is set is as follows. That is,
Since the volume of the unit battery is standardized, when the amount of the electrolytic solution exceeds 7.0 g per 1 g of the oil furnace, the amount of manganese dioxide as the positive electrode active material decreases and the discharge capacity decreases. On the other hand, if the amount of the electrolyte is less than 4.5 per 1 g of the oil furnace, the amount of the electrolyte will not be sufficient for the discharge reaction, and the discharge performance will be reduced.
［作用］ 本発明によれば、正極合剤の一方の成分である導電補
助材を兼ねる電解液保持材として黒鉛層面間隔（d002）
が3.40〜3.49Åであるオイルファーネスブラックを用
い、かつ該オイルファーネスブラック1g当たり前記電解
液を4.5〜7.0g使用することによって、導電性に優れ、
かつ該電解液保持材の量を少なくしても充分に電解液保
持性能を維持できるため、該電解液保持材の量を減少さ
せた分、他方の成分である正極活物質の量を多くでき、
放電性能を向上できる。[Action] According to the present invention, the graphite layer spacing (d 002 ) is used as an electrolyte holding material also serving as a conductive auxiliary material, which is one component of the positive electrode mixture.
By using an oil furnace black of 3.40 to 3.49 か つ, and by using 4.5 to 7.0 g of the electrolytic solution per 1 g of the oil furnace black, excellent conductivity,
Further, since the electrolyte holding performance can be sufficiently maintained even when the amount of the electrolyte holding material is reduced, the amount of the positive electrode active material, which is the other component, can be increased by the amount of the electrolyte holding material reduced. ,
Discharge performance can be improved.
［実施例］ 以下、本発明の実施例を説明する。[Example] Hereinafter, an example of the present invention will be described.
実施例 まず、市販の電解二酸化マンガン65重量部、d002が3.
46Åのオイルファーネスブラック10重量部及び電位調整
材としての酸化亜鉛0.3重量部を充分に混合して正極合
剤とした後、この正極合剤に電解液（ZnCl225重量％、N
H4Cl2.5重量％濃度の水溶液）56重量部（オイルファー
ネスブラック1g当たり5.6gの電解液量）を加えて均一に
混合し、電解液を含む正極合剤を調製した。次いで、前
記正極合剤を負極としての亜鉛缶の中に収納してR14形
マンガン乾電池を組立てた。Example First, 65 parts by weight of commercially available electrolytic manganese dioxide, d 002 was 3.
After sufficiently mixing 10 parts by weight of 46% oil furnace black and 0.3 part by weight of zinc oxide as a potential adjusting material to form a positive electrode mixture, an electrolytic solution (ZnCl 2 25% by weight, N
56 parts by weight of an aqueous solution having a concentration of 2.5 wt% of H 4 Cl) (5.6 g of electrolyte per 1 g of oil furnace black) were added and uniformly mixed to prepare a positive electrode mixture containing the electrolyte. Next, the positive electrode mixture was housed in a zinc can as a negative electrode to assemble an R14 type manganese dry battery.
参照例１ オイルファーネスブラックとしてd002が3.38Åのもの
を用いた以外、前記実施例と同様な電解液を含む正極合
剤を調製し、これを用いてR14形マンガン乾電池を組立
てた。Except that d 002 as reference example 1 oil furnace black was used as a 3.38 Å, the positive electrode material mixture containing Example similar electrolyte solution was prepared and assembled R14 form manganese battery using the same.
参照例２ オイルファーネスブラックとしてd002が3.53Åのもの
を用いた以外、前記実施例と同様な電解液を含む正極合
剤を調製し、これを用いてR14形マンガン乾電池を組立
てた。Except that d 002 as reference example 2 oil furnace black was used as the 3.53A, the positive electrode material mixture containing Example similar electrolyte solution was prepared and assembled R14 form manganese battery using the same.
参照例３ 電解液量を40重量部（d002が3.46Åのオイルファーネ
スブラック1g当たり4.0gの電解液量）とした以外、前記
実施例と同様な電解液を含む正極合剤を調製し、これを
用いてR14形マンガン乾電池を組立てた。Reference Example 3 A positive electrode mixture containing the same electrolytic solution as in the above example was prepared except that the amount of the electrolytic solution was 40 parts by weight (the amount of the electrolytic solution was 4.0 g per 1 g of oil furnace black having d 002 of 3.46%). Using this, an R14 manganese dry battery was assembled.
参照例４ 電解液量を72重量部（d002が3.46Åのオイルファーネ
スブラック1g当たり7.2gの電解液量）とした以外、前記
実施例と同様な電解液を含む正極合剤を調製し、これを
用いてR14形マンガン乾電池を組立てた。Reference Example 4 A positive electrode mixture containing the same electrolytic solution as in the above example was prepared except that the amount of the electrolytic solution was changed to 72 parts by weight (d 002 was the amount of 7.2 g of the electrolytic solution per gram of the oil furnace black having 3.46%). Using this, an R14 manganese dry battery was assembled.
比較例 オイルファーネスブラックの代わりに市販のアセチレ
ンブラックを用いた以外、前記実施例と同様な電解液を
含む正極合剤を調製し、これを用いてR14形マンガン乾
電池を組立てた。Comparative Example A positive electrode mixture containing the same electrolytic solution as in the above example was prepared except that a commercially available acetylene black was used instead of the oil furnace black, and an R14 manganese dry battery was assembled using the same.
しかして、本実施例、参照例１〜４及び比較例のマン
ガン乾電池10個を用意し、これら電池について２Ω及び
75Ω連続放電試験を行なって放電持続性能を調べた。そ
の結果を下記第１表に示す。なお、放電持続性能は乾電
池10個の放電持続時間（終止電圧0.9V）の平均値として
示した。Thus, 10 manganese dry batteries of this example, Reference Examples 1 to 4 and Comparative Example were prepared, and 2 Ω and
A 75Ω continuous discharge test was performed to examine the discharge sustaining performance. The results are shown in Table 1 below. In addition, the discharge sustaining performance was shown as an average value of the discharge sustaining time (final voltage 0.9 V) of ten dry batteries.
上記第１表から明らかなように、本実施例のマンガン
乾電池は参照例１〜４及び比較例の同乾電池に比べて負
荷抵抗２Ωでの大電流放電、負荷抵抗75Ωでの微小電流
放電の両方の特性が向上され、放電性能が極めて優れて
いることがわかる。 As is clear from Table 1 above, the manganese dry batteries of this example both have a large current discharge at a load resistance of 2Ω and a small current discharge at a load resistance of 75Ω compared to the dry batteries of Reference Examples 1 to 4 and the comparative example. It can be seen that the characteristics of No. were improved and the discharge performance was extremely excellent.
なお、上記実施例では導電補助材を兼ねる電解液保持
材としてオイルファーネスブラックのみを用いたが、ア
セチレンブラックとして併用してもよい。In the above embodiment, only the oil furnace black was used as the electrolyte holding material also serving as the conductive auxiliary material, but it may be used in combination as acetylene black.
［発明の効果］ 以上詳述した如く、本発明によれば電解液の保持能力
を低下させることなく導電補助材を兼ねる電解液保持材
の量を減少させて正極活物質量を多くでき、かつ安価で
放電低能の優れたマンガン乾電池を提供できる。[Effects of the Invention] As described in detail above, according to the present invention, the amount of the positive electrode active material can be increased by reducing the amount of the electrolyte holding material also serving as the conductive auxiliary material without lowering the holding ability of the electrolyte, and An inexpensive manganese dry battery with low discharge capacity can be provided.
Claims (1)
剤、亜鉛を負極活物質とする負極、塩化亜鉛又は塩化ア
ンモニウムを主成分とする電解液を備えたマンガン乾電
池において、前記正極合剤に配合される導電補助材を兼
ねる電解液保持材として黒鉛層面間隔（d002）が3.40〜
3.49Åであるオイルファーネスブラックを用い、かつ該
オイルファーネスブラック1g当たり前記電解液を4.5〜
7.0g使用したことを特徴とするマンガン乾電池。1. A manganese dry battery comprising a positive electrode mixture containing manganese dioxide as a positive electrode active material, a negative electrode containing zinc as a negative electrode active material, and an electrolytic solution containing zinc chloride or ammonium chloride as a main component. The graphite layer spacing (d 002 ) is 3.40-
Using oil furnace black of 3.49Å, and 4.5 g of the electrolyte per 1 g of the oil furnace black.
A manganese dry battery characterized by using 7.0 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13727289A JP2706515B2 (en) | 1989-05-30 | 1989-05-30 | Manganese dry cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13727289A JP2706515B2 (en) | 1989-05-30 | 1989-05-30 | Manganese dry cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH031445A JPH031445A (en) | 1991-01-08 |
| JP2706515B2 true JP2706515B2 (en) | 1998-01-28 |
Family
ID=15194799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13727289A Expired - Lifetime JP2706515B2 (en) | 1989-05-30 | 1989-05-30 | Manganese dry cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2706515B2 (en) |
-
1989
- 1989-05-30 JP JP13727289A patent/JP2706515B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH031445A (en) | 1991-01-08 |
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