JP2009011968A - Melting treatment process of lithium battery - Google Patents
Melting treatment process of lithium battery Download PDFInfo
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- JP2009011968A JP2009011968A JP2007178563A JP2007178563A JP2009011968A JP 2009011968 A JP2009011968 A JP 2009011968A JP 2007178563 A JP2007178563 A JP 2007178563A JP 2007178563 A JP2007178563 A JP 2007178563A JP 2009011968 A JP2009011968 A JP 2009011968A
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
Description
本発明は、廃棄リチウム電池の溶融処理方法に関し、特に危険なリチウム電池を分別することにより、許容範囲で管理しながら安全に廃棄処理することができるリチウム電池の溶融処理方法に関するものである。 The present invention relates to a melting treatment method for a waste lithium battery, and particularly to a melting treatment method for a lithium battery that can be safely disposed of while being managed within an allowable range by separating dangerous lithium batteries.
電池類の廃棄については、以前は一般的なマンガン電池がほとんどであったが、近年のＣＯ２削減、周辺機器のモバイル化などの要因により新エネルギーの開発が急速に進み、電池業界においても様々な素材を用いた電池が開発されている。
なかでも、金属リチウムを負極に使用したリチウム電池は、起電力が大きく長寿命のため、その開発・生産量も飛躍的に増え続けており、それに伴いリチウム電池の廃棄量も増大している。
As for the disposal of batteries, most of the conventional manganese batteries used to be, but the development of new energy has rapidly progressed due to factors such as CO2 reduction in recent years and the movement of mobile peripheral devices. Batteries using materials have been developed.
Among them, lithium batteries using metallic lithium as a negative electrode have a large electromotive force and a long life, so that the development and production amount thereof are increasing dramatically, and the amount of lithium battery disposal is also increasing accordingly.
ところで、金属リチウムは、空気や水と急激に反応し水素ガスを発生させることから、発火や爆発を起こす。
この金属リチウムを使用したリチウム電池も、短絡等による発熱で内部組織が破壊され発火・爆発に至る可能性も十分あり、保管・運搬・処理には特別な注意を払い、取り扱わなければならない。
By the way, metallic lithium reacts rapidly with air and water to generate hydrogen gas, which causes ignition and explosion.
Lithium batteries using metallic lithium are also likely to be ignited / exploded due to destruction of the internal structure due to heat generated by a short circuit, etc., and must be handled with special care for storage / transport / treatment.
乾電池や乾電池類は、製鋼用電気炉に挿入し溶融することにより廃棄処理するようにしていたが、この一般の乾電池廃棄物の中にリチウム電池の混入が多数見受けられるようになり、電炉処理の際に、炎の吹き上げや破裂したリチウム電池の電炉前作業場への飛び出しが頻発している。
このため、製鋼用電気炉への挿入を１回につき３５ｋｇ以下としたが、この状況でも吹き上げや飛び出しが続いている。
Dry batteries and dry batteries were disposed of by melting them in a steelmaking electric furnace and melting them. However, many lithium batteries were mixed in this general dry battery waste. At the same time, flames are blown up and ruptured lithium batteries pop out to the pre-furnace workplace.
For this reason, although insertion into the electric furnace for steel making was made 35 kg or less at one time, blowing up and jumping out continued in this situation.
本発明は、上記従来のリチウム電池の溶融処理方法が有する問題点に鑑み、特に危険なリチウム電池を分別することにより、許容範囲で管理しながら安全に廃棄処理することができるリチウム電池の溶融処理方法を提供することを目的とする。 In view of the problems of the conventional lithium battery melting method, the present invention is a lithium battery melting process that can be safely disposed of while being managed within an acceptable range by separating particularly dangerous lithium batteries. It aims to provide a method.
上記目的を達成するため、本発明のリチウム電池の溶融処理方法は、リチウム電池を製鋼用電気炉に挿入して溶融処理するリチウム電池の溶融処理方法において、ＥＲリチウム電池を他の種類のリチウム電池と分別し、該分別したＥＲリチウム電池を所定の重量ずつ製鋼用電気炉に挿入して溶融処理することを特徴とする。 In order to achieve the above object, the method for melting a lithium battery according to the present invention is a method for melting a lithium battery in which the lithium battery is inserted into an electric furnace for steelmaking and is melted. The separated ER lithium batteries are inserted into a steelmaking electric furnace by a predetermined weight and melted.
この場合において、ＥＲリチウム電池を１０ｋｇ以下を１単位として製鋼用電気炉に挿入することができる。 In this case, the ER lithium battery can be inserted into a steelmaking electric furnace with 10 kg or less as one unit.
リチウム電池は、正極の材料の違いでＥＲ・ＣＲ・ＢＲなどの種類があり、このうちＥＲリチウム電池は正極に液体の塩化チオニルを使用しており、この液体の塩化チオニルは、空気に触れると白煙を発生するとともに、水と反応し有毒な亜硫酸ガスと塩化水素になるため、製鋼用電気炉の溶融処理において非常に危険なものと判明した。
本発明のリチウム電池の溶融処理方法によれば、リチウム電池を製鋼用電気炉に挿入して溶融処理するリチウム電池の溶融処理方法において、ＥＲリチウム電池を他の種類のリチウム電池と分別し、該分別したＥＲリチウム電池を所定の重量ずつ製鋼用電気炉に挿入して溶融処理することから、前記危険なＥＲリチウム電池を分別し、許容範囲で管理しながら安全に廃棄処理することができる。
There are different types of lithium batteries, such as ER, CR, and BR, depending on the material of the positive electrode. Among them, ER lithium batteries use liquid thionyl chloride for the positive electrode, and this liquid thionyl chloride is exposed to air. As it generates white smoke and reacts with water to form toxic sulfurous acid gas and hydrogen chloride, it has proved to be extremely dangerous in the melting process of steelmaking electric furnaces.
According to the lithium battery melting treatment method of the present invention, in the lithium battery melting treatment method in which the lithium battery is inserted into a steelmaking electric furnace, the ER lithium battery is separated from other types of lithium batteries, Since the sorted ER lithium batteries are inserted into a steelmaking electric furnace by a predetermined weight and melted, the dangerous ER lithium batteries can be sorted and safely disposed of while being managed within an allowable range.
この場合、ＥＲリチウム電池を１０ｋｇ以下を１単位として製鋼用電気炉に挿入することにより、許容範囲で安全かつ効率的にＥＲリチウム電池を廃棄処理することができる。 In this case, the ER lithium battery can be disposed of safely and efficiently within an allowable range by inserting the ER lithium battery into a steelmaking electric furnace with 10 kg or less as one unit.
以下、本発明のリチウム電池の溶融処理方法の実施の形態を、図面に基づいて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a lithium battery melting method according to the present invention will be described below with reference to the drawings.
図１〜図２に、本発明のリチウム電池の溶融処理方法の一実施例を示す。
このリチウム電池の溶融処理方法は、リチウム電池を製鋼用電気炉に挿入して溶融処理するに際し、予め、ＥＲリチウム電池を他の種類のリチウム電池と分別し、該分別したＥＲリチウム電池を所定の重量ずつ製鋼用電気炉に挿入して溶融処理するものである。
1 to 2 show an embodiment of a method for melting a lithium battery according to the present invention.
In this lithium battery melting treatment method, when a lithium battery is inserted into a steelmaking electric furnace and melted, the ER lithium battery is separated from other types of lithium batteries in advance, and the separated ER lithium battery is subjected to a predetermined process. It is inserted by weight into a steelmaking electric furnace and melted.
リチウム電池には、リチウム一次電池（円筒形、コイン・ボタン型）、リチウム二次電池（充電式）、リチウムイオン電池などがある。
これらのリチウム電池において、正極の材料の違いでＥＲ・ＣＲ・ＢＲなどの種類があり、このうちＥＲリチウム電池は正極に液体の塩化チオニルを使用している。
この液体の塩化チオニルは、空気に触れると白煙を発生するとともに、水と反応し有毒な亜硫酸ガスと塩化水素になるため、製鋼用電気炉の溶融処理において非常に危険である。
Examples of the lithium battery include a lithium primary battery (cylindrical shape, coin button type), a lithium secondary battery (rechargeable), and a lithium ion battery.
In these lithium batteries, there are types such as ER, CR, and BR depending on the material of the positive electrode, and among these, the ER lithium battery uses liquid thionyl chloride as the positive electrode.
This liquid thionyl chloride generates white smoke when exposed to air and reacts with water to form toxic sulfurous acid gas and hydrogen chloride, which is very dangerous in the melting process of an electric furnace for steel making.
ＥＲ・ＣＲ・ＢＲの判別は、通常、ラベルの表示に従うが、廃棄物として回収されるリチウム電池にはラベルのないものが混入している場合がある。
このような場合に、な種類の不明なリチウム電池は、ＥＲリチウム電池といっしょにして、他の種類のリチウム電池と分別する。
ＥＲリチウム電池及び種類の不明なリチウム電池は、所定の重量、具体的には、１０ｋｇ以下、より好ましくは、６ｋｇ以下（本実施例においては、約６ｋｇ）を１単位として１つの金属缶に収容し、この金属缶を１単位ずつスクラップ等の原材料と共に製鋼用電気炉に挿入するようにする。
また、ＥＲリチウム電池ではない種類の電池と事前確認できたものに関しては、本実施例においては、３５ｋｇ以下を１単位として１つの金属缶に収容し、この金属缶を１単位ずつスクラップ等の原材料と共に製鋼用電気炉に挿入するようにする。
Discrimination between ER, CR, and BR usually follows label display. However, lithium batteries that are collected as waste may contain unlabeled lithium batteries.
In such a case, an unknown type of lithium battery is separated from other types of lithium batteries together with the ER lithium battery.
The ER lithium battery and the lithium battery of unknown type are accommodated in one metal can with a predetermined weight, specifically 10 kg or less, more preferably 6 kg or less (in this embodiment, approximately 6 kg) as one unit. Then, this metal can is inserted into a steelmaking electric furnace together with raw materials such as scrap one by one.
In addition, regarding the battery that can be confirmed in advance as a type of battery that is not an ER lithium battery, in this example, 35 kg or less is stored as one unit in one metal can, and this metal can is stored as a unit of raw materials such as scrap. At the same time, it is inserted into an electric furnace for steel making.
かくして、本実施例のリチウム電池の溶融処理方法によれば、リチウム電池を製鋼用電気炉に挿入して溶融処理するに際し、ＥＲリチウム電池及び種類の不明なリチウム電池を他の種類のリチウム電池と分別し、該分別したＥＲリチウム電池及び種類の不明なリチウム電池を所定の重量ずつ製鋼用電気炉に挿入して溶融処理することから、前記した危険なＥＲリチウム電池を分別し、許容範囲で管理しながら安全に廃棄処理することができる。
この場合、ＥＲリチウム電池及び種類が不明なリチウム電池を１０ｋｇ以下（本実施例においては、約６ｋｇ）を１単位として製鋼用電気炉に挿入することにより、許容範囲で安全かつ効率的にＥＲリチウム電池を廃棄処理することができる。
Thus, according to the lithium battery melting method of the present embodiment, when the lithium battery is inserted into the steelmaking electric furnace and melted, the ER lithium battery and the unknown lithium battery are replaced with other types of lithium batteries. Since the ER lithium battery and the lithium battery of unknown type are sorted and inserted into a steelmaking electric furnace at a predetermined weight and melted, the dangerous ER lithium battery is separated and managed within an allowable range. It can be safely disposed of.
In this case, the ER lithium battery and the lithium battery whose type is unknown are inserted into a steelmaking electric furnace with 10 kg or less (about 6 kg in this embodiment) as one unit, so that ER lithium can be safely and efficiently within an allowable range. The battery can be disposed of.
以上、本発明のリチウム電池の溶融処理方法について、その実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができる。 As mentioned above, although the melting processing method of the lithium battery of the present invention has been described based on the examples thereof, the present invention is not limited to the configurations described in the above-described examples, and may appropriately be used within the scope not departing from the gist thereof. The configuration can be changed.
本発明のリチウム電池の溶融処理方法は、特に危険なリチウム電池を分別することにより、許容範囲で管理しながら安全に廃棄処理するという特性を有していることから、ＥＲリチウム電池が含まれるリチウム電池の溶融処理の用途に広く好適に用いることができる。 The lithium battery melting method according to the present invention has a characteristic that it is safely disposed of while being managed within an allowable range by separating particularly dangerous lithium batteries. It can be used widely and suitably for applications of battery melting treatment.
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| JP2007178563A JP4828478B2 (en) | 2007-07-06 | 2007-07-06 | Method for melting lithium battery |
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| JP2007178563A JP4828478B2 (en) | 2007-07-06 | 2007-07-06 | Method for melting lithium battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140345422A1 (en) * | 2011-04-15 | 2014-11-27 | Sumitomo Metal Mining Co., Ltd. | Method for recovering valuable metals |
| JP2018184622A (en) * | 2017-04-24 | 2018-11-22 | Ｊｆｅ条鋼株式会社 | Method of recovering manganese |
| WO2019092951A1 (en) * | 2017-11-09 | 2019-05-16 | 株式会社Ｓｕｂａｒｕ | Disposal method |
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| JPH10241750A (en) * | 1996-12-24 | 1998-09-11 | Canon Inc | Method and system for recovering battery member |
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- 2007-07-06 JP JP2007178563A patent/JP4828478B2/en not_active Expired - Fee Related
Patent Citations (6)
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| JPH01228586A (en) * | 1988-03-09 | 1989-09-12 | Nippon Jiryoku Senko Kk | Treatment of ni-cd battery waste |
| JPH04100584A (en) * | 1990-08-17 | 1992-04-02 | Ryoda Sato | Device for treating waste dry battery |
| JPH10241750A (en) * | 1996-12-24 | 1998-09-11 | Canon Inc | Method and system for recovering battery member |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140345422A1 (en) * | 2011-04-15 | 2014-11-27 | Sumitomo Metal Mining Co., Ltd. | Method for recovering valuable metals |
| US9203126B2 (en) * | 2011-04-15 | 2015-12-01 | Sumitomo Metal Mining Co., Ltd. | Method for recovering valuable metals |
| JP2018184622A (en) * | 2017-04-24 | 2018-11-22 | Ｊｆｅ条鋼株式会社 | Method of recovering manganese |
| WO2019092951A1 (en) * | 2017-11-09 | 2019-05-16 | 株式会社Ｓｕｂａｒｕ | Disposal method |
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| JP4828478B2 (en) | 2011-11-30 |
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