JP3110312B2 - High temperature secondary battery - Google Patents
High temperature secondary batteryInfo
- Publication number
- JP3110312B2 JP3110312B2 JP08152214A JP15221496A JP3110312B2 JP 3110312 B2 JP3110312 B2 JP 3110312B2 JP 08152214 A JP08152214 A JP 08152214A JP 15221496 A JP15221496 A JP 15221496A JP 3110312 B2 JP3110312 B2 JP 3110312B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- battery
- particles
- sand
- cells
- 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 - Fee Related
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
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、多数の単電池を断
熱容器内に収容した高温電池に関するものであって、特
に、300 〜350 ℃の高温下で作動するナトリウム−硫黄
電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high temperature battery in which a number of cells are housed in a heat insulating container, and more particularly to a sodium-sulfur battery operating at a high temperature of 300 to 350.degree. .
【０００２】[0002]
【従来の技術】従来より高温電池、例えば300 〜350 ℃
の温度で運転されるナトリウム−硫黄電池は、図３に示
すように複数の単電池１を直列あるいは並列に接続して
電池収容用の断熱容器２内に収納し、大容量の電池とし
て提供されている。そして、これら複数の単電池１を収
容した断熱容器２内に耐火性の砂状粒子を充填すること
は、例えば特開平３−２８３２７２号や特開平５−２６
６９２５号に開示されている。2. Description of the Related Art Conventionally, a high-temperature battery, for example, 300 to 350 ° C.
The sodium-sulfur battery operated at a temperature of is provided as a large-capacity battery by connecting a plurality of unit cells 1 in series or in parallel and storing them in a heat-insulating container 2 for storing batteries as shown in FIG. ing. Filling the heat-insulating container 2 containing the plurality of unit cells 1 with refractory sand-like particles is disclosed in, for example, JP-A-3-283272 and JP-A-5-26.
No. 6925.
【０００３】特開平３−２８３２７２号で開示されてい
る発明では、耐火性の砂状粒子を充填する目的は、万一
電池作動中に一部の単電池が異常過熱を起こした場合で
もその熱を拡散させて直接隣接単電池に影響を及ぼすこ
とをなくすること、及び、電池の作動、停止の際にも各
単電池を均等に昇降温することである。この耐火性の砂
状粒子としては、単電池構成要素と反応せず、かつ電気
絶縁性の粒状充填材が用いられている。一方、特開平５
−２６６９２５号に開示されている発明では、断熱容器
の下部には各単電池の固定保持を目的として熱硬化性の
バインダーを混合した細粒の粒状固定材を充填し、上部
には防火を目的とした粗粒の粒状防火材が充填されてい
る。In the invention disclosed in Japanese Patent Application Laid-Open No. 3-283272, the purpose of filling the refractory sand-like particles is to reduce the heat even if some of the cells become abnormally heated during the operation of the battery. To prevent direct influence on the adjacent unit cells, and to raise and lower the temperature of each unit cell even when the cells are operated or stopped. As the refractory sand-like particles, a particulate filler which does not react with the constituent elements of the cell and has electrical insulation properties is used. On the other hand, JP-A-5
In the invention disclosed in JP-A-266925, the lower part of the heat insulating container is filled with a fine granular fixing material mixed with a thermosetting binder for the purpose of fixing and holding each cell, and the upper part is used for fire protection. Is filled with a coarse-grained granular fireproof material.
【０００４】しかしながら、図１のように各単電池１を
頂部において互いに電気的に接続し、その電気配線中に
ヒューズ３を組み込んだ場合においては、単電池１に故
障が発生して過電流が流れ、ヒューズ３が溶断した際に
は、ヒューズ３を覆って接している砂状粒子５も一部溶
けてガラス状になり、溶けたガラス体が導電性を有する
ためにヒューズ３が溶断しているにもかかわらず故障単
電池と正常単電池間に電流が流れ、電流が遮断出来ない
との問題があることを本願発明者は見出した。そして電
流が遮断出来ないと故障部に電流が流れ続け、ジュール
熱でその部分が更に高温になり、故障事故が拡大する。However, when the cells 1 are electrically connected to each other at the top as shown in FIG. 1 and the fuse 3 is incorporated in the electric wiring, a failure occurs in the cells 1 and an overcurrent occurs. When the fuse 3 is blown, the sand-like particles 5 covering and in contact with the fuse 3 are partially melted into a glassy state. The present inventor has found that there is a problem that a current flows between a failed unit cell and a normal unit cell and the current cannot be interrupted despite the presence of the battery. If the current cannot be interrupted, the current continues to flow to the failed portion, and the portion becomes further hot due to Joule heat, thereby increasing the number of failure accidents.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記の問題
点を解決するためになされたものであって、複数の単電
池を収容し、各単電池の頂部において互いに電気的に接
続し、その電気配線中にヒューズを組み込んで、各単電
池の頂部の電気配線を覆う程度に充填された粒状充填材
から構成された高温電池において、単電池に故障が発生
して過電流が流れ、ヒューズが溶断した際に、故障電池
と正常電池とを電気的に速やかに遮断できる高温電池を
提供しようとするものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and includes a plurality of cells, which are electrically connected to each other at the top of each cell. In a high-temperature battery composed of a granular filler filled to the extent that it covers the electric wiring on the top of each cell by incorporating a fuse in the electric wiring, a failure occurs in the cell, overcurrent flows, and the fuse It is an object of the present invention to provide a high-temperature battery that can quickly and electrically disconnect a failed battery and a normal battery when the battery is blown.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
めになされた請求項１の発明の高温電池は、断熱容器内
に複数の単電池を頂部において互いに電気的に接続した
状態で収容した高温電池において、各単電池の頂部の電
気配線中に組み込まれたヒューズを遮断時間が２秒以下
の、電気絶縁性でかつ耐熱性を有する、トリジマイトと
クリストバライトを合計総量で10％以上含有している高
温型石英である砂状粒子で覆ったことを特徴とするもの
である。また請求項２の発明の高温電池は、断熱容器内
に複数の単電池を頂部において互いに電気的に接続した
状態で収容した高温電池において、各単電池の頂部の電
気配線中に組み込まれたヒューズを、SiO2≧97 Wt ％、
Al2O3 ≦1 Wt％、Fe2O3 ≦0.5 Wt％、CaO ＋MgO ≦0.5
Wt％、K2O ＋Na2O≦0.5 Wt％の組成を有し、粒径が0.4
〜1.0 mmである電気絶縁性でかつ耐熱性を有する、トリ
ジマイトとクリストバライトを合計総量で10％以上含有
している高温型石英である砂状粒子で覆ったことを特徴
とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a high-temperature battery according to the first aspect of the present invention has a plurality of single cells housed in a heat insulating container in a state of being electrically connected to each other at the top. In a high-temperature battery, a fuse incorporated in the electric wiring at the top of each cell is cut off for 2 seconds or less, and is electrically insulating and heat-resistant , with tridymite.
High content of cristobalite at 10% or more in total
It is characterized by being covered with sand-like particles of warm quartz . The high-temperature battery according to the second aspect of the present invention is a high-temperature battery in which a plurality of cells are housed in an insulated container in a state where they are electrically connected to each other at the top. With SiO 2 ≧ 97 Wt%,
Al 2 O 3 ≦ 1 Wt%, Fe 2 O 3 ≦ 0.5 Wt%, CaO + MgO ≦ 0.5
Wt%, K 2 O + Na 2 O ≦ 0.5 Wt% composition, particle size 0.4
And electrically insulating is to 1.0 mm has a heat resistance, tri
Contains 10% or more of dimite and cristobalite in total
It is characterized by being covered with sand-like particles that are high-temperature quartz .
【０００７】また、請求項３の発明の高温電池は、断熱
容器内に収容されている複数の単電池の側壁部間隙に
も、SiO2≧97 Wt ％、Al2O3 ≦1 Wt％、Fe2O3 ≦0.5 Wt
％、CaO ＋MgO ≦0.5 Wt％、K2O ＋Na2O≦0.5 Wt％の組
成を有し、粒径が0.4 〜1.0 mmである電気絶縁性でかつ
耐熱性を有する、トリジマイトとクリストバライトを合
計総量で10％以上含有している高温型石英である砂状粒
子を充填したことを特徴とするものである。In the high temperature battery according to the third aspect of the present invention, SiO 2 ≧ 97 Wt%, Al 2 O 3 ≦ 1 Wt%, and the gap between the side walls of the plurality of single cells housed in the heat insulating container. Fe 2 O 3 ≦ 0.5 Wt
If%, CaO + MgO ≦ 0.5 Wt %, K 2 O + Na 2 having O ≦ 0.5 Wt% of the composition, particle size having an electrically insulating and heat resistance is 0.4 to 1.0 mm, tridymite and cristobalite
It is characterized by being filled with sand-like particles that are high-temperature quartz containing 10% or more in total amount .
【０００８】[0008]
【発明の実施の形態】図１において、１はナトリウム−
硫黄電池の単電池、２は多数の単電池１を収容した断熱
容器である。各単電池１、１はその頂部に電極４を備え
ており、これらの電極４、４を相互に電気的に接続した
電気配線中にヒューズ３が組み込まれている。５は単電
池１の側壁部間隙、及び各単電池１の頂部のヒューズ３
を覆うように断熱容器２内に充填された電気絶縁性でか
つ耐熱性の砂状粒子である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG.
The unit cells 2 of the sulfur battery are heat insulating containers accommodating many unit cells 1. Each of the cells 1 and 1 has an electrode 4 on the top, and a fuse 3 is incorporated in an electric wiring that electrically connects the electrodes 4 and 4 to each other. 5 is a gap between the side walls of the unit cells 1 and a fuse 3 at the top of each unit cell 1.
Are electrically insulating and heat-resistant sand-like particles filled in the heat insulating container 2 so as to cover the surface.
【０００９】本発明ではこの砂状粒子５として、遮断時
間が２秒以下の特性を有する砂状粒子を用いる。この遮
断時間の測定は、図２に示されるように試験用電極６、
６間にヒューズ３を接続し、このヒューズ３の上端部を
20mm以上の厚さで覆うように供試体となる各種の砂状粒
子を充填したうえ、試験用電極６、６間に165 Ａ、開放
端電圧200 Ｖの過電流を流してヒューズ３を溶断させ、
回路を遮断させる。そしてヒューズ３の溶断後に電流が
完全に遮断されるまでの時間を測定する方法によった。In the present invention, as the sand-like particles 5, sand-like particles having a cut-off time of 2 seconds or less are used. As shown in FIG.
Fuse 3 is connected between 6 and the upper end of this fuse 3
After filling various sand-like particles to be a test piece so as to cover with a thickness of 20 mm or more, an overcurrent of 165 A and an open-end voltage of 200 V was applied between the test electrodes 6 to blow the fuse 3. ,
Break the circuit. Then, a method of measuring the time until the current is completely cut off after the fuse 3 is blown is used.
【００１０】本発明者は種々の供試体について、上記試
験方法で研究をかさねた結果、大部分の供試体（砂状粒
子）は回路を完全に遮断出来ずに電流が流れ続けていた
が、供試体によっては極めて短時間で遮断できるものが
あることを見出した。更に本発明者は、ヒューズ溶断後
２秒以下で完全に電流を遮断できる材料が高温電池の充
填材として適していることを見いだし、その様な材料を
鋭意研究した結果、請求項２の材料を発明した。なお、
大部分の供試体がヒューズ溶断後も電流を完全に遮断出
来ずに電流が流れ続けるのは、ヒューズ３が溶断する際
に電極間にアークが発生し、このアークによってヒュー
ズ３に接触する供試体も溶融し、ガラス化して導電性に
なり、その結果、回路遮断後も電流が流れるものと推察
される。The present inventor has conducted various studies on various test specimens using the above-described test method. As a result, most of the test specimens (sand-like particles) could not completely shut off the circuit, and the current continued to flow. It has been found that some test pieces can be cut off in a very short time. Furthermore, the present inventor has found that a material capable of completely interrupting the current in less than 2 seconds after blowing the fuse is suitable as a filler for a high-temperature battery. Invented. In addition,
Most of the specimens cannot completely cut off the current even after the fuse is blown, and the current continues to flow because an arc is generated between the electrodes when the fuse 3 is blown, and the arc makes contact with the fuse 3. It is also presumed that the metal also melts and vitrifies and becomes conductive, and as a result, current flows even after the circuit is cut off.
【００１１】このようにして得られた遮断時間が２秒以
下の砂状粒子としては、SiO2≧97 Wt ％、Al2O3 ≦1 Wt
％、Fe2O3 ≦0.5 Wt％、CaO ＋MgO ≦0.5 Wt％、K2O ＋
Na2O≦0.5 Wt％の組成を有し、粒径が0.4 〜1.0 mmのも
ので、トリジマイトとクリストバライトを合計総量で10
％以上含有している高温型石英が相当する。ここでSiO2
を97 Wt ％以上としたのは、融点を高めてガラス化を防
止するためであり、Fe2O3 を0.5 Wt％以下としたのは、
導電性を低下させるためである。またAl2O3 、CaO ＋Mg
O 、K2O ＋Na2Oの各成分の数値限定も、融点を高めてガ
ラス化を防止するためである。粒径は0.4 mm未満である
と溶融し易く、1.0 mmを越えると均一な充填が行いにく
くなるので、0.4 〜1.0 mmとした。The sand-like particles having a cutoff time of 2 seconds or less obtained as described above include SiO 2 ≧ 97 Wt% and Al 2 O 3 ≦ 1 Wt.
%, Fe 2 O 3 ≦ 0.5 Wt%, CaO + MgO ≦ 0.5 Wt%, K 2 O +
It has a composition of Na 2 O ≦ 0.5 Wt%, a particle size of 0.4 to 1.0 mm, and contains tridymite and cristobalite in a total amount of 10 %.
High quartz that% containing more than you equivalent. Where SiO 2
Is set to 97 Wt% or more in order to increase the melting point to prevent vitrification. The reason why Fe 2 O 3 is set to 0.5 Wt% or less is that
This is for reducing the conductivity. Al 2 O 3 , CaO + Mg
The numerical limitation of each component of O, K 2 O and Na 2 O is also to increase the melting point and prevent vitrification. If the particle size is less than 0.4 mm, it is easy to melt, and if it exceeds 1.0 mm, it is difficult to perform uniform filling.
【００１２】上記の組成の砂状粒子の具体例を表１に、
比較例の供試体を表２に示す。なお、Ｎｏ２、Ｎｏ３お
よびＮｏ４は高温型石英であって、結晶として、トリジ
マイトとクリストバライトを合計総量でＮｏ２は10％、
Ｎｏ３は15％、Ｎｏ４は12％含有したものである。この
ようなトリジマイトとクリストバライトを合計総量で10
％以上含有している高温型石英を砂状粒子として使用す
れば、表１の遮断時間のデータからも明らかなように、
消弧性を更に向上させることができる。Table 1 shows specific examples of the sandy particles having the above composition.
Table 2 shows the specimens of the comparative examples. In addition, No2, No3 and No4 are high-temperature type quartz, and as a crystal, tridymite and cristobalite have a total total amount of 10%,
No. 3 contained 15% and No. 4 contained 12%. A total of 10 such tridymite and cristobalite
% Of the high-temperature quartz containing sand as particles, as is clear from the cut-off time data in Table 1,
Arc extinguishing properties can be further improved.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【表２】 [Table 2]
【００１５】上記のような化学組成、結晶組成と粒径を
有し、遮断時間が２秒以下の電気絶縁性でかつ耐熱性の
砂状粒子５によってヒューズ３を覆うことにより、従来
のように砂状粒子が溶けることによって生じた導電性の
ガラス体が電流の遮断を妨げるようなトラブルをなく
し、速やかに電流を遮断して故障単電池と正常単電池と
を切り離すことができる。このため、故障部に電流が流
れ続けることによる故障事故の拡大を防止することがで
きる。By covering the fuse 3 with the electrically insulating and heat-resistant sand-like particles 5 having the above-mentioned chemical composition , crystal composition and particle size, and having a cut-off time of 2 seconds or less, as in the prior art, The trouble that the conductive glass body generated by the melting of the sand-like particles hinders the interruption of the current can be eliminated, and the current can be quickly interrupted to separate the failed unit cell from the normal unit cell. For this reason, it is possible to prevent the occurrence of a failure accident due to the continuous flow of current in the failure portion.
【００１６】図１の実施形態では、上記の砂状粒子５を
単電池１の側壁部間隙、及び各単電池１の頂部のヒュー
ズ３を覆うように断熱容器２の内部に充填したが、この
ような特性が要求されるのは主としてヒューズ３の部分
であるから、少なくとも各単電池１の頂部のヒューズ３
の部分にこのような砂状粒子５を充填すればよい。しか
し、このような砂状粒子５は消弧性や防火性に優れてい
るのみならず、固定材としての機能を有している。従っ
て図１のように単電池１の側壁部間隙にもこの砂状粒子
５を充填すれば、電池を工場で組立てて使用地に運搬す
る際に、輸送時の振動による単電池１のずれが防止でき
る。また、電池組立時において砂状粒子５の充填作業が
簡単になる。更に、粒状充填材の管理も一種類ですむの
で、管理費（品質チェック、受入れ検査、保管容器等に
要する費用）が安価になる利点がある。In the embodiment shown in FIG. 1, the sand-like particles 5 are filled in the heat insulating container 2 so as to cover the gap between the side walls of the unit cells 1 and the fuse 3 at the top of each unit cell 1. Since such characteristics are mainly required in the fuse 3 portion, at least the fuse 3 on the top of each unit cell 1 is required.
May be filled with such sandy particles 5. However, such sandy particles 5 not only have excellent arc-extinguishing properties and fire protection properties, but also have a function as a fixing material. Therefore, if the gaps between the side walls of the unit cells 1 are also filled with the sand-like particles 5 as shown in FIG. 1, when the cells are assembled in a factory and transported to the site of use, the displacement of the unit cells 1 due to vibration during transportation is reduced. Can be prevented. Also, the work of filling the sand-like particles 5 at the time of assembling the battery is simplified. Further, since only one kind of management of the granular filler is required, there is an advantage that management costs (costs required for quality check, acceptance inspection, storage container, etc.) are reduced.
【００１７】[0017]
【実施例】480 本のナトリウム−硫黄電池の単電池１を
断熱容器２内に収容し、各単電池１、１間にヒューズ３
をいれて電気的に接続した。その後、表１のＮｏ３の砂
状粒子を断熱容器２内に充填して、高温電池を組み立て
た。ここで、予め故障するように設定しておいた所定の
単電池（クラックを有した固体電解質管で組み立てた単
電池）を組み入れて置く。この断熱容器２内に設置した
図示しないヒータを用いて単電池１を昇温し、300 〜35
0 ℃で運転して所定の単電池を故障させた。所定の期間
運転を続け、その後、運転を中止して断熱容器内を点検
した。その結果、所定のヒューズには過電流が流れ溶断
していたが、粒状充填材の消弧作用により、正常な単電
池には何等影響がないことが確認できた。しかし、同じ
条件で砂状粒子を表２の比較供試体Ｎｏ１に置き換えて
試験したところ、故障電池の故障部の拡大化が認められ
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS 480 sodium-sulfur cells 1 are accommodated in a heat insulating container 2 and a fuse 3 is inserted between the cells 1 and 1.
And electrically connected. Thereafter, No. 3 sand-like particles in Table 1 were filled in the heat insulating container 2 to assemble a high-temperature battery. Here, a predetermined unit cell (a unit cell assembled with a solid electrolyte tube having a crack) that has been set in advance to break down is incorporated. The temperature of the unit cell 1 is raised by using a heater (not shown) installed in the heat insulating container 2, and 300 to 35
Operating at 0 ° C., a given cell failed. The operation was continued for a predetermined period, after which the operation was stopped and the inside of the heat insulating container was inspected. As a result, it was confirmed that the overcurrent flowed through the predetermined fuse and the fuse was blown, but the arc extinguishing action of the particulate filler had no effect on a normal cell. However, when the sand-like particles were replaced with the comparative sample No. 1 in Table 2 under the same conditions and tested, it was found that the failure portion of the failed battery was enlarged.
【００１８】[0018]
【発明の効果】以上に説明したように、請求項１及び請
求項２の発明によれば、過電流により単電池間のヒュー
ズが溶断したときに電流を速やかに遮断することがで
き、事故の拡大を防止することができる。また請求項３
の発明によれば、電池を工場で組立てて使用地に運搬す
るまでの輸送時の振動による単電池のずれが防止できる
とともに、電池組立時における粒状充填材の充填作業が
簡単になる。更に請求項４の発明によれば、消弧性を更
に向上させることができる利点がある。As described above, according to the first and second aspects of the present invention, when the fuse between the cells is blown due to the overcurrent, the current can be quickly cut off, and the accident can be prevented. Expansion can be prevented. Claim 3
According to the invention described above, it is possible to prevent the cells from being displaced due to vibration during transportation until the batteries are assembled at the factory and transported to the place of use, and the work of filling the particulate filler during battery assembly is simplified. Further, according to the invention of claim 4, there is an advantage that the arc extinguishing property can be further improved.
【図１】本発明の高温電池を示す断面図である。FIG. 1 is a sectional view showing a high-temperature battery of the present invention.
【図２】実施例における遮断時間の測定法を示す断面図
である。FIG. 2 is a cross-sectional view illustrating a method for measuring a cutoff time in an example.
【図３】従来の高温電池を示す断面図である。FIG. 3 is a sectional view showing a conventional high-temperature battery.
１ 単電池、２ 断熱容器、３ ヒューズ、４ 電極、
５ 砂状粒子、６ 試験用電極1 cell, 2 insulated containers, 3 fuses, 4 electrodes,
5 Sandy particles, 6 Test electrode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 日高 道孝 愛知県名古屋市瑞穂区須田町２番56号 日本碍子株式会社内 (56)参考文献 特開 平６−283217（ＪＰ，Ａ) 特開 平５−266925（ＪＰ，Ａ) 特開 平５−251110（ＪＰ，Ａ) 特開 平７−272751（ＪＰ，Ａ) 特開 平４−282573（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 10/39 H01M 2/34 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michitaka Hidaka 2-56 Suda-cho, Mizuho-ku, Nagoya-shi, Aichi Japan Insulator Co., Ltd. (56) References JP-A-6-283217 (JP, A) JP JP-A-5-266925 (JP, A) JP-A-5-251110 (JP, A) JP-A-7-272751 (JP, A) JP-A-4-282573 (JP, A) (58) Fields investigated (Int) .Cl. 7 , DB name) H01M 10/39 H01M 2/34
Claims (4)
て互いに電気的に接続した状態で収容した高温電池にお
いて、各単電池の頂部の電気配線中に組み込まれたヒュ
ーズを遮断時間が２秒以下の、電気絶縁性でかつ耐熱性
を有する、トリジマイトとクリストバライトを合計総量
で10％以上含有している高温型石英である砂状粒子で覆
ったことを特徴とする高温電池。1. A high-temperature battery in which a plurality of cells are housed in a heat-insulating container in a state where they are electrically connected to each other at the top, and a fuse incorporated in electric wiring at the top of each cell is cut off for 2 seconds. The following electrical insulation and heat resistance
The total amount of tridymite and cristobalite
A high-temperature battery covered with sand-like particles, which are high-temperature quartz containing 10% or more of the above .
て互いに電気的に接続した状態で収容した高温電池にお
いて、各単電池の頂部の電気配線中に組み込まれたヒュ
ーズを、SiO2≧97 Wt ％、Al2O3 ≦1 Wt％、Fe2O3 ≦0.
5 Wt％、CaO＋MgO ≦0.5 Wt％、K2O ＋Na2O≦0.5 Wt％
の組成を有し、粒径が0.4 〜1.0 mmである電気絶縁性で
かつ耐熱性を有する、トリジマイトとクリストバライト
を合計総量で10％以上含有している高温型石英である砂
状粒子で覆ったことを特徴とする高温電池。2. A high-temperature battery in which a plurality of cells are housed in an insulated container in a state where they are electrically connected to each other at the top, wherein a fuse incorporated in the electric wiring at the top of each cell is made of SiO 2 ≧ 97. Wt%, Al 2 O 3 ≦ 1 Wt%, Fe 2 O 3 ≦ 0.
5 Wt%, CaO + MgO ≦ 0.5 Wt%, K 2 O + Na 2 O ≦ 0.5 Wt%
Tridymite and cristobalite, which have a composition of 0.4 to 1.0 mm and have electrical insulation and heat resistance
High-temperature battery characterized by being covered with sand-like particles that are high-temperature quartz containing 10% or more in total .
池の側壁部間隙にも、SiO2≧97 Wt ％、Al2O3 ≦1 Wt
％、Fe2O3 ≦0.5 Wt％、CaO ＋MgO ≦0.5 Wt％、K2O ＋
Na2O≦0.5 Wt％の組成を有し、粒径が0.4 〜1.0 mmであ
る電気絶縁性でかつ耐熱性を有する、トリジマイトとク
リストバライトを合計総量で10％以上含有している高温
型石英である砂状粒子を充填したことを特徴とする請求
項２記載の高温電池。3. The gap between the side walls of a plurality of unit cells housed in the heat insulating container also has SiO 2 ≧ 97 Wt% and Al 2 O 3 ≦ 1 Wt.
%, Fe 2 O 3 ≦ 0.5 Wt%, CaO + MgO ≦ 0.5 Wt%, K 2 O +
It has a composition of Na 2 O ≤ 0.5 Wt%, a particle size of 0.4 to 1.0 mm, and is electrically insulating and heat resistant .
High temperature containing 10% or more of total wrist barite
3. The high-temperature battery according to claim 2, wherein the high-temperature battery is filled with sand-like particles that are shaped quartz .
ことを特徴とする請求項１〜３のいずれかに記載の高温The high temperature according to any one of claims 1 to 3, wherein
電池。battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08152214A JP3110312B2 (en) | 1996-06-13 | 1996-06-13 | High temperature secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08152214A JP3110312B2 (en) | 1996-06-13 | 1996-06-13 | High temperature secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH103901A JPH103901A (en) | 1998-01-06 |
| JP3110312B2 true JP3110312B2 (en) | 2000-11-20 |
Family
ID=15535574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08152214A Expired - Fee Related JP3110312B2 (en) | 1996-06-13 | 1996-06-13 | High temperature secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3110312B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101252869B1 (en) | 2007-05-31 | 2013-04-09 | 주식회사 엘지화학 | Battery pack ensuring a good safety |
| JP6087544B2 (en) * | 2012-09-04 | 2017-03-01 | 株式会社東芝 | Assembled battery |
| KR101666257B1 (en) | 2013-01-16 | 2016-10-13 | 삼성에스디아이 주식회사 | Rechargeable battery for supressing arc occurance |
| CN104995762A (en) * | 2013-02-14 | 2015-10-21 | 三洋电机株式会社 | Battery block |
| DE102013208135B4 (en) | 2013-05-03 | 2023-11-09 | Robert Bosch Gmbh | Battery with overcharge protection |
-
1996
- 1996-06-13 JP JP08152214A patent/JP3110312B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH103901A (en) | 1998-01-06 |
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