JPS62287580A - Chargeable battery - Google Patents
Chargeable batteryInfo
- Publication number
- JPS62287580A JPS62287580A JP61129649A JP12964986A JPS62287580A JP S62287580 A JPS62287580 A JP S62287580A JP 61129649 A JP61129649 A JP 61129649A JP 12964986 A JP12964986 A JP 12964986A JP S62287580 A JPS62287580 A JP S62287580A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- oil
- battery
- added
- moisture
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 14
- 239000003921 oil Substances 0.000 claims description 16
- 235000019198 oils Nutrition 0.000 claims description 16
- 239000005486 organic electrolyte Substances 0.000 claims description 11
- 229910000733 Li alloy Inorganic materials 0.000 claims description 6
- 239000001989 lithium alloy Substances 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 239000010409 thin film Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は、移動用直流電源、バックアップ用電源など【
用いる充電可能な電池に関する。[Detailed Description of the Invention] 3. Detailed Description of the Invention Field of Industrial Application The present invention is applicable to mobile DC power supplies, backup power supplies, etc.
The present invention relates to a rechargeable battery for use.
従来の技術
正極に活性炭、負極にリチウム合金、電解液としズ無水
の有機電解液を用いる電池は、一般的には正極が比表面
積１２ｏｏｎｔ′／を以上でしかも高純度の活性炭を、
負極にＡｔ、Ｓｎ、Ｐｂ等の合金にリチウムを吸蔵させ
たリチウム合金が使用され電解液として過塩素酸リチウ
ム、過塩酸アンモニウムなどを溶解した無水の有機電解
液を用い、セパレータとして耐酸化性にすぐれる多孔性
樹脂布やガラス繊維布などが角いられている。Conventional technology Batteries that use activated carbon as a positive electrode, a lithium alloy as a negative electrode, and an anhydrous organic electrolyte as an electrolyte generally have a positive electrode with a specific surface area of 12 oont'/ or more and are made of highly purified activated carbon.
A lithium alloy in which lithium is occluded in an alloy such as At, Sn, or Pb is used for the negative electrode, and an anhydrous organic electrolyte in which lithium perchlorate, ammonium perchlorate, etc. are dissolved is used as the electrolyte, and the separator is oxidation-resistant. Excellent porous resin cloth and glass fiber cloth are used.
この種の電池は、負極にリチウム合金を用いているため
に正極に用いる活性炭や、有機電解液などの電池を構成
する他の部品・材料中の水分の影響と、電池を構成した
後封ロカシメ部分を介しての外部からの水分進入の影響
が、電池の各種特性に悪影響を及ぼし、信頼性の劣化な
どが間謳となる。This type of battery uses a lithium alloy for the negative electrode, so it is susceptible to the effects of moisture in other parts and materials that make up the battery, such as the activated carbon used in the positive electrode and the organic electrolyte, as well as the rear sealing and crimping of the battery. The influence of moisture entering from the outside through these parts has an adverse effect on various characteristics of the battery, leading to deterioration in reliability.
この中で、とくに電解液は外部からの水分の影響をうけ
やすいものである。Among these, the electrolyte is particularly susceptible to the influence of external moisture.
したがって、外部からの水分の影響を受けＫくくするた
めに、一般的には電池をカシメ封口する際に、封口部の
カール部分を強く締め付けたり、封口部分に封止剤を塗
布したシして水分の進入を防止している。Therefore, in order to prevent K from being affected by external moisture, generally when sealing a battery, the curled part of the sealing part is strongly tightened or a sealant is applied to the sealing part. Prevents moisture from entering.
発明が解決しようとする問題点
前者の封口部のカール部分を強く締め付ける場合は、あ
まり強く締め付けるとガスケットの切断などを引き起こ
して内部短絡の原因となり、充・放電ができなくなる欠
点がある。また、後者の封口部分に封止剤を塗布する方
法は、電解液として有機電解液を使用しているために長
期間保存した場合にも溶解しない材質を使用する必要が
ある。Problems to be Solved by the Invention In the former case, when the curled part of the sealing part is strongly tightened, there is a disadvantage that if it is tightened too strongly, it may cause breakage of the gasket and cause an internal short circuit, making charging and discharging impossible. Furthermore, since the latter method of applying a sealant to the sealing part uses an organic electrolyte as the electrolyte, it is necessary to use a material that will not dissolve even when stored for a long period of time.
ところが−有機電解液に溶解しない材料の多くは、硬度
があり、封止剤としての役目は劣るという欠点があった
。However, many of the materials that do not dissolve in the organic electrolyte have a drawback in that they are hard and have an inferior role as a sealant.
本発明は、正極に活性炭、負極にリチウム合金、電解液
として無水の有機電解液を用いる充電可能な電池におい
て、無水の有機電解液の中にオイルを添加することによ
って外部からの水分進入に起因した電池の各種特性のバ
ラツキを小さくし、しかも安価に提供することを目的と
しだものである。The present invention is a rechargeable battery that uses activated carbon as a positive electrode, a lithium alloy as a negative electrode, and an anhydrous organic electrolyte as an electrolyte. The purpose of this invention is to reduce variations in the various characteristics of batteries and to provide them at low cost.
問題点を解決するだめの手段
本発明は前記の目的を達成するだめに、あらかじめ無水
の有機電解液の中にオイルを添加して電池を構成したも
のである。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is a battery constructed by adding oil to an anhydrous organic electrolyte in advance.
作 用
詳しくは、無水の有機電解液中に添加されたオイルが液
中に分散状態となシ、電池を構成する正極活性炭、リチ
ウム金属などの材料の表面で極薄い被膜を形成し、外部
から進入した水分に対し撥水性を持つだめ、とくに水分
に活性であるリチウムを保護する役目を果し、水分によ
る劣化を防止することが可能である。In detail, the oil added to the anhydrous organic electrolyte is not dispersed in the liquid and forms an extremely thin film on the surface of the positive electrode activated carbon, lithium metal, and other materials that make up the battery. It has water repellency against invading moisture, and in particular plays a role in protecting lithium, which is active against moisture, and can prevent deterioration due to moisture.
また、添加するオイルは有機電解液に対して安定である
ためには、添加して細かく分散するようなオレフィン系
又はエステル系の植物油が最適である。しかも前記オイ
ルの単体よりも混合油である場合、水分に対する安定は
さらに向上する。In addition, in order for the oil to be added to be stable with respect to the organic electrolyte, an olefin-based or ester-based vegetable oil that can be added and finely dispersed is optimal. Furthermore, when the oil is a mixture rather than a single oil, the stability against moisture is further improved.
実施例 以下実施例によって説明する。Example This will be explained below using examples.
まず、正極集電体６としてチタン金属のラス板を１４．
０ｆｆｌの大きさに打ち抜き、直径２０．Ｏｆｆのステ
ンレス鋼からなる正極ケース１の内底中央部に電気溶接
した。つぎに、表面積１ｓｏｏｍ、厚さｏ、ｅＨの活性
炭不織布４を直径１４．ＣＭＨの大きさに打ち抜き、前
記電気溶接したチタンのラス板上に載置した。First, a lath plate of titanium metal is used as the positive electrode current collector 6 at 14.
Punch out to size 0ffl, diameter 20. It was electrically welded to the center of the inner bottom of the positive electrode case 1 made of Off stainless steel. Next, an activated carbon non-woven fabric 4 with a surface area of 1 soom and a thickness of o and eH is placed with a diameter of 14 mm. It was punched out to the size of CMH and placed on the electrically welded titanium lath plate.
一方負極集電体８としてニッケル金属のネットを直径１
３．（］Ｉの大きさに打ち抜き、直径１９ 、 ＯＩＲ
Ｍのステンレス鋼からなる負極封口板２の内底中央部に
電気溶接した。On the other hand, as the negative electrode current collector 8, a nickel metal net with a diameter of 1
3. (] Punch out to size I, diameter 19, OIR
It was electrically welded to the center of the inner bottom of the negative electrode sealing plate 2 made of M stainless steel.
これに、負極７であるリチウム合金を直径１３・Ｏｆｆ
に打ち抜き、負極封口板内のニッケルネット板上に載置
する。さらにポリプロピレン不織布からなるセパレータ
ー６を載置し、ポリプロピレンからなる封口リング３を
封口板２に嵌合した。To this, the lithium alloy which is the negative electrode 7 is placed with a diameter of 13 mm.
Punch it out and place it on the nickel net plate inside the negative electrode sealing plate. Furthermore, a separator 6 made of a polypropylene nonwoven fabric was placed, and a sealing ring 3 made of polypropylene was fitted to the sealing plate 2.
そして、プロピレンカーボネートと１．２−ジメトキシ
エタンを溶損比で１：１に混合し、これにＬｉ（Ｊ）４
を１モル／ｌの濃度に添加し、さらにオレフィン系オイ
ルを６重量％添加したものを電解液として、１６０町正
・負極に注液した。これを乾燥雰囲気中にて数分間乾燥
した後、正・負極をカップリングし、封口して電池とし
た。これをＡとする。Then, propylene carbonate and 1,2-dimethoxyethane were mixed at a dissolution ratio of 1:1, and Li(J)4 was added to this mixture.
was added to a concentration of 1 mol/l, and 6% by weight of olefin oil was added as an electrolytic solution, which was injected into the positive and negative electrodes of 160 towns. After drying this in a dry atmosphere for several minutes, the positive and negative electrodes were coupled and sealed to form a battery. Let this be A.
比較例として、電解液の中にオイルを添加しないもの以
外は実施例と同じ方法で構成した電池をｎとする。As a comparative example, a battery constructed in the same manner as in the example except that no oil was added to the electrolyte was designated as n.
これらＡ、Ｂの各電池を各１０個用意し、６σＣ−９６
％ＲＨの雰囲気中に保存し、１０００時間後の内部抵抗
の測定と１ｍＡ での放電を行ない放電容量を測定した
。その結果を表−１に示した。Prepare 10 each of these batteries A and B, and use 6σC-96
The battery was stored in an atmosphere of %RH, and the internal resistance was measured after 1000 hours, and the discharge capacity was measured by discharging at 1 mA. The results are shown in Table-1.
表−１から明らかなようにｓ ｏ ℃−湿度９０％、１
０００時間後においても、従来に較べ本発明によるもの
は、内部抵抗が小さく、放電容量が大きいとともにその
バラツキδが非常に小さい。このことは本発明が電池の
各種特性に及ぼす効果が大きいことを示すものである。As is clear from Table 1, s o ℃ - Humidity 90%, 1
Even after 1,000 hours, the device according to the present invention has a smaller internal resistance, a larger discharge capacity, and a very small variation δ compared to the conventional device. This shows that the present invention has a great effect on various characteristics of the battery.
また、電解液に添加するオイルの比率を１．３゜５．７
．１０重量％に変化させたものと混合油を６重量％添加
したものを試作し、実施例と同様の方法で構成し前記と
同様のテスト結果を表−２に示した。Also, the ratio of oil added to the electrolyte was 1.3°5.7
．． Two samples were produced, one in which the oil content was changed to 10% by weight and the other in which 6% by weight of mixed oil was added, and constructed in the same manner as in the example, and the same test results as above are shown in Table 2.
表−２
この表よシ、有機電解液に対するオイルの添加量は、３
重量％以内であれば効果が弱くなシ、１゜重量％よりも
多くなると、構成された直後の電池内部抵抗が高くなシ
充・放電効率も悪くなる。従って３〜１０重量の範囲で
オイルを添加した本発明は前記従来品より優れているこ
とが明らかである。Table 2 According to this table, the amount of oil added to the organic electrolyte is 3
If it is less than 1% by weight, the effect will be weak, and if it exceeds 1% by weight, the internal resistance of the battery will be high immediately after it is constructed, and the charging and discharging efficiency will be poor. Therefore, it is clear that the present invention, in which oil is added in a range of 3 to 10 weights, is superior to the conventional product.
なお前記の実施例においては扁平なコイン型電池で説明
したが、この他にボタン型あるいは円筒型電池において
も同様の効果が期待できる。In the above embodiments, a flat coin-type battery was used, but the same effect can be expected with a button-type or cylindrical battery.
発明の効果
以上のようしで本発明における充電可能な電池は、従来
例に比較して、容易かつ安価に製造でき、長期の多湿保
存に耐えるとともにその信頼性も向上し、応用範囲が広
いものである。Effects of the Invention As described above, the rechargeable battery of the present invention can be manufactured easily and inexpensively compared to conventional examples, can withstand long-term humid storage, has improved reliability, and has a wide range of applications. It is.
図面は本発明の実施例におけるコイン型電池の断面図で
ある。
１・・・・・・正極ケース、２・・・・・・封口板、３
・・・・・・封口リング、４・・・・・・正極、６・・
・・・・正極集電体、６・・・・・・セパレータ、７・
・・・・・負極、８・・・・・・負極集電体。The drawing is a cross-sectional view of a coin-type battery in an embodiment of the present invention. 1...Positive electrode case, 2...Sealing plate, 3
...Sealing ring, 4...Positive electrode, 6...
... Positive electrode current collector, 6 ... Separator, 7.
...Negative electrode, 8...Negative electrode current collector.
Claims (3)
て無水の有機電解液を用いる電池であって、電解液中に
オイルが添加されていることを特徴とした充電可能な電
池。(1) A rechargeable battery that uses activated carbon as a positive electrode, a lithium alloy as a negative electrode, and an anhydrous organic electrolyte as an electrolyte, characterized in that oil is added to the electrolyte.
の植物油単体かもしくは混合油からなる特許請求の範囲
第１項記載の充電可能な電池。(2) The rechargeable battery according to claim 1, wherein the added oil is an olefin-based or ester-based vegetable oil alone or a mixture thereof.
加率が電解液の３〜１０重量％である特許請求の範囲第
１項記載の充電可能な電池。(3) The rechargeable battery according to claim 1, wherein the amount of oil alone or mixed oil added to the electrolyte is 3 to 10% by weight of the electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61129649A JPS62287580A (en) | 1986-06-04 | 1986-06-04 | Chargeable battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61129649A JPS62287580A (en) | 1986-06-04 | 1986-06-04 | Chargeable battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62287580A true JPS62287580A (en) | 1987-12-14 |
Family
ID=15014737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61129649A Pending JPS62287580A (en) | 1986-06-04 | 1986-06-04 | Chargeable battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62287580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010283116A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same |
-
1986
- 1986-06-04 JP JP61129649A patent/JPS62287580A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010283116A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Method of manufacturing electrochemical capacitor, and electrochemical capacitor manufactured using the same |
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