JP2002298831A - Battery having pressure-sensitive circuit breaking mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery of a thin type requiring slight force for breaking a condition path and assuring breakage of the conduction path. SOLUTION: This battery, having a pressure-sensitive circuit breaking mechanism comprises a breaking mechanism member 5, having a holding member 6 arranged on the side of a smaller-area end face 2c of an exterior body 2 so that it can be reduced in overall thickness and made thin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to Li (lithium).
The present invention relates to a battery having a pressure-sensitive current interrupting mechanism suitable for use in a polymer secondary battery.

[0002]

2. Description of the Related Art A Li polymer secondary battery used in recent years has a plate-like shape, is provided with an exterior body made of a film laminate, and has a battery body having a thickness of only 1 to 4 mm. (Wide surface) with a blocking mechanism incorporated. When charging the battery, if the battery is further charged even after the completion of the charging, or if the charging is performed with a current larger than the specified current, a chemical change occurs in the battery, gas is generated, and the battery is generated. As the internal pressure increases, the external body is displaced by the internal pressure, and the conductive path is interrupted by the interrupting mechanism, thereby preventing cracking and rupture of the external body.

[0003]

A conventional battery provided with a shut-off mechanism has a problem that the whole is thick and cannot be made thin because the shut-off mechanism is mounted on the wide surface side of the battery. Another problem is that a large force is required to cut off the conductive path.

Accordingly, an object of the present invention is to provide a battery which is thin, has a small force for interrupting a conductive path, and has a pressure-sensitive current interrupting mechanism for reliably interrupting the conductive path.

[0005]

Means for Solving the Problems As a first means for solving the above-mentioned problems, a power generator is built-in, and an exterior body deformable by internal pressure, and an electric path from the power generator to the outside of the exterior body are provided. A battery having a plurality of extraction terminals,
A shut-off mechanism member combined with the battery, wherein the shut-off mechanism member is disposed outside the exterior body, and at least one end thereof is disposed on an upper surface or a lower surface having a large area of the exterior body, and the internal pressure rises. An actuating member displaced in the outward direction in accordance with the above, an insulating holding member disposed on an end face side having a small area of the exterior body, and held by the holding member, one end of which is electrically connected to at least one of the extraction terminals. And one end of the operating member is displaced by the internal pressure of the battery, the other end of the operating member serving as a fulcrum, and the one end and the other end of the operating member The middle part located between the sides is displaced,
When the intermediate portion is displaced by a predetermined amount or more, the element is broken by the intermediate portion to cut off the conductive path.

As a second solution, the other end of the operating member is supported by the holding member. As a third solution, a bent portion is provided at the other end of the operating member, and the bent portion is hooked to the holding member. As a fourth solution, a retaining portion formed of a concave portion is provided on one surface of the holding member, and the bent portion is retained on the retaining portion.

As a fifth solution, the operating member has a cut-and-raised spring portion, and this spring portion is on the side opposite to the one surface side of the element on which the conductive path is formed. And when the element breaks, the spring portion keeps the element in a broken state to prevent re-conduction of the conductive path. Further, as a sixth solution, the operating member is provided with a convex portion facing the other surface side of the element, and when the intermediate portion of the operating member is displaced, the convex portion presses the element. To break it.

Further, as a seventh solution, the holding member is provided with a mounting member extending so as to face the one end of the operating member, and the mounting member and the operating member are used to mount the battery. It was configured to be pinched. Also,
As an eighth solution, the mounting member is formed separately from the holding member, and the mounting member is combined with the holding member, and the two are integrated. Further, as a ninth solution means, a groove is provided in the holding member, and the mounting member is fitted into the groove, and the two are combined.

[0009] As a tenth solution, the mounting member includes a flat plate portion facing the operating member, a bent portion bent at a substantially right angle from one end of the flat plate portion,
A mounting portion extending from one end of the bent portion so as to face the flat portion, the mounting portion is fitted into the groove portion, and a part of the operating member is placed on the mounting portion. In addition, the battery is sandwiched between the flat plate portion and the operating member.

As an eleventh means for solving the problem, the operating member comprises a flat clamping portion facing the flat portion, and a connecting portion bent from one end of the clamping portion toward the flat portion. And a flat portion bent from one end of the connecting portion in parallel with the mounting portion. The flat portion is placed on the mounting portion, and the flat portion is placed between the holding portion and the flat portion. Thus, the battery was sandwiched. As a twelfth solving means, the flat part of the operating member is provided with the convex part and the spring part.

As a thirteenth solution means, both ends of the element can be supported by the holding member, and when the intermediate portion of the operating member is displaced, both ends of the element are connected to the support member. In a state where the element is in contact with and supported by the element, a central portion located between both ends of the element is pressed by the intermediate portion of the operating member.

As a fourteenth solution, the holding member has a support portion for supporting both ends of the element, and the holding member has at least one between the take-out terminal and the conductive path. Attach a plurality of terminal portions, the element is connected to the conductive path provided on one surface side supported by the support portion, the plurality of terminal portions are electrically connected, and the operating member of the The intermediate portion is located on the other surface of the element opposite to the conductive path.

As a fifteenth solution, the terminal portion is formed of a metal plate, and has a wide portion held by the holding member, and a narrower width than the wide portion, and the terminal portion extends outward from the holding member. And a narrow portion that extends, and the narrow portion is connected to the conductive path. As a sixteenth solution, a break inducing portion for facilitating breakage of the element is provided at the central portion of the element. As a seventeenth solution, the breakage inducing portion is configured by providing a cutout in a width direction on a part of the element.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings of a battery having a pressure-sensitive current interrupting mechanism according to the present invention, FIG. 1 is a plan view showing a battery having a pressure-sensitive current interrupting mechanism according to the present invention, and FIG. -2
3 is a rear view of the battery having the pressure-sensitive current interrupting mechanism of the present invention, and FIG. 4 is a cross-sectional view taken along line 4-4 in FIG.

FIG. 5 is a plan view of a holding member of the battery having the pressure-sensitive current interrupting mechanism of the present invention. FIG. 6 is a front view of the holding member of the battery having the pressure-sensitive current interrupting mechanism of the present invention.
7 is a bottom view of a holding member of the battery having the pressure-sensitive current interrupting mechanism of the present invention, FIG. 8 is a plan view of an element of the battery having the pressure-sensitive current interrupting mechanism of the present invention, and FIG. It is a front view of the element which concerns on the battery which has a pressure-current interruption mechanism.

FIG. 10 is a plan view of an operating member of a battery having a pressure-sensitive current interrupting mechanism according to the present invention. FIG. 11 is a front view of an operating member of a battery having a pressure-sensitive current interrupting mechanism of the present invention. 12 is a rear view of an operating member of the battery having the pressure-sensitive current interrupting mechanism of the present invention, FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 10, and FIG. FIG. 15 is a plan view of the mounting member, and FIG. 15 is a side view of the mounting member of the battery having the pressure-sensitive current interrupting mechanism of the present invention.

Next, the structure of the battery having the pressure-sensitive current interrupting mechanism of the present invention will be described with reference to FIGS.
The battery 1 composed of a polymer secondary battery or the like has a plate shape and incorporates a plate-shaped power generation element (not shown) composed of a power generation element.
An exterior body 2 made of a deformable synthetic resin, and a plurality of extraction terminals 3 and 4 serving as electric paths from the power generator to the outside of the exterior body 2
It is composed of

The exterior body 2 has upper and lower surfaces 2a and 2b having a large area, and four end surfaces 2c having a smaller area than the upper and lower surfaces 2a and 2b.
c has a sheet-like sealing portion 2d extending outward from the sealing portion 2d. The sealing portion 2d has a configuration in which the takeout terminals 3 and 4 are drawn out, and when the internal pressure of the battery increases,
The upper and lower surfaces 2a and 2b having a large area of the exterior body 2 are displaced outward.

Next, the shut-off mechanism member 5 will be described. The holding member 6 which constitutes a part of the shut-off mechanism member 5 is made of an insulating synthetic resin molded product as shown in FIGS. A substantially rectangular plate-like base 6a, a notch 6b provided on the front side of the base 6a, a latching portion 6c formed of a concave portion provided on the back side of the base 6a, and a lower surface of the base 6a. A pair of support portions 6d formed by step portions are located at both ends of the notch portion 6b, and a pair of groove portions 6e provided in the width direction near both ends on the lower surface side of the base portion 6a.
And an inclined portion 6f on the lower surface side of the base portion 6a such that the thickness of the base portion 6a gradually decreases from the back side to the front side.
(See FIG. 2).

The plurality of terminal portions 7 and 8 made of a thin conductive metal plate have wide strip portions 7a and 8a and wide strip portions 7a and 8a.
a, the terminal portions 7 and 8 have wide portions 7a and 8a and narrow portions 7a and 8b, respectively.
A part of b, 8b is embedded and attached to the base 6a of the holding member 6. When the terminal portions 7 and 8 are attached, the wide portions 7a and 8a are led out in the longitudinal direction of the base 6a, and the ends of the narrow portions 7b and 8b are located in the cutout portions 6b. It is in a state. The narrow portions 7b and 8b located in the notch 6b are arranged flush with the upper wall surface of the support 6d provided on the holding member 6.

As shown in FIGS. 8 and 9, the substantially rectangular element 9 has an insulating substrate 10 made of a brittle ceramic substrate or the like, and a silver provided on one surface of the insulating substrate 10. And a conductive path 11 made of a conductive material such as Further, the element 9 includes an insulating substrate 10
In a central portion 10b located between both end portions 10a, there is provided a break inducing portion 10d formed by providing a cutout portion 10c in the width direction on a part of the insulating substrate 10.

The element 9 is connected to the conductive path 11
With both sides facing upward, both end portions 10a from the lower surface side of the holding member 6
The conductive path 11 is electrically connected to the narrow portions 7b and 8b of the terminal portions 7 and 8 by soldering or the like in a state where the element 9 is in contact with the support portion 6d and the element 9 is connected to the terminal portion 7d. , 8. When the element 9 is attached, both ends 10a are supported by the support portions 6d and are bridged, and the central portion 10b is located at the notch portion 6b.

As shown in FIGS. 14 and 15, a mounting member 12 made of a metal plate or the like has a rectangular flat plate portion 12a,
A bent portion 12b bent at a substantially right angle from one end of the flat plate portion 12a, a mounting portion 12c bent at a substantially right angle from one end of the bent portion 12b and extending to face the flat plate portion 12a; And a plurality of reinforcing ribs 12d provided from the portion 12a to the mounting portion 12c through the bent portion 12b.

The mounting member 12 is attached to the holding member 6.
And the mounting portion 12c is fitted into the pair of grooves 6e in the front direction from the back side of the holding member 6, and the holding member 6
Is combined with Further, the bent portion 12b abuts on the back surface of the holding member 6, so that the groove 6
The fitting of the mounting member 12 is stopped and the mounting member 12 is positioned. At this time, the mounting portion 12c is in a state of being arranged so as to cover the lower surface side of the holding member 6.

The operating member 13 made of a metal plate or the like has a flat holding portion 13a as shown in FIGS.
A connecting portion 13b bent downward at a substantially right angle from one end of the sandwiching portion 13a; and a flat portion 13c bent substantially at a right angle from one end of the connecting portion 13b and extending in a direction opposite to the flat plate portion 12a. . Then, the flat portion 13
The end of “a” is on the side of one end 13d, the end of the flat portion 13c is on the side of the other end 13e, and the flat portion 13c located between the one end 13d and the other end 13e is the intermediate portion 13f.

The operating member 13 is located at a hemispherical projection 13g provided to protrude upward from the flat portion 13c, a spring portion 13h formed by cutting and raising the flat portion 13c, and at the other end 13e. A bent portion 13j bent upward from the flat portion 13c, and a plurality of reinforcing ribs 13k provided across the flat portion 13c from the sandwiching portion 13a through the connecting portion 13b.

The operating member 13 has the flat portion 13c and the holding portion 12c which are fixed to the holding member 6 while the bent portion 13j is positioned in the holding portion 6c of the holding member 6. 6 and is mounted on the mounting portion 12 c and combined with the holding member 6. At this time, the flat portion 13c is located on the other surface side opposite to the one surface side on which the conductive path 11 of the element 9 is formed, and the spring portion 13h abuts on the other surface side of the element 9, and Both ends 10a are pressed against the support 6d, and the projection 13g faces the center 10 on the other surface of the element 9.

When the operating member 13 is combined,
The spring portion 13h is allowed to move by the inclined portion 6f provided on the lower surface of the holding member 6, and the holding portion 1
3a is in a state facing the flat plate portion 12a of the mounting member 12. The operating member 13 is prevented from slipping forward by the hook of the bent portion 13j, and is prevented from slipping backward by engaging with the holding member 6. With such a configuration, the blocking mechanism member 5 is formed.

In the combination of the shut-off mechanism member 5 and the battery 1, first, the battery 1 is inserted between the flat plate portion 12a and the sandwiching portion 13a with the seal portion 2d as a tip.
Then, in a state where the seal portion 2d is located between the flat plate portion 12a and the holding member 6, the main body of the battery 1 is
a and the clamping portion 13a. At this time, the holding member 6 is disposed on the side of the end surface 2c having a small area of the battery 1, and the holding portion 13a and the flat plate portion 12a
Are located on the upper and lower surfaces 2a and 2b where the area of the battery 1 is large.

In this state, one terminal portion 7 is electrically connected to one extraction terminal 3 by soldering or the like.
Then, the extraction terminal 3 is connected to the terminal portion 7 and the conductive path 11.
Through the terminal portion 8.

Next, the operation of the battery having the pressure-sensitive current interrupting mechanism having such a configuration will be described. A charger (not shown) is connected to the take-out terminal 4 and the terminal portion 8 for charging. In this charging, if the charging proceeds and becomes overcharged, or if the charging is performed with a current larger than the specified current, the internal pressure in the battery 1 increases due to generation of gas, and , The lower surfaces 2a and 2b expand outward and displace.

Then, when the pinching portion 13a is displaced outward with the other end 13e as a fulcrum and is displaced by a predetermined amount or more, the convex portion 1 located at the intermediate portion 13f is moved.
3g presses the other surface which is the lower surface of the element 9, and the element 9 is broken at the break inducing portion 10d with both end portions 10a being supported by the support portion 6d.

As a result, the conductive path 11 is interrupted, charging stops, and further charging is stopped. Further, when the element 9 is broken, the spring portion 13h pushes the broken element 9 upward from below to prevent the broken element 9 from returning and prevent the conductive path 11 from re-conducting. In this way, the operation of the battery having the pressure-sensitive current cutoff mechanism is performed.

The battery 1 can of course be applied to batteries other than the Li polymer secondary battery. In addition, the attachment member 12 is formed separately from the holding member 6 and is described as a combination of both. However, the attachment member 1 is integrally formed with the holding member 6.
2 may be provided.

Further, the mounting member 12 is deleted and the holding member 6 is removed.
May be attached to the end face 2c side of the battery 1 by appropriate means. Further, the operating member 13 has been described as being hooked on the holding member 6, but may be hooked on the mounting member 12. Further, instead of providing the cutout portion 10c, the breakage inducing portion 10d may be configured to be thinner than other portions.

[0036]

According to the battery having the pressure-sensitive current interruption mechanism of the present invention, the holding member 6 of the interruption mechanism member 5 is disposed on the end surface 2c side where the area of the exterior body 2 is small, so that the overall thickness can be reduced. , Thin type can be provided. Further, one end 13d of the operating member 13 is set with the other end 13e side of the operating member 13 as a fulcrum.
13f is displaced between the side and the other end 13e, and when the intermediate portion 13f is displaced by a predetermined amount or more, the element 9 is broken by the intermediate portion 13f and the conductive path 11
, The force for breaking the element 9 can be reduced, and the element 9 can be reliably broken.

Further, since the other end 13e of the operating member 13 is supported by the holding member 6, the structure is simple, the assembling property is good, and the inexpensive one can be obtained.

Further, a bent portion 13j is provided at the other end 13e of the operating member 13, and the bent portion 13j is hung on the holding member 6, so that the structure is simple, the assembling property is good and the inexpensive one is used. can get.

A retaining portion 6c formed of a concave portion is provided on one surface of the holding member 6, and the bent portion 13j is retained on the retaining portion 6c. Can be securely stopped.

The operating member 13 has a spring portion 13h formed by cutting and raising, and this spring portion 13h is provided on the other surface of the element 9 opposite to the one surface on which the conductive path 11 is formed. When the element 9 breaks while abutting,
Since the spring portion 13h maintains the broken state of the element 9 to prevent re-conduction of the conductive path 11, it is possible to provide a simple structure and no re-conduction.

The operating member 13 is provided with a convex portion facing the other surface of the element, and when the intermediate portion of the operating member is displaced, the convex portion presses the element and breaks. The configuration is as described above.

Further, the holding member 6 is provided with a mounting member 12 extending so as to face the one end 13d side of the operating member 13, so that the battery 1 is sandwiched between the mounting member 12 and the operating member 13. In addition, the attachment of the battery 1 to the shut-off mechanism member 5 is easy, and a battery with good productivity can be obtained.

Further, the mounting member 12 is formed separately from the holding member 6, and the mounting member 12 is combined with the holding member 6 and the two are integrated, so that the combination of both is easy and the productivity is high. Things are obtained.

The holding member 6 is provided with a groove 6e. The mounting member 12 is fitted into the groove 6e, and the two are combined. Therefore, the structure is simple and the combination of the two is easy. Good properties can be obtained.

The mounting member 12 has a flat plate portion 12a facing the operating member 13, a bent portion 12b bent at a substantially right angle from one end of the flat plate portion 12a, and a flat plate portion 12b bent from one end of the bent portion 12b. And a mounting portion 12c extending so as to face the portion 12a. The mounting portion 12c is fitted into the groove 6e, and a part of the operating member 13 is attached to the mounting portion 12c.
c and the plate-like portion 12a and the operating member 1
3, the battery 1 is sandwiched between the mounting member 12 and the mounting member 12.
3 can reliably hold the battery 1.

The actuating member 13 includes a flat clamping portion 13a opposed to the flat portion 12a, a connecting portion 13b bent from one end of the clamping portion 13a in the direction of the flat portion 12a, and a coupling portion 13b. Attachment part 1 from one end of part 13b
2c, the flat portion 13c is bent in parallel with the flat portion 13c. The flat portion 13c is placed on the mounting portion 12c, and the battery 1 is held between the holding portion 13a and the flat portion 12a. The position of the operating member 13 is stabilized, and the battery 1 can be reliably held between the mounting member 12 and the operating member 13.

The flat portion 13c of the operating member 13 has
Since the protruding portion 13g and the spring portion 13h are provided, the configuration is simple, and a product with good manufacturability can be obtained.

Further, both ends 10a of the element 9 are made to be able to be supported by the holding member 6, and
When f is displaced, both ends 10a of the element 9 are in contact with and supported by the support member 6 at both ends 10a.
Since the central portion 10b located between the portions a is pressed by the intermediate portion 13f of the operating member 13, the element 9 does not move when the element 9 is pressed by the intermediate portion 13, and the breakage of the element 9 is ensured. Can be.

The holding member 6 has a supporting portion 6d for supporting both ends 10a of the element 9, and at least one of the holding member 6 has the take-out terminal 3 and the conductive path 1a.
A plurality of terminal portions 7 and 8 for connecting between the terminal portions 7 and 8 are attached, and the element 9 is electrically connected to the conductive path 11 provided on one surface side supported by the support portion 6d. Since the connection is made, the element 9 can be connected to the terminal portions 7 and 8 in a state where the element 9 is positioned by the support portion 6d, and a product with good productivity can be provided. Also, an intermediate portion 13f of the operating member 13
Is located on the other surface side of the element 9 opposite to the conductive path 11, so that reliable insulation between the conductive path 11 and the mounting member 13 can be obtained.

The terminal portions 7 and 8 are formed of a metal plate, and have wide portions 7 a and 8 a held by the holding member 6. The terminal portions 7 and 8 are narrower than the wide portions 7 a and 8 a and are outward from the holding member 6. Narrow portions 7b, 8b extending to
Since b is connected to the conductive path 11, the narrow portions 7 b and 8 b can be made flexible so that the connection between them can be facilitated and the terminal portions 7 and 8 can be easily broken while the element 9 is being broken. The resistance can be reduced, and the element 9 can be reliably broken.

In the central part 10b of the element 9,
Break inducing section 10 for facilitating breaking of element 9
Since d is provided, the element 9 can be reliably broken.

The break inducing portion 10d is provided with the element 9
Is provided with the cutout portion 10c in the width direction, so that the configuration is simple and a product with good productivity can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a battery having a pressure-sensitive current interruption mechanism according to the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a rear view of a battery having a pressure-sensitive current interrupting mechanism according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a plan view of a holding member according to the battery having the pressure-sensitive current cutoff mechanism of the present invention.

FIG. 6 is a front view of a holding member according to the battery having the pressure-sensitive current interrupting mechanism of the present invention.

FIG. 7 is a bottom view of a holding member according to the battery having the pressure-sensitive current interrupting mechanism of the present invention.

FIG. 8 is a plan view of an element relating to a battery having the pressure-sensitive current cutoff mechanism of the present invention.

FIG. 9 is a front view of an element relating to a battery having the pressure-sensitive current interrupting mechanism of the present invention.

FIG. 10 is a plan view of an operating member according to the battery having the pressure-sensitive current interrupting mechanism of the present invention.

FIG. 11 is a front view of an operating member according to the battery having the pressure-sensitive current cutoff mechanism of the present invention.

FIG. 12 is a back view of an operating member according to the battery having the pressure-sensitive current interrupting mechanism of the present invention.

FIG. 13 is a sectional view taken along line 13-13 of FIG. 10;

FIG. 14 is a plan view of a mounting member according to the battery having the pressure-sensitive current cutoff mechanism of the present invention.

FIG. 15 is a side view of a mounting member according to the battery having the pressure-sensitive current interrupting mechanism of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery 2 Outer body 2a Upper surface 2b Lower surface 2c End surface 3 Take-out terminal 4 Take-out terminal 5 Cut-off mechanism member 6 Holding member 6a Base 6b Notch 6c Latch 6d Support 6e Groove 6f Slope 7 Terminal 7a Wide width 7b Width part 8 Terminal part 8a Wide part 8b Narrow part 9 Element 10 Insulating substrate 10a End part 10b Central part 10c Notch part 10d Break induction part 11 Conductive path 12 Mounting member 12a Flat part 12b Bend part 12c Mounting part 12d Rib 13 Operating member 13a Nipping portion 13b Connecting portion 13c Flat portion 13d One end 13e The other end 13f Intermediate portion 13g Convex portion 13h Spring portion 13j Bend portion 13k Rib

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toru Tsushima 1-7 Yukitani Otsukacho, Ota-ku, Tokyo Alps Electric Co., Ltd. (72) Inventor Kazuhiro Sasaki 1-7 Yukitani Otsukacho, Ota-ku, Tokyo Alp (72) Inventor Yoshiki Ishikawa 1-7 Yukitani Otsuka-cho, Ota-ku, Tokyo Alps Electric Co., Ltd. (72) Inventor Katsufumi 1-7 Yukitani-Otsuka-cho, Ota-ku, Tokyo Alps Electric F term (reference) 5H022 AA09 BB02 CC08 CC12 KK01 5H029 AJ12 BJ04 BJ27 CJ04 DJ05

Claims (17)

[Claims] 1. A battery having a built-in power generator and deformable by internal pressure, a battery having a plurality of extraction terminals serving as an electric path from the power generator to the outside of the housing, and a battery combined with the battery. A blocking mechanism member, wherein the blocking mechanism member is located outside the exterior body, and at least one end thereof is disposed on an upper surface or a lower surface having a large area of the exterior body, and is displaced outward with an increase in internal pressure. Operating member, an insulating holding member disposed on an end surface side of the exterior body having a small area, and a conductive path held by the holding member and having one end electrically connected to at least one of the takeout terminals. When one end of the operating member is displaced by the internal pressure of the battery, the element is positioned between the one end and the other end of the operating member with the other end of the operating member as a fulcrum. A pressure-sensitive current interrupting mechanism, wherein when the intermediate portion is displaced and the intermediate portion is displaced by a predetermined amount or more, the element is broken by the intermediate portion and the conductive path is interrupted. A battery having: 2. The battery according to claim 1, wherein the other end of the operating member is supported by the holding member. 3. The battery according to claim 2, wherein a bent portion is provided at the other end of the operating member, and the bent portion is hooked on the holding member. . 4. The pressure-sensitive current interrupt according to claim 3, wherein a latch portion formed of a concave portion is provided on one surface of the holding member, and the bent portion is latched on the latch portion. Battery with mechanism. 5. The operating member has a cut-and-raised spring portion, and the spring portion comes into contact with the other surface of the element opposite to the surface on which the conductive path is formed. 5. The device according to claim 1, wherein when the element is broken, the spring portion maintains the broken state of the element to prevent re-conduction of the conductive path. 6. A battery having a pressure-sensitive current interrupting mechanism. 6. The operating member is provided with a convex portion facing the other surface of the element, and when the intermediate portion of the operating member is displaced, the convex portion presses the element and breaks. 6. The method according to claim 1, wherein
A battery having the pressure-sensitive current cut-off mechanism according to any one of the above. 7. The holding member is provided with a mounting member extending so as to face the one end side of the operating member, and the battery is sandwiched between the mounting member and the operating member. A battery having the pressure-sensitive current cutoff mechanism according to any one of claims 1 to 6. 8. The pressure-sensitive device according to claim 7, wherein the mounting member is formed separately from the holding member, and the mounting member is combined with the holding member to integrate them. A battery having a current interruption mechanism. 9. The battery according to claim 8, wherein a groove is provided in the holding member, and the mounting member is fitted into the groove, and the two are combined. 10. The mounting member has a flat plate portion facing the operating member, a bent portion bent at a substantially right angle from one end of the flat plate portion, and a flat portion bent from one end of the bent portion to face the flat plate portion. The mounting portion is fitted into the groove, a part of the operating member is placed on the mounting portion, and the flat portion and the operating member 10. The battery having a pressure-sensitive current interrupting mechanism according to claim 9, wherein the battery is held between the batteries. 11. The operating member includes a flat holding portion facing the flat portion, a connecting portion bent from one end of the holding portion toward the flat portion, and one end of the connecting portion. And a flat portion bent in parallel with the mounting portion, and the flat portion is placed on the mounting portion, and the battery is held between the holding portion and the flat portion. A battery having the pressure-sensitive current cutoff mechanism according to claim 10. 12. The operating member according to claim 1, wherein the flat portion of the operating member is provided with the convex portion and the spring portion.
A battery having the pressure-sensitive current cutoff mechanism according to claim 1. 13. A state in which both ends of the element can be supported by the holding member, and when the intermediate portion of the operating member is displaced, both ends of the element are in contact with and supported by the support member. The pressure-sensitive current interrupting mechanism according to any one of claims 1 to 12, wherein a central portion located between both ends of the element is pressed by the intermediate portion of the operating member. Battery. 14. The holding member has a support portion for supporting both ends of the element, and the holding member has a plurality of terminal portions, at least one of which connects between the take-out terminal and the conductive path. The element is configured such that the plurality of terminal portions are electrically connected to the conductive path provided on one surface side supported by the support portion, and the intermediate portion of the operating member is connected to the conductive path. 14. The battery having a pressure-sensitive current interrupting mechanism according to claim 13, wherein the battery is located on the other surface of the element opposite to the element. 15. The terminal portion has a wide portion formed of a metal plate and held by the holding member, and a narrow portion having a width smaller than the wide portion and extending outward from the holding member. And
15. The battery according to claim 14, wherein the narrow portion is connected to the conductive path. 16. The pressure-sensitive current interrupt according to claim 1, wherein a break inducing section for facilitating breakage of the element is provided at the central portion of the element. Battery with mechanism. 17. The battery having a pressure-sensitive current interrupting mechanism according to claim 16, wherein the break inducing section is configured by providing a cutout in a part of the element in a width direction.