JPH0355762A - Lithium battery - Google Patents
Lithium batteryInfo
- Publication number
- JPH0355762A JPH0355762A JP18895989A JP18895989A JPH0355762A JP H0355762 A JPH0355762 A JP H0355762A JP 18895989 A JP18895989 A JP 18895989A JP 18895989 A JP18895989 A JP 18895989A JP H0355762 A JPH0355762 A JP H0355762A
- Authority
- JP
- Japan
- Prior art keywords
- lithium battery
- discharge
- capacitor
- voltage
- lithium
- 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
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 49
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000003990 capacitor Substances 0.000 claims abstract description 23
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 8
- -1 lithium halide Chemical class 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002641 lithium Chemical class 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、リナウム電池、即ち負極としてリチウｌ１
が用いられているリチウム電池に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a linium battery, that is, a lithium battery using lithium l1 as a negative electrode.
This relates to lithium batteries in which lithium batteries are used.
［従来の技術］
第４図は例えば雑誌「ジエイ・エレクトロゲｌ、ソク：
エレクトロケミカル・サイエンス・アンド・テクノロジ
ー（ Ｊ ． Ｅ ｌｅｃＬｒｏｃｈｅｍ． Ｓ ｏｃ
：ＥＬＥＣＴＲＯＣＩＩＥＨＩＣＡＬ ＳＣＩＥＮＣ
Ｅ ＡＮＤ ＴＥＣＩＩＮＯＬＯＧＹ）Ｊ第１３４巻第
１号１９８７年１月号第１８頁〜第２４頁に掲載された
ジーン・ダブリュ・ボイド（ Ｊ ｅａｎ Ｗ ． Ｂ
ｏｙｃｌ）氏著の論文『生長フィルムへのポリビニー
ル・ク？ライド及びＦｅの影響並びにＳＯＣ＋■電解質
での電圧遅延』に示されたオキシハロゲン化物を正極活
物質とする従来の塩化チオニル型リチウム電池の放電時
間と電池電圧との関係を示すグラフ図である．
従来の塩化チオニル型リチウム電池は、第４図に示され
るように、放電電流が４３ｚＡのとき、放電直後の約１
０秒間、公称電圧である３．ＯＶの電圧を越えていない
．
このような、いわゆる電圧遅延が生じるのは、放電前の
塩化チオニル型リチウム電池のリチウム極表面に、内部
抵抗の大きいハロゲン化リチウム膜が形成されているた
めである。即ち、放電後、このハロゲン化リチウム膜が
薄くなるまでに時間がかかり、この間に電圧のオーム損
が生じるため、上記の電圧遅延が生じる。[Prior art] Figure 4 shows, for example, the magazine ``Gei Electrogel, Soku:
Electrochemical Science and Technology (J. ElecLrochem. Soc.
:ELECTROCIIEHICAL SCIENC
Jean W.
oycl)'s paper ``Polyvinyl chloride on growth film? 1 is a graph showing the relationship between the discharge time and battery voltage of a conventional thionyl chloride-type lithium battery using an oxyhalide as a positive electrode active material, which was shown in ``Influence of Fe and SOC+Voltage Delay in Electrolyte''. As shown in Figure 4, a conventional thionyl chloride type lithium battery has a discharge current of about 1
3.0 seconds at nominal voltage. The voltage does not exceed OV. This so-called voltage delay occurs because a lithium halide film with high internal resistance is formed on the lithium electrode surface of the thionyl chloride type lithium battery before discharge. That is, after discharging, it takes time for the lithium halide film to become thin, and during this time an ohmic loss of voltage occurs, resulting in the voltage delay described above.
このハロゲン化リチウム膜は、内部抵抗を増大させて電
圧遅延を生じさせる要因ではあるが、方では保存中の自
己放電を抑えるために必要不可欠のものである。従って
、この膜を薄くすることにより、電圧遅延は緩和される
が、保存容量は低下してしまう。Although this lithium halide film increases internal resistance and causes voltage delay, it is also essential for suppressing self-discharge during storage. Therefore, by making this film thinner, the voltage delay is alleviated, but the storage capacity is reduced.
［発明が解決しようとする課！Ｍ］
上記のような従来の塩化チオニル型リチウム電池におい
ては、電圧遅延が生じるため、放電直後に公称電圧が確
保できず、またこれを避けるためにハロゲン化リチウム
膜の膜厚を薄くすると、保存容量が低下してしまうとい
う問題点があり、このような問題点を解決しなければな
らないという課題を有していた。[The problem that the invention tries to solve! M] In conventional thionyl chloride lithium batteries as described above, a voltage delay occurs, making it impossible to secure the nominal voltage immediately after discharge.In order to avoid this, reducing the thickness of the lithium halide film reduces storage There is a problem that the capacity decreases, and it is necessary to solve this problem.
この発明は、上記のような課題を解決するためになされ
たもので、保存容量を低下させることなく、放電直後に
も公称電圧を確保することができるリチウム電池を得る
ことを目的とする。This invention was made to solve the above-mentioned problems, and aims to obtain a lithium battery that can maintain a nominal voltage even immediately after discharge without reducing storage capacity.
［課題を解決するための千段］
この発明に係るリチウム電池は、リチウム電池本体にコ
ンデンサを電気的に並列に接続したものである。[A thousand steps to solve the problem] A lithium battery according to the present invention has a capacitor electrically connected in parallel to a lithium battery body.
［作用コ
この発明においては、未放電時にリチウム電池本体によ
りコンデンサに対して充電を行い、放電直後にリチウム
電池に加えてコンデンサからも放電を行う。[Operations] In this invention, the capacitor is charged by the lithium battery body when it is not discharged, and immediately after discharge, the capacitor is discharged in addition to the lithium battery.
［実施例コ
以下、この発明をその一実施例を示す図に基づいて説明
する。[Embodiment] The present invention will be explained below based on the drawings showing one embodiment of the invention.
第１図はこの発明によるリチウム電池の一実施例を示す
正面図である。FIG. 1 is a front view showing an embodiment of a lithium battery according to the present invention.
図において、符号（１）は従来のリチウム電氾と同様の
オキシハロゲン化物を正矯活物質とした塩化チオニル型
のリチウム電池本体であり、このリチウム電池本体（１
〉には例えば東洋高砂乾電池（株）製の塩化チオニルリ
チウム電池のＥＲ６聖（ＡＡサイズ．公称容量２．０Ａ
ｈ ，公称電圧３．ＯＶ ）が用いられる。（２）は
リチウム電池本体（１〉の外周部に螺旋状に巻かれてい
るＣ＝１００μＦのコンデンサ、〈３）はこれらリチウ
ム電池本体（１）及びコンデンサ（２〉の一重に設けら
れた負極板、（４〉は他側に設けられた正極板であり、
これら負極板（３）及び正極板（４）に対してリチウム
電池本体（１）及びコンデンサ（２）は電気的に並列に
接続されている。In the figure, reference numeral (1) is a thionyl chloride type lithium battery body that uses oxyhalide as a corrective active material, similar to conventional lithium batteries, and this lithium battery body (1)
> is, for example, a lithium thionyl chloride battery manufactured by Toyo Takasago Dry Battery Co., Ltd., ER6 (AA size, nominal capacity 2.0A).
h, nominal voltage 3. OV) is used. (2) is a C=100μF capacitor spirally wound around the outer circumference of the lithium battery body (1), and (3) is the negative electrode provided in a single layer on the lithium battery body (1) and the capacitor (2). plate, (4> is the positive electrode plate provided on the other side,
The lithium battery body (1) and the capacitor (2) are electrically connected in parallel to the negative electrode plate (3) and positive electrode plate (4).
上述したように構成されたリチウム電池においては、未
放電時にリチウム電池本体（１）によりコンデンサ（２
〉が充電される．この充電の容量は、リチウム電氾本体
（１〉の起電圧３．６７Ｖの二乗とコンデンサ（２）の
キャバシタンス１００μＦとの積に１／２をかけた６．
７Ｘ １０−’クーロンである。In the lithium battery configured as described above, the capacitor (2) is connected to the lithium battery body (1) when it is not discharged.
> is charged. This charging capacity is calculated by multiplying the product of the square of the electromotive voltage of 3.67 V of the lithium battery (1) and the capacitance of capacitor (2) of 100 μF by 1/2.6.
7 x 10-' coulombs.
このリチウム電池を放電すると、放電直後には、リチウ
ム電池本体（１〉及びコンデンサ（２）の両方により放
電が行われ、全体として公称電圧が確保される。また、
コンデンサ（２）の放電は、リチウム電池本体〈１）の
電圧遅延が終わるまで続くように設定されており、コン
デンサ（２）の放電が終了した後は、リチウム電池本体
（１）のみで公称電圧をｉ作する。When this lithium battery is discharged, immediately after discharge, both the lithium battery main body (1> and the capacitor (2)) discharge, and the nominal voltage is ensured as a whole.
The discharge of the capacitor (2) is set to continue until the voltage delay of the lithium battery body (1) ends, and after the discharge of the capacitor (2) ends, the nominal voltage is reached only by the lithium battery body (1). i create
ここで、第２図は実施例及び従来のリチウム電池のそれ
ぞれの放電電流６０ａＡのときの放電時間と電池電圧と
の関係を示すグラフ図、第３図は実施例及び従来のリチ
ウム電池のそれぞれの放電電流１０ｍＡのときの放電時
間と電池電圧との関係を示すグラフ図である．
図のように、コンデンサ（２）の放電により、放電直ｊ
＆のリチウム電池本体（１）の電圧遅延が補われ、保存
容量を低下させることなく、放電直後の公称電圧を確保
することができる。Here, FIG. 2 is a graph showing the relationship between discharge time and battery voltage at a discharge current of 60 aA for each of the example and conventional lithium batteries, and FIG. 3 is a graph showing the relationship between the discharge time and battery voltage for each of the example and conventional lithium batteries. It is a graph diagram showing the relationship between discharge time and battery voltage when the discharge current is 10 mA. As shown in the figure, due to the discharge of the capacitor (2), the discharge direction
The voltage delay of the & lithium battery body (1) is compensated for, and the nominal voltage immediately after discharge can be ensured without reducing storage capacity.
なお、上記実施例ではコンデンサ（２）として１００μ
Ｆのものを示したが、放電直後の公称電圧を補償できれ
ば、他の容量のものでもよい。In the above example, the capacitor (2) is 100μ.
Although a capacitor of F is shown, a capacitor of other capacity may be used as long as the nominal voltage immediately after discharge can be compensated.
また、上記実施例ではコンデンサ〈２）をリチウム電池
本体（１）の外周部に螺旋状に巻いたちのを示したが、
コンデンサは、リチウム電池本体に電気的に並列に接続
されていればよく、例えばリチウム電池本体の内部に設
けるなど、他の箇所に設けてもよい。In addition, in the above embodiment, the capacitor (2) was spirally wound around the outer circumference of the lithium battery body (1), but
The capacitor only needs to be electrically connected in parallel to the lithium battery main body, and may be provided at another location, such as inside the lithium battery main body.
さらに、上記実施例ではリチウム電池としてオキシハロ
ゲン化物を正極活物質とした塩化チオニル型のものを用
いたが、他の種類のものであってもよい．
［発明の効果コ
以上説明したように、こい発明のリチウム電池は、リチ
ウム電池本体に電気的に並列に接続されたコンデンサに
よって、放電直後の電圧を補うようにしたので、保存容
量を低下させることなく、放電直後にも公称電圧を確保
することができるという効果を奏する。Further, in the above embodiments, a thionyl chloride type lithium battery with an oxyhalide as the positive electrode active material was used as the lithium battery, but other types may be used. [Effects of the Invention] As explained above, the lithium battery of this invention supplements the voltage immediately after discharge by a capacitor that is electrically connected in parallel to the lithium battery body, so the storage capacity does not decrease. The effect is that the nominal voltage can be maintained even immediately after discharge.
第１図はこの発明の一実施例の正面図、第２図及び第３
図は実施例及び従来のリナウｌ１電池の放電時間と電池
電圧との関１系を示すグラフ図、第４図は従来のリチウ
ム電池の放電時間と電池電圧との関係を示すグラフ図で
ある。
図において、（１）はリチウム電池本体、（２）はコン
デンサである。Figure 1 is a front view of one embodiment of the present invention, Figures 2 and 3 are
The figure is a graph showing the relationship between the discharging time and battery voltage of the example and the conventional RINAU 11 battery, and FIG. 4 is a graph showing the relationship between the discharging time and battery voltage of the conventional lithium battery. In the figure, (1) is the lithium battery body, and (2) is the capacitor.
Claims (1)
に並列に接続されているコンデンサとを備えていること
を特徴とするリチウム電池。A lithium battery characterized by comprising a lithium battery body and a capacitor electrically connected in parallel to the lithium battery body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18895989A JPH0355762A (en) | 1989-07-24 | 1989-07-24 | Lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18895989A JPH0355762A (en) | 1989-07-24 | 1989-07-24 | Lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0355762A true JPH0355762A (en) | 1991-03-11 |
Family
ID=16232926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18895989A Pending JPH0355762A (en) | 1989-07-24 | 1989-07-24 | Lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0355762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008252987A (en) * | 2007-03-29 | 2008-10-16 | Toyota Motor Corp | Power supply system |
| KR101065309B1 (en) * | 2010-03-29 | 2011-09-16 | 삼성에스디아이 주식회사 | Battery pack, and method for controlling the battery pack |
-
1989
- 1989-07-24 JP JP18895989A patent/JPH0355762A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008252987A (en) * | 2007-03-29 | 2008-10-16 | Toyota Motor Corp | Power supply system |
| KR101065309B1 (en) * | 2010-03-29 | 2011-09-16 | 삼성에스디아이 주식회사 | Battery pack, and method for controlling the battery pack |
| US8547060B2 (en) | 2010-03-29 | 2013-10-01 | Samsung Sdi Co., Ltd. | High output battery pack and method of controlling the high output battery pack |
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