JPS6027147B2 - Manufacturing method of non-aqueous electrolyte battery - Google Patents
Manufacturing method of non-aqueous electrolyte batteryInfo
- Publication number
- JPS6027147B2 JPS6027147B2 JP52039171A JP3917177A JPS6027147B2 JP S6027147 B2 JPS6027147 B2 JP S6027147B2 JP 52039171 A JP52039171 A JP 52039171A JP 3917177 A JP3917177 A JP 3917177A JP S6027147 B2 JPS6027147 B2 JP S6027147B2
- Authority
- JP
- Japan
- Prior art keywords
- aqueous electrolyte
- electrolyte battery
- active material
- iron
- manufacturing
- 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
Links
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
【発明の詳細な説明】
この発明は硫化鉄を陽極活物質として用いる非水電解液
電池の製造方法の改良に係り、放電利用率の高い陽極活
物質を提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing a non-aqueous electrolyte battery using iron sulfide as an anode active material, and an object thereof is to provide an anode active material with a high discharge utilization rate.
この種の電池は平坦な放電特性を有し、単位重量当りの
放電容量が大きいため、種々の検討がなされているけれ
ども、従来の硫化鉄は２価の鉄塩溶液に硫化アルカリを
添加して沈澱物として得ていたが、この方法では硫化鉄
に硫酸アンモニウムなどの不純物が入り易く、腸極活物
質の純度が高くないうえ、生成した沈澱物の容積が大き
いため、洗浄や炉過に長時間を要するなどの欠点がああ
る。This type of battery has flat discharge characteristics and a large discharge capacity per unit weight, so various studies have been conducted, but conventional iron sulfide is made by adding alkali sulfide to a divalent iron salt solution. It was obtained as a precipitate, but with this method, impurities such as ammonium sulfate easily enter the iron sulfide, the purity of the active material is not high, and the volume of the precipitate formed is large, so it takes a long time to wash and filter. There are drawbacks such as the need for
この発明は２価の鉄塩と、加水分解によって徐々にィオ
ウィオンを生成する物質を反応させることによって上記
欠点を解消することを目的とする。The object of the present invention is to overcome the above-mentioned drawbacks by reacting a divalent iron salt with a substance that gradually forms iowion through hydrolysis.
この発明に用いられる２価の鉄塩としては、硫酸鉄、塩
化鉄、硝酸鉄などであり、また加水分解によって徐々に
ィオウィオンを生成する物質としては、チオ尿素もしく
はその譲導体、チオアセトアミド、チオカルバミン酸ア
ンモニウムなどである。Examples of divalent iron salts used in this invention include iron sulfate, iron chloride, iron nitrate, etc. Substances that gradually generate iowions through hydrolysis include thiourea or its derivatives, thioacetamide, thioacetamide, and thiourea. Ammonium carbamate, etc.
この発明に係る非水電解液電池Ａは、硫酸鉄とチオ尿素
を等モル加えた水溶液を加熱しながら反応させ、生成し
た沈澱物を炉過洗浄後に不活性雰囲気中において減圧下
で乾燥して得た硫化鉄を腸極活物質として用い、リチウ
ムを陰極活物質とし、炭酸プロピレンをジメトキシェタ
ンの混合溶媒に過塩素酸リチウムを１モル溶解したもの
を電解液として製造された。Non-aqueous electrolyte battery A according to the present invention is produced by reacting an aqueous solution containing equimolar amounts of iron sulfate and thiourea while heating, and drying the resulting precipitate under reduced pressure in an inert atmosphere after furnace cleaning. The obtained iron sulfide was used as the active material for the intestinal electrode, lithium was used as the active material for the negative electrode, and an electrolytic solution was prepared by dissolving 1 mole of lithium perchlorate in a mixed solvent of propylene carbonate and dimethoxychetane.
また、電池Ｂは硫酸鉄と硫化アンモニウムを反応させて
得た硫化鉄を腸極活物質として用い、陰極活物質および
電解液を電池Ａと同じもので製造された。Battery B was manufactured using iron sulfide obtained by reacting iron sulfate and ammonium sulfide as the active material for the cathode, and using the same cathode active material and electrolyte as those for battery A.
従来の硫酸鉄と硫化アンモニウムを反応させる方法は次
の‘１１式によって反応が進む。In the conventional method of reacting iron sulfate and ammonium sulfide, the reaction proceeds according to the following equation '11.
ＦｅＳ０４十（ＮＨ４）２Ｓ→ＦｅＳ↓＋（ＮＨ４）２
Ｓ０４ ・・・‘１）‘１１式の反応は急激に進行する
ため、生成したＦｅＳは微細な粒子の沈毅物となり、こ
のため沈降が遅く、結果として嵩高く、かつ、粒子間に
副生成物である（ＮＨ４）２Ｓ０４を抱き込む形となり
、沈澱物は炉過効果が悪く、不純物を多く含んだものと
なり、かつ、洗浄や炉週に長時間を要する。FeS04 (NH4)2S → FeS↓+(NH4)2
S04...'1) The reaction of formula 11 proceeds rapidly, so the FeS produced becomes a sediment of fine particles, which settles slowly, resulting in bulk and by-products between the particles. (NH4)2S04 is trapped, and the precipitate has a poor furnace filtration effect, contains many impurities, and requires a long time for cleaning and furnace heating.
これに対して本発明の方法を用いると、チオ尿素等のィ
オウ含有化合物の分解反応が徐々に進行するため、Ｆｅ
２十とＳ２−の反応が非常にゆっくりと進み、ＦｅＳの
結晶の生成が容易で、かつ、大きな結晶が得られる。On the other hand, when the method of the present invention is used, the decomposition reaction of sulfur-containing compounds such as thiourea proceeds gradually, so Fe
The reaction between 20 and S2- proceeds very slowly, making it easy to produce FeS crystals, and large crystals can be obtained.
よって副生物である（Ｎ比）２Ｓ０４などを粒子間に抱
き込むことなく、洗浄や炉過も短時間で、かつ、不純物
の少ないＦｅＳが得られる。Therefore, by-products such as (N ratio) 2S04 are not trapped between particles, cleaning and furnace filtration can be done in a short time, and FeS with few impurities can be obtained.
上記両電池Ａ，Ｂを水○の負荷抵抗で放電した際の陽極
活物質の放電利用率を図に示す。The figure shows the discharge utilization rate of the anode active material when both batteries A and B were discharged with a load resistance of water ○.
この発明は上記構成からなり、硫化鉄の沈澱生成には時
間を要するけれども、不純物の少ない、かつ、密度の大
きい硫化鉄を生成することができ、図面から明らかなよ
うに放電利用率の高い陽極活物質を得ることができ、さ
らに沈澱物の容積が小さいから、洗浄や炉過の時間を短
縮でき、作業能率の向上を図ることができる。This invention has the above configuration, and although it takes time to produce iron sulfide precipitate, iron sulfide with few impurities and high density can be produced, and as is clear from the drawing, it is an anode with high discharge utilization rate. Since the active material can be obtained and the volume of the precipitate is small, the time for washing and filtration can be shortened, and work efficiency can be improved.
図面は電池の放電特性図である。 The drawing is a diagram showing the discharge characteristics of the battery.
Claims (1)
ンを生成する物質を反応させて生成した硫化鉄を乾燥し
た後陽極活物質として用いることを特徴とする非水電解
液電池の製造方法。1. Production of a non-aqueous electrolyte battery characterized in that iron sulfide produced by reacting a divalent iron salt with a substance that gradually produces sulfur ions through hydrolysis is used as an anode active material after drying. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52039171A JPS6027147B2 (en) | 1977-04-05 | 1977-04-05 | Manufacturing method of non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52039171A JPS6027147B2 (en) | 1977-04-05 | 1977-04-05 | Manufacturing method of non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53123837A JPS53123837A (en) | 1978-10-28 |
| JPS6027147B2 true JPS6027147B2 (en) | 1985-06-27 |
Family
ID=12545663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52039171A Expired JPS6027147B2 (en) | 1977-04-05 | 1977-04-05 | Manufacturing method of non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027147B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819860A (en) * | 1981-07-30 | 1983-02-05 | Toshiba Corp | Manufacture of positive electrode for organic solvent battery |
| JP5685395B2 (en) * | 2010-06-11 | 2015-03-18 | Ｄｏｗａエコシステム株式会社 | Method for producing iron sulfide |
| EP3806207B1 (en) * | 2018-09-18 | 2026-04-01 | LG Energy Solution, Ltd. | Method for preparing iron sulfide |
-
1977
- 1977-04-05 JP JP52039171A patent/JPS6027147B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53123837A (en) | 1978-10-28 |
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