CN101882687A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN101882687A CN101882687A CN2009110001315A CN200911000131A CN101882687A CN 101882687 A CN101882687 A CN 101882687A CN 2009110001315 A CN2009110001315 A CN 2009110001315A CN 200911000131 A CN200911000131 A CN 200911000131A CN 101882687 A CN101882687 A CN 101882687A
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- CN
- China
- Prior art keywords
- battery
- battery pack
- safety element
- element body
- seal closure
- 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
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- 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
Abstract
The invention provides a kind of the realization miniaturization, light-weighted while, under the situation that unit's battery expands when charging, also can suppress the battery pack of the flutter of safety element.Battery pack has the core bag (5) that is made of first battery (10), safety element (50), protective circuit (40) etc.Safety element (50) is configured on the seal closure (10a) of first battery (10), constitutes by element body (51) with from its extended two lead-in wires (51,52).On the other hand, a lead-in wire (52) is electrically connected with the negative terminal (10b) of first battery (10).In the core bag (5) of battery pack (1), under the state of insertion as the element retainer (60) of the buffer unit that the bending stress that is produced by seal closure (10a) is cushioned between element body (51) and the seal closure (10a), safety element (50) is disposed thereon with respect to seal closure (10a).
Description
Technical field
The present invention relates to battery pack, particularly be used for suppressing the technology of the flutter of built-in safety component.
Background technology
In recent years, along with popularizing of mobile devices such as mobile phone, become many as the use of the battery pack (パ Star Network Electricity pond) of power supply.With Fig. 6 structure according to the battery pack of prior art is described.Fig. 6 shows the open cube display in the structure of the structure inner core bag of battery pack.
As shown in Figure 6, in the core bag by formations such as first battery 910, PTC (positive temperature coefficient) element 950 mounted thereto and protective circuits 940.Unit's battery 910 has the outward appearance of flat square shape, and negative terminal 910b is set on seal closure 910a.Wherein, in first battery 910, seal closure 910a and negative terminal 910b insulation, seal closure 910a becomes positive terminal.
Be connected with connection lead-in wire 970 on the hush panel 910a of first battery 910, the fore-end that connects lead-in wire 970 bends to X-direction, is connected by the conductive welding disk of this fore-end with the substrate 944 of protective circuit 940.
Battery pack is by the core bag shown in Fig. 6, constitute by the outer dress label etc. that insert to be shaped formed top molded part and bottom molded part with respect to the core bag and cover the interarea 910c etc. of first battery 910.
Patent documentation 1: TOHKEMY 2003-17022 communique
Patent documentation 2: TOHKEMY 2003-282036 communique
Patent documentation 3: TOHKEMY 2003-346747 communique
But in the current packaging battery, unit's battery 910 expands during charging, is subjected to the influence of its expansion, produces distortion, element characteristic change sometimes in the element body 951 of the PTC element 950 that is connected with the negative terminal 910b of first battery 910.Relation between the flutter of the expansion of first battery 910 and PTC element 950 is described with Fig. 7.Figure 7 illustrates the B part of the core bag shown in Fig. 6.
As shown in Figure 7, first battery 910 is owing to the interarea 910c of the outer dress of charging box expands on the direction vertical with paper.For example under the situation of lithium rechargeable battery, the expansion of unit's battery is because charging makes lithium ion move to negative pole from positive pole during charging, be accompanied by moving of this ion, in positive pole, produce the expansion of lithium and cobalt oxides crystallization, in negative pole, produce the expansion of carbon, thereby the volumetric expansion that produces electrode body produces.
Because the expansion of when charging unit battery 910, seal closure 910a resembles bending the line L3 that represents with two chain-dotted lines.Wherein, in battery pack; omitted illustrated top molded part and form with the state of seal closure 910a, PTC element 950 and the protective circuit 940 etc. that cover first battery 910 in Fig. 7 etc., with the above-mentioned crooked interlock of seal closure 910a, substrate 944 also resembles the line L4 crooked in the protective circuit 940.
As mentioned above, the seal closure 910a of first battery 910 and the substrate 944 of protective circuit 940 resemble line L3, the L4 crooked, and C part therebetween also bends.Thereby, in the current packaging battery, between the substrate 944 of the negative terminal 910b of first battery 910 and protective circuit 940, be in the element body 951 of the PTC element 950 that the state that sets up is provided with and produce distortion, thereby make element characteristic that change take place.The flutter of the safety element of such PTC element 950 grades has problem from the such viewpoint of control (stablizing of quality) of battery pack.
Have again, in the last few years, battery pack is required miniaturization, lightweight, the further tendency of attenuation such as thickness of slab of the substrate 944 of protective circuit 940 is arranged, it is believed that aforesaid problem becomes more deep problem gradually.
Summary of the invention
The present invention finishes in order to address the above problem, and its objective is that providing a kind of is realizing miniaturization, light-weighted while, even under the situation that unit's battery expands when charging, also can suppress the battery pack of the flutter of safety element.
To achieve these goals, the present invention adopts following structure.
Battery pack according to the present invention is that main element constitutes with first battery, safety element and protective circuit.
Unit's battery at one end face is formed with at least one terminal of both positive and negative polarity.
Safety element constitutes by element body with from its extended two lead-in wires.And a terminal that is formed on first battery one end face in the lead-in wire in two lead-in wires and the first battery is electrically connected.
Protective circuit is electrically connected with respect to another lead-in wire in the safety element.
Safety element and protective circuit are configured on the end face of first battery successively.
Battery pack of the present invention is characterised in that, the buffer component that the stress that the distortion of the first battery when being inserted with charging at least between an end face of element body and first battery causes cushions.
Have, above-mentioned safety element is except the PTC element again, and what also refer to temperature-sensitive elements such as NTC (negative temperature coefficient of resistance) element and other is used for battery-operated various elements etc.
In addition, the buffer component of battery pack of the present invention is different with the insulation board 960 of the battery pack of above-mentioned prior art, has the buffering effect that above-mentioned stress is cushioned.That is, in order to reduce weight and volume, the insulation board 960 of above-mentioned current packaging battery adopts laminar insulation board, does not have the buffering effect that above-mentioned stress is cushioned.Relative therewith, the buffer component of battery pack of the present invention has the mechanical strength of the above-mentioned stress of buffering.
As mentioned above, in battery pack of the present invention, safety element is being set on the end face of first battery under the state that its element body has been inserted buffer component.Wherein, buffer component is additional to element body as mentioned above, the stress that buffering produces along with the distortion of first battery.Promptly; battery pack of the present invention is not the battery pack as the prior art shown in Fig. 6; safety element is set between the seal closure of first battery and protective circuit unguard; but between an end face of element body and first battery, insert buffer component, the influence that the stress that has suppressed to produce along with the distortion of first battery thus produces element body.
Battery pack of the present invention is by adopting said structure, even make first cell expansion in charging, seal closure (end face) is under the situation of arciform bending, because the stress that this bending causes element body is cushioned the member buffering, so be difficult to element body is had a direct impact, so the ess-strain that produces in the element body of safety element reduces.Thereby, the element characteristic change of the safety element that the distortion of unit's battery caused when battery pack of the present invention can suppress to charge.Better effects if under such structure situation that the thickness of slab of substrate is thinned in protective circuit.
Thereby battery pack of the present invention can realized miniaturization, light-weighted while, under the situation that has taken place to expand at first battery, also can suppress the flutter of safety element, has high quality stability.
Battery pack of the present invention can adopt following distortion.
Battery pack of the present invention can adopt have with safety element in the parts (for example shell of shallow discoid or channel-like shell etc.) of form of the corresponding recess of shape of element body as buffer component, the opening of this recess can be towards a side setting opposite with an end face of first battery.In this case, prior element body with safety element is contained in the recess of buffer component.Have, in the buffer component of such shape, peripheral part of recess becomes flange again, and this flange can improve the rigidity to bending stress.
In addition, in battery pack of the present invention, can adopt following structure: the opening of buffer component center dant is stopped up by lid under the element body of safety element is incorporated in state in the recess.By adopting such structure, can realize more reliable protection to element body.
In addition, battery pack of the present invention can adopt following structure: an end face, safety element and the protective circuit of first battery are all covered by resin forming spare.
Description of drawings
Fig. 1 is the open cube display of outward appearance that the battery pack 1 of execution mode 1 is shown.
Fig. 2 is the open cube display that the structure of the core bag (コ ア パ Star Network) 5 in the battery pack 1 is shown.
Fig. 3 is the side view that the major part in the battery pack 1 is shown.
Fig. 4 is the stereogram that the major part of the core bag 6 in the battery pack 2 of execution mode 2 is shown.
Fig. 5 is the stereogram that the major part of the core bag 7 in the battery pack 3 of execution mode 3 is shown.
Fig. 6 is the open cube display of structure of core bag that the battery pack of prior art is shown.
Fig. 7 is the side view of critical piece that the core bag of prior art is shown.
The drawing reference numeral explanation
1,2,3 battery packs
5,6,7 core bags
10 yuan of batteries
20 top molded parts
21 bottom molded parts
30 outer dress labels
40 protective circuits
41 outside terminals
42 lids
43 electronic units
44 base main body
50 safety elements
51 element bodies
52,53 component leads
60,61,63 element retainers
62 elements lid
70 connect lead-in wire
Embodiment
An example explanation is shown below is used for implementing best mode of the present invention.Have, the execution mode that adopts in the following explanation is to be used for illustrating so that understand structure of the present invention and effect, a example that effect adopted easily again, not limited by the mode below any.
[execution mode 1]
1. the surface structure of battery pack 1
With Fig. 1 surface structure according to the battery pack 1 of execution mode 1 is described.
As shown in Figure 1, battery pack 1 is included in the core bag 5 that contains first battery 10 in the composed component.The left end of the X-direction of core bag 5 is covered by top molded part 20, and the right-hand end of X-direction is covered by bottom molded part 21.The outer surface of first battery 10 of battery pack 1 is adorned label 30 outward and is covered.
In top molded part 20, form three window portion 20a, in each window portion, expose outside terminal 41.
Top molded part 20 usefulness cryogenic forming methods or the known method that is called as hot melt form, and the core bag 5 of packing in the mould that has with core bag 5 and top molded part 20 corresponding spaces injects the resin of fusion, insertion moulding top molded part 20.
2. the structure of core bag 5
The structure of core bag 5 is described with Fig. 2.
As shown in Figure 2, the first battery 10 with core bag 5 has with the length of X-direction and Y direction to be compared with width, and the flat square outward appearance that the height of Z-direction is little is provided with negative terminal 10b at the last protrusion of seal closure (hush panel) 10a of X-direction lower-left side.Wherein, seal closure 10a and negative terminal 10b electric insulation, seal closure 10a becomes positive terminal.
The component lead 52 of attachment security element 50 on the negative terminal 10b in first battery 10.Safety element 50 for example is the PTC element, constitutes by the element body 51 of bulk with from its two ends to the component lead 52,53 of Y direction extension setting.
The fore-end of another component lead 53 of safety element 50 becomes L word shape to X-direction lateral bending song at the moment, and the conductive welding disk (omitting diagram) that is provided with on the substrate 44 by this fore-end and protective circuit 40 is connected.
On the seal closure 10a of first battery 10, in the left side of Y direction, be connected with connection lead-in wire 70 on the part.The fore-end that connects lead-in wire 70 becomes L word shape to the X-direction bending, and the conductive welding disk (omit and illustrate) that is provided with on the substrate 44 by this fore-end and protective circuit 40 is connected.
3. the superiority of battery pack 1
Has the superiority of the battery pack 1 of said structure with Fig. 3 explanation.Fig. 3 is the side view of major part that the structure SMIS bag 5 of battery pack 1 is shown.
Battery pack 1 is carried out under the situation of charging in it uses, and the pole plate in first battery 10 (omitting diagram) expands.Accompany therewith, as shown in Figure 3, in core bag 5, the interarea 10c of first battery 10 expands on the direction perpendicular to paper.
Under the situation that the interarea 10c of first battery 10 expands, seal closure 10a is crooked as line L1.That is, the middle body of the Y direction a little less than the relative stiffness of seal closure 10a bends to arciform to the X-axis downside.Like this, under the situation of seal closure 10a bending as line L1, the substrate 44 of protective circuit 40 is also crooked as line L2.Though this has omitted diagram in Fig. 3, the resin portion of top molded part 20 enters into seal closure 10a between the substrate 44 of protective circuit 40, and this resin portion will be by the Stress Transfer that bending produced of seal closure 10a to substrate 44.
Wherein, as mentioned above, in the battery pack of prior art, because the bending of the seal cover 910a that the expansion of first battery 910 causes, making safety element is to produce distortion, the change that has produced the element characteristic of PTC element 950 thus in the element body 951 of PTC element 950.Specifically, when having produced distortion as mentioned above, in the operating temperature of PTC element 950 (during triggering in operating temperature, it is big that resistance becomes) under, because the element the when resin that has been out of shape hinders PTC element 950 to trigger expands, so the operating temperature of original PTC element 950 is with respect to original value difference.
To this, in the battery pack 1 of present embodiment, the element body 51 of safety element 50 is contained in the recess 60a (with reference to Fig. 2) of element retainer 60.Wherein, by the structure of recess 60a and the structure of sidewall 60b etc., the rigidity of element retainer 60 and intensity are uprised.Therefore, because the stress that the bending of seal closure 10a produces is not applied directly on the element body 51 of safety element 50, perhaps reduce, so the element characteristic of safety element 50 is difficult to change.That is, in battery pack 1,, also can realize the stable of element characteristic in the safety element 50, have high quality stability even under the situation that when charging unit battery 10 expands.That is the operating temperature and the original different problem of value that, can suppress the such PTC element of the battery pack of aforesaid prior art.
Have again, because the element retainer 60 of the battery pack of execution mode is not into flat, it can be the channel-like body (perhaps having omitted the box-shaped body of upper surface) that surrounds the both sides of recess 60a with flange shape sidewall 60b (part 60b1 and part 60b2), so as the buffer component of the bending stress of the face that is used for resisting element body 51, better effects if.That is, compare,, make for intensity and improve to the bending stress of X-direction by the upright sidewall 60b that establishes on the X-direction that is included in Fig. 2 with simple flat plate.
[execution mode 2]
The structure of the battery pack 2 of execution mode 2 is described with Fig. 4.Have again, in Fig. 4, for different with according to the battery pack 1 of execution mode 1 are described, only choose safety element 50 and around it element be described.Not shown part is identical with battery pack 1 structure of above-mentioned execution mode 1.
As shown in Figure 4, the battery pack 2 of present embodiment has core bag 6, and the safety element 50 of core bag 6 is accommodated in the space that forms between element retainer 61 and the element lid 62.Specifically, element retainer 61 is identical with element retainer 60 in the above-mentioned battery pack 1, have with safety element 50 in the recess 61a of element body 51 corresponding shapes, form flange shape sidewall 61b up and down relatively with recess 61a along Z-direction.
The element body 51 of safety element 50 is accommodated in the recess 61a of element retainer 61.And the battery pack of present embodiment has by 62 pairs on element lid and is contained in the structure that the element body 51 of the safety element 50 under the state in the recess 61a of element retainer 61 covers.
The element lid parts that contact with element body 51 safety element 50 62 become groove depression (slot part 62a), and its Z-direction is surrounded by flange shape sidewall 62b up and down.The Z-direction width and the element retainer 61 of element lid 62 are roughly the same, and the end face of the sidewall 62b of element lid 62 contacts with the end face of the sidewall 61b of element retainer 61.
Other structure is identical with above-mentioned execution mode 1, so omit explanation.
In the battery pack 2 of present embodiment, the both sides of the Z-direction of the element body 51 of safety element 50 are covered by element retainer 61 and element lid 62.Thus, the battery pack 2 of present embodiment can be changed than the battery pack 1 further element characteristic that suppresses safety element 50 of above-mentioned execution mode 1.Promptly, in expansion seal closure 10a is bent under the arciform situation because of first battery 10, think that also the stress to the element body 51 of safety element 50 not only is applied on the face relative with seal closure 10a, and lead to betwixt the resin portion of the top molded part 20 (with reference to Fig. 1) of filling, also as wraparound, bring influence even be applied on the face of opposition side.
With respect to this, in the battery pack 2 of present embodiment, owing to be provided with element lid 62, so can prevent the stress influence of the face relative with aforesaid protective circuit 40 (with reference to Fig. 2).
Thereby, in the battery pack 2 of present embodiment, even the battery pack of above-mentioned execution mode 11 increases, the element characteristic change of the safety element 50 that the expansion of unit's battery 10 causes in the time of also can suppressing to charge effectively.
[execution mode 3]
With the structure of Fig. 5 explanation according to the battery pack 3 of execution mode 3.Have again, in Fig. 5, for different with according to the battery pack 1,2 of execution mode 1,2 are described, only choose safety element 50 and around it element be described.Not shown part is identical with battery pack 1,2 structures according to above-mentioned execution mode 1,2.
As shown in Figure 5, in the core bag 7 of the battery pack 3 of present embodiment, the shape of element retainer 63 is with respect to battery pack 1,2 differences of above-mentioned execution mode 1,2.Specifically, the upper surface of the sidewall 63b of the element retainer 63 of the core bag 7 of present embodiment becomes a face, and the element body 51 of PTC element 50 is accommodated in the slot part that forms between the 63b of two side.
Have again, as shown in Figure 5, the upper surface of the element body 51 of PTC element 50 (X-direction left side face) to than the upper surface of the sidewall 63b of element retainer 63 a little near the side setting of seal closure 10a.That is, when Z-direction was seen the element body 51 of PTC element 50 and element retainer 63, the element body 51 of PTC element 50 was in the state of all being hidden by the sidewall 63b of element retainer 63.
In the battery pack 3 of present embodiment, owing to forming its upper surface, the sidewall 63b with element retainer 63 becomes a face, so the stress that element body 51 is applied from its side also can be cushioned effectively by element retainer 63.
In above-mentioned execution mode 1～3; though the seal closure 10a, safety element 50 and the protective circuit 40 that have adopted first battery 10 are by the formed molded part of low-temperature resins moulding (top molded part) 20 structures that covered; even but be not the battery pack that covers the form at above-mentioned position by molded part; by adopting element retainer 60,61,63, also can obtain the effect of the change of suppression element characteristic.Promptly, even between the seal closure 10a of first battery 10 and safety element 50 etc., do not insert resin portion, but under the situation in space, transmitting stress by component lead 52,53, element retainer 60,61,63 plays at least the effect to the pressure buffer of element body 51.
In addition, in above-mentioned execution mode 1～3, though be example with the battery pack 1,2,3 of a built-in first battery 10 respectively, structure of the present invention also has been applicable to the battery pack of a plurality of first batteries built-in, can obtain above-mentioned identical effect.
In addition, in above-mentioned execution mode 1～3, having adopted the element retainer 60,61,63 of the channel-like of recess 60a, 61a with receiving element main body 51, only is flat element retainer but also can adopt.In this case, compare with said elements retainer 60,61,63, mechanical strength reduces slightly, can be with respect to the change of the battery pack suppression element characteristic of prior art.
In addition, in above-mentioned execution mode 1～3, adopt lithium rechargeable battery as first battery 10, but the shape and the weight of first battery are not limited by it with flat square outward appearance.For example, shape can adopt cylinder type, cam type, and kind can adopt NI-G secondary cell or nickel-hydrogen secondary cell etc.
In addition, in above-mentioned execution mode 1～3, can adopt the element that constitutes by resin material as element retainer 60,61,63 or element lid 62, but constituent material is not limited by it with insulating properties.For example, can adopt material of having implemented insulation processing on the surface of metallic plate etc.
And, in above-mentioned execution mode 1 and execution mode 2, adopt the example of PTC element, but in addition as safety element 50, can adopt temperature-sensitive element such as NTC element or temperature fuse element and other be used for carry out battery-operated various element as safety element.
The present invention is used for power supply of mobile device etc. etc., the battery pack that is used to realize having high reliability.
Claims (4)
1. battery pack, have: at one end face is formed with first battery of at least one terminal of both positive and negative polarity; Constitute by element body with from extended two lead-in wires of this element body, and a safety element that goes between and be electrically connected with a described terminal; The protective circuit that is electrically connected with another lead-in wire of described safety element,
Described battery pack is characterised in that,
Described safety element and described protective circuit are configured on the end face of described first battery successively,
The buffer component that the stress that the distortion of the described first battery when being inserted with charging at least between a described element body and a described end face causes cushions.
2. battery pack as claimed in claim 1 is characterized in that,
Described buffer component has the corresponding recess of shape with the element body of described safety element,
The opening of described recess sets in the mode towards a side opposite with a described end face,
The element body of described safety element is incorporated in the recess of described buffer component.
3. battery pack as claimed in claim 2 is characterized in that,
The opening of the recess of described buffer component is stopped up by lid under the element body of described safety element is incorporated in state in the described recess.
4. as each described battery pack in the claim 1～3, it is characterized in that,
A described end face, described safety element and described protective circuit are all covered by resin forming spare.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-279716 | 2008-10-30 | ||
| JP2008279716A JP5377928B2 (en) | 2008-10-30 | 2008-10-30 | Pack battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101882687A true CN101882687A (en) | 2010-11-10 |
Family
ID=42298004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009110001315A Pending CN101882687A (en) | 2008-10-30 | 2009-10-30 | Battery pack |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5377928B2 (en) |
| CN (1) | CN101882687A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5517165B2 (en) * | 2010-12-22 | 2014-06-11 | 日立マクセル株式会社 | Sealed battery |
| JP5762829B2 (en) * | 2011-06-07 | 2015-08-12 | 三洋電機株式会社 | Pack battery |
| KR20130016034A (en) * | 2011-08-04 | 2013-02-14 | 주식회사 엘지화학 | Secondary battery pack with improved safety |
| CN205985249U (en) * | 2016-08-11 | 2017-02-22 | 广州小鹏汽车科技有限公司 | Batteries of electric vehicle module temperature detect structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200406606Y1 (en) * | 2005-11-03 | 2006-01-23 | 스탠다드에너지테크(주) | Battery Pack for Mobile Phone |
| JP2007323875A (en) * | 2006-05-31 | 2007-12-13 | Sony Corp | Top cover, battery pack and its manufacturing method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003123714A (en) * | 2001-10-16 | 2003-04-25 | Nec Tokin Tochigi Ltd | Battery pack |
| JP3806695B2 (en) * | 2003-01-31 | 2006-08-09 | 三洋電機株式会社 | Battery pack with built-in protective element |
| JP2005183176A (en) * | 2003-12-19 | 2005-07-07 | Sanyo Electric Co Ltd | Battery pack and manufacturing method of same |
| JP2006032240A (en) * | 2004-07-21 | 2006-02-02 | Nissan Motor Co Ltd | Battery pack |
| JP2006092988A (en) * | 2004-09-27 | 2006-04-06 | Matsushita Electric Ind Co Ltd | Self-reset protection element |
| JP4947893B2 (en) * | 2004-12-03 | 2012-06-06 | 三洋電機株式会社 | Battery pack |
| JP2007165698A (en) * | 2005-12-15 | 2007-06-28 | Mitsubishi Electric Corp | Electric power storage device |
| JP4953678B2 (en) * | 2006-03-30 | 2012-06-13 | 三洋電機株式会社 | Pack battery |
| JP5036239B2 (en) * | 2006-07-18 | 2012-09-26 | 三洋電機株式会社 | Battery pack and manufacturing method thereof |
| JP2008251692A (en) * | 2007-03-29 | 2008-10-16 | Sanyo Electric Co Ltd | Heat sensitive element, battery pack and electronic device equipped with the same, and manufacturing method of heat sensitive element |
-
2008
- 2008-10-30 JP JP2008279716A patent/JP5377928B2/en not_active Expired - Fee Related
-
2009
- 2009-10-30 CN CN2009110001315A patent/CN101882687A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200406606Y1 (en) * | 2005-11-03 | 2006-01-23 | 스탠다드에너지테크(주) | Battery Pack for Mobile Phone |
| JP2007323875A (en) * | 2006-05-31 | 2007-12-13 | Sony Corp | Top cover, battery pack and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5377928B2 (en) | 2013-12-25 |
| JP2010108754A (en) | 2010-05-13 |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20101110 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |