JPH0329885Y2 - - Google Patents
Info
- Publication number
- JPH0329885Y2 JPH0329885Y2 JP10348184U JP10348184U JPH0329885Y2 JP H0329885 Y2 JPH0329885 Y2 JP H0329885Y2 JP 10348184 U JP10348184 U JP 10348184U JP 10348184 U JP10348184 U JP 10348184U JP H0329885 Y2 JPH0329885 Y2 JP H0329885Y2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- conductive member
- positive
- battery
- welding
- 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
- 238000003466 welding Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案はリチウム、ナトリウムなどの軽金属を
負極活物質とする非水電池に係り、特にメモリー
バツクアツプ電源などに用いられる接続片付非水
電池に関するものである。[Detailed explanation of the invention] (a) Industrial application field The present invention relates to non-aqueous batteries that use light metals such as lithium and sodium as negative electrode active materials, and in particular non-aqueous batteries with single connections used in memory backup power supplies. It is related to batteries.
(ロ) 従来の技術
リチウム、ナトリウムなどの軽金属を負極活物
質とする非水電池は高エネルギー密度を有すると
いう利点のために銀電池や水銀電池に置換わつて
電卓、電子時計の電源として利用されつつあり、
更に最近に至つては電子回路のメモリー用電源、
特に停電時のメモリーバツクアツプ電源としても
利用されようとしているが、この場合電池は電子
部品と同様にプリント基板に組込む方式がとられ
るため電池の正、負極端子を兼ねる正、負極罐に
夫々接続片を取付る必要がある。(b) Conventional technology Non-aqueous batteries, which use light metals such as lithium and sodium as negative electrode active materials, have the advantage of having high energy density, so they have been used as power sources for calculators and electronic watches, replacing silver batteries and mercury batteries. It's coming,
More recently, power supplies for memory in electronic circuits,
In particular, it is being used as a memory backup power source during power outages, but in this case, the battery is built into a printed circuit board like electronic components, so it is connected to the positive and negative terminals, which also serve as the battery's positive and negative terminals, respectively. You need to install the pieces.
ここで、特に負極を負極罐の内面に直接或いは
熱伝導性の良好な負極集電体を介して圧着せる構
造、例えばボタン型の非水電池においては負極罐
の外面部に接続片の一端をスポツト溶接により溶
着する際に、スポツト溶接時の熱によつて融点の
低い負極（リチウム180℃、ナトリウム98℃）が
溶融し、それに伴つて正、負極間を隔離するセパ
レータも溶融して内部短絡を引起すという懸念が
ある。 Here, in particular, in a structure in which the negative electrode is crimped to the inner surface of the negative electrode case directly or via a negative electrode current collector with good thermal conductivity, for example, in a button-type nonaqueous battery, one end of the connecting piece is attached to the outer surface of the negative electrode case. When welding by spot welding, the negative electrode with a low melting point (lithium 180℃, sodium 98℃) melts due to the heat during spot welding, and the separator that isolates the positive and negative electrodes also melts, causing an internal short circuit. There are concerns that it may cause
斯る問題を解消するために、本出願人は負極罐
と負極との間に熱絶縁性部材を配設したり、一部
空隙を形成するなどの熱緩衝手段を設けて、スポ
ツト溶接時の熱が負極に関与するのを抑制するこ
とを既に提案している。（実開昭57−130958号公
報、実開昭57−136168号公報及び実開昭57−
138265号公報参照）。 In order to solve this problem, the applicant has provided thermal buffering means such as placing a thermally insulating member between the negative electrode can and the negative electrode, or forming a gap in a part of the negative electrode, thereby reducing the problem during spot welding. It has already been proposed to suppress the involvement of heat in the negative electrode. (Utility Model Application No. 57-130958, Utility Model Application No. 57-136168, and Utility Model Application No. 57-136168)
(See Publication No. 138265).
しかしながら、上記熱緩衝手段は負極罐と負極
との一部を電気絶縁するものであるため集電効果
の低下は否めないものであつた。 However, since the thermal buffer means electrically insulates a portion of the negative electrode can and the negative electrode, the current collection effect is undeniably lowered.
(ヘ) 考案が解決しようとする問題点
本考案は接続片取付時におけるスポツト溶接の
熱が負極に関与するのを抑制すると共に電池使用
時においては負極罐と負極とを良好な電気接続状
態とし集電効果の低下を抑制しようとするもので
ある。(f) Problems to be solved by the invention This invention suppresses the heat of spot welding when attaching the connecting piece from being applied to the negative electrode, and also maintains a good electrical connection between the negative electrode can and the negative electrode when the battery is in use. This is intended to suppress the deterioration of the current collection effect.
(ニ) 問題点を解決するための手段
本考案は、接続片と、導電部材とを有する接続
片付非水電池であつて、導電部材は、温度上昇に
伴い電気抵抗の大きくなる材料からなり、接続片
は、一端が負極端子を兼ねる負極缶の外面にスポ
ツト溶接され、導電部材は、該溶接位置において
負極缶の内面に配置されて負極を熱的に隔離して
いることを特徴とするものである。(d) Means for solving the problems The present invention is a non-aqueous battery with a connecting piece that has a connecting piece and a conductive member, where the conductive member is made of a material whose electrical resistance increases as the temperature rises. , the connecting piece is spot-welded to the outer surface of the negative electrode can, one end of which also serves as a negative electrode terminal, and the conductive member is disposed on the inner surface of the negative electrode can at the welding position to thermally isolate the negative electrode. It is something.
(ホ) 作用
本考案電池によれば、負極罐の内面の一部に配
した導電部材が温度上昇に伴い抵抗値が大きくな
るという正温度特性を有するので、導電部材に対
向する負極の外面部に接続片の一端を溶着する
際、溶接時の高熱によつて導電部材は高抵抗体と
なつて溶接時の熱及び溶接電流が負極に関与する
のが抑制され、又常温時は導電部材の抵抗値は低
いため斯る導電部材によつて負極罐と負極との電
気接続が阻害されることはない。(E) Effect According to the battery of the present invention, since the conductive member disposed on a part of the inner surface of the negative electrode case has a positive temperature characteristic in which the resistance value increases as the temperature rises, the outer surface of the negative electrode facing the conductive member When welding one end of the connection piece to the electrode, the conductive member becomes a high-resistance body due to the high heat during welding, and the heat and welding current during welding are suppressed from being involved in the negative electrode. Since the resistance value is low, electrical connection between the negative electrode can and the negative electrode is not inhibited by such a conductive member.
(ヘ) 実施例
以下本考案の一実施例を図面に基づき説明す
る。(F) Embodiment An embodiment of the present invention will be described below based on the drawings.
第１図において１は正極罐であつてその内底面
には正極集電体２を介して、例えば二酸化マンガ
ンを活物質とする正極３が配置されている。４は
負極罐であつてその内底面にはステンレス金網よ
りなる負極集電体５がスポツト溶接により固着さ
れており、この負極集電体５にリチウム圧延板を
所定形状に打抜いた負極６が圧着されている。７
は所定量の非水系電解液を含浸保持せしめたセパ
レータであり、ポリプロピレン不織布よりなる。
８は正、負極罐を絶縁する絶縁パツキングであ
る。 In FIG. 1, reference numeral 1 denotes a positive electrode can, and a positive electrode 3 made of, for example, manganese dioxide as an active material is disposed on the inner bottom surface of the can with a positive electrode current collector 2 interposed therebetween. Reference numeral 4 denotes a negative electrode container, to the inner bottom of which a negative electrode current collector 5 made of a stainless steel wire mesh is fixed by spot welding, and to this negative electrode current collector 5 a negative electrode 6 formed by punching a lithium rolled plate into a predetermined shape is attached. It is crimped. 7
is a separator impregnated and held with a predetermined amount of nonaqueous electrolyte, and is made of polypropylene nonwoven fabric.
8 is an insulating packing that insulates the positive and negative electrode cans.
而して、９は前記負極罐４の内面の一部に配さ
れた正温度特性（温度上昇に伴い抵抗値が大きく
なる特性）を有する導電部材であり、この部材は
ポリオレフイン、フツ素樹脂などにカーボンを約
40重量％混入させたものよりなり、常温時にはカ
ーボン相互間の連繋が充分保持されているため極
めて低い抵抗値を示し、そして高温になるにつれ
合成樹脂材が膨張してカーボン相互間の連繋が切
断され抵抗値が急激に増大するものである。因み
に温度と抵抗値の関係は20℃で約0.03Ω、50℃で
約0.05Ω、75℃で約0.10Ω、そして100℃で約
10.00Ω、更に120℃で約100KΩとなる。 Reference numeral 9 denotes a conductive member having a positive temperature characteristic (a characteristic in which the resistance value increases as the temperature rises) disposed on a part of the inner surface of the negative electrode housing 4, and this member is made of polyolefin, fluororesin, etc. carbon to approx.
It is made of a mixture of 40% by weight, and exhibits an extremely low resistance value because the bonds between the carbons are sufficiently maintained at room temperature, and as the temperature rises, the synthetic resin material expands and the bonds between the carbons are broken. The resistance value increases rapidly. Incidentally, the relationship between temperature and resistance value is approximately 0.03Ω at 20℃, approximately 0.05Ω at 50℃, approximately 0.10Ω at 75℃, and approximately
10.00Ω, and further becomes approximately 100KΩ at 120℃.
１０，１１は夫々前記正、負極罐の外面にスポ
ツト溶接により溶着される第１、第２の接続片で
あつて、例えばニツケル板或いはニツケルメツキ
鉄板よりなり、特に第２の接続片１１はその一端
を前記導電部材９に対向する負極罐の外面部にス
ポツト溶接により溶着１２されている。 Reference numerals 10 and 11 denote first and second connecting pieces that are welded by spot welding to the outer surfaces of the positive and negative electrode housings, respectively, and are made of, for example, a nickel plate or a nickel-plated iron plate. is welded 12 by spot welding to the outer surface of the negative electrode can facing the conductive member 9.
このような構造の本考案電池は第２図に示すよ
うに一対の接続片１０，１１をプリント基板２０
に挿入して後、他の部品と共にハンダ付してプリ
ント基板２０に組込まれる。 As shown in FIG.
After inserting it into the PC board 20, it is soldered together with other parts and assembled into the printed circuit board 20.
(ト) 考案の効果
以上、詳述した如く、本考案は、接続片と、導
電部材とを有する接続片付非水電池であつて、導
電部材は、温度上昇に伴い電気抵抗の大きくなる
材料からなり、接続片は、一端が負極端子を兼ね
る負極缶の外面にスポツト溶接され、導電部材
は、該溶接位置において負極缶の内面に配置され
て負極を熱的に隔離しているものであるから、接
続片を取付る際のスポツト溶接時における熱（負
極罐内面側で約200℃、因みに外面側で約1000℃）
によつて導電部材の抵抗値は増大して高抵抗体と
なり、溶接時の熱及び溶接電流が負極に関与する
のが抑制され負極の溶融を抑えることができるの
で負極の溶融を因とする内部短絡を阻止しうると
共に常温時には導電部材の抵抗値が極めて小なる
ため、通常使用時には導電部材が介在していても
負極罐と負極との電気接続を阻害することがない
ので集電効果を低下させるという不都合はないも
のである。(G) Effects of the invention As detailed above, the present invention is a non-aqueous battery with a connecting piece that has a connecting piece and a conductive member, where the conductive member is made of a material whose electrical resistance increases as the temperature rises. The connecting piece is spot-welded to the outer surface of the negative electrode can, one end of which also serves as a negative electrode terminal, and the conductive member is placed on the inner surface of the negative electrode can at the welding position to thermally isolate the negative electrode. The heat generated during spot welding when attaching the connection piece (approximately 200℃ on the inside of the negative electrode can, and approximately 1000℃ on the outside)
As a result, the resistance value of the conductive member increases and it becomes a high-resistance element, which suppresses heat and welding current during welding from being involved in the negative electrode and prevents melting of the negative electrode. In addition to preventing short circuits, the resistance value of the conductive member is extremely small at room temperature, so even if the conductive member is present during normal use, it does not impede the electrical connection between the negative electrode can and the negative electrode, reducing the current collection effect. There is no inconvenience in doing so.
尚、本考案における温度上昇に伴い抵抗値が大
きくなるという正温度特性を有した導電部材は前
述した如く常温時においては集電体として用いる
ことができるため、第１図における負極集電体の
代用として使用することもできる。 Note that the conductive member of the present invention, which has a positive temperature characteristic in which the resistance value increases as the temperature rises, can be used as a current collector at room temperature as described above, so the negative electrode current collector in FIG. It can also be used as a substitute.
更に本考案電池は実施例で示したような電解液
を用いるものに限定されず固体電解質を用いた非
水電池にも適用しうる。 Furthermore, the battery of the present invention is not limited to those using electrolytes as shown in the examples, but can also be applied to non-aqueous batteries using solid electrolytes.
図面はいづれも本考案に係り、第１図は本考案
電池の断面図、第２図は本考案電池をプリント基
板に取付けた状態を示す図である。
１……正極罐、２……正極集電体、３……正
極、４……負極罐、５……負極集電体、６……負
極、７……セパレータ、８……絶縁パツキング、
９……正温度特性を有する導電部材、１０，１１
……接続片、２０……プリント基板。
The drawings all relate to the present invention; FIG. 1 is a sectional view of the battery of the present invention, and FIG. 2 is a diagram showing the battery of the present invention attached to a printed circuit board. 1...Positive electrode can, 2...Positive electrode current collector, 3...Positive electrode, 4...Negative electrode can, 5...Negative electrode current collector, 6...Negative electrode, 7...Separator, 8...Insulating packing,
9... Conductive member having positive temperature characteristics, 10, 11
... Connection piece, 20 ... Printed circuit board.
Claims (1)
非水電池であつて、 導電部材９は、温度上昇に伴い電気抵抗の大き
くなる材料からなり、 接続片１１は、一端が負極端子を兼ねる負極缶
４の外面にスポツト溶接され、 導電部材９は、該溶接位置において負極缶４の
内面に配置されて負極６を熱的に隔離している 接続片付非水電池。[Claims for Utility Model Registration] A non-aqueous battery with a connection piece that has a connection piece 11 and a conductive member 9, wherein the conductive member 9 is made of a material whose electrical resistance increases as the temperature rises, and the connection piece 11 is spot-welded to the outer surface of the negative electrode can 4, one end of which also serves as a negative electrode terminal, and the conductive member 9 is placed on the inner surface of the negative electrode can 4 at the welding position to thermally isolate the negative electrode 6. water battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10348184U JPS6118568U (en) | 1984-07-09 | 1984-07-09 | Non-aqueous battery with connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10348184U JPS6118568U (en) | 1984-07-09 | 1984-07-09 | Non-aqueous battery with connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6118568U JPS6118568U (en) | 1986-02-03 |
| JPH0329885Y2 true JPH0329885Y2 (en) | 1991-06-25 |
Family
ID=30662873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10348184U Granted JPS6118568U (en) | 1984-07-09 | 1984-07-09 | Non-aqueous battery with connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118568U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04534Y2 (en) * | 1984-10-15 | 1992-01-09 |
-
1984
- 1984-07-09 JP JP10348184U patent/JPS6118568U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6118568U (en) | 1986-02-03 |
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