GB2504116A - Secondary Battery Pack - Google Patents
Secondary Battery Pack Download PDFInfo
- Publication number
- GB2504116A GB2504116A GB1212799.9A GB201212799A GB2504116A GB 2504116 A GB2504116 A GB 2504116A GB 201212799 A GB201212799 A GB 201212799A GB 2504116 A GB2504116 A GB 2504116A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secondary battery
- battery cells
- top surface
- deformation
- battery cell
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
-
- 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
A secondary battery pack is provided with a plurality of secondary battery cell groups 100,200,300,400 . With a special serial and parallel connection manner, the respective battery cell groups can still work properly in the case that any single battery cell is faulty. Moreover, the positive or negative terminal of each of the battery cells of the respective battery cell groups is connected to a fuse 51,52,53 , so that the failed secondary battery cell is isolated from the remaining good secondary battery cells to improve safety of the secondary battery pack.
Description
SECONDARY BATTERY PACK
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a secondary battery and more particularly to a safety secondary battery pack.
Description of the Prior Art
The existing secondary batteries are mostly provided with a great number of single secondary battery cells which are connected in series or parallel in order to have a high output capacity.
Since the single secondary battery cells are connected in series or in parallel, when any of battery cells is broken, it may lead to the failure of the whole secondary battery pack. Moreover, if the bad battery cell is not electrically isolated from other good ones, it will lead to the failure of the good battery cells or may even affect the safety of the whole battery pack.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a secondary battery pack, with a special serial and parallel connectioii manner, the respective battery cell groups of the present invention can still work properly in the case that any single battery cell is faulty.
Another object of the present invention is to provide a secondary battery pack, wherein the positive or negative terminal of each of the battery cells of the respective battery cell groups is connected to a fuse, namely, each of the secondary battery cells has a fuse. When any of the secondary battery cells fails and results in the current flowing through the fuse exceeding the rated value, the fuse electrically connected to the failed secondary battery cell will be blown to stop current from flowing, so that the failed secondary battery cell is isolated from the rest good secondary battery cells to improve safety of the battery pack.
Yet another object of the present invention is to provide a safety secondary battery pack, the secondary battery cell groups are spaced at an interval equivalent to two fiflhs the thickness of the square battery cells, which prevents the rest good square secondary battery cells from being crushed or destroyed or damaged by battery inflation when two neighboring secondary square battery cells are faulty and inflate.
To achieve the above objects, a secondary battery pack in accordance with the present invention comprising: a first secondary battery cell group, a second secondary battery cell group, a third secondary battery cell group, a fourth secondary battery cell group, a first fuse group, a second fuse group, and a third fuse group.
The first secondary battery cell group includes two parallel connected secondary battery cells which each include a first positive terminal and a first negative terminal.
The second secondary battery cell group including two parallel connected second secondary battery cells which each include a second positive terminal and a second negative terminal electrically connected to the first positive terminals. The third secondary battery cell group includes two parallel connected third secondary battery cells which each include a third positive terminal, and a third negative terminal electrically connected to the second positive tenninals. The fourth secondary battery cell group includes two parallel connected fourth secondary battery cells which each include a fourth positive terminal, and a fourth negative terminal electrically connected to the third positive terminals. The first fttse group includes two first frises which are electrically connected to the first negative terminals of tile first secondary battery cells. The second fttse group includes two second frises which are electrically connected to the second positive terminals of the second secondary battery cells and the third negative terminals of the third secondary battery cells. The third fuse group includes two third fuses which are electrically connected to the fourth negative terminals of the fourth secondary battery cells.
To achieve the above objects, another secondary battery pack in accordance with the present invention is similar to the abovementioned battery pack except that: The first fuse group includes two first fuses which are electrically connected to the first negative terminals of the first secondary battery cells.
The second fuse group including two second fuses which are electrically connected to the second positive terminals of the second secondary battery cells.
The third fuse group includes two third fuses which are electrically connected to the third negative terminals of the third secondary battery cells.
The secondary battery pack further comprises a fourth fuse group including two fourth fuses which are electrically connected to the fourth positive terminals of the fourth secondary battery cells.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. I is an illustrative view of a secondary battery paclc iii accordance with a first embodiment of the present invention; Fig. 2 is an illustrative view of a secondary battery pack in accordance with a second embodiment of the present invention; Fig. 3 is an illustrative view of a secondary battery pack in accordance with a third embodiment of the present invention; Fig. 4 is an illustrative view of a secondary battery pack in accordance with a fourth embodiment of the present invention; Fig. 5 is an illustrative view of a secondary battery paclc in accordance with a fifth embodiment of the present invention; and Fig. 6 is an illustrative view of a secondary battery pack in accordance with a sixth embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiments in accordance with the present invention.
Referring to Fig. 1, a secondary battery pack in accordance with a first embodiment of the present invention comprises: a first secondary battery cell group 100, a second secondary battery cell group 200, a third secondary battery cell group 300, a fourth secondary battery cell group 400, a first fuse group 51, a second fuse group 52, and a third fuse group 53.
The first secondary battery cell group 100 includes two parallel connected first secondary battery cells 10 which each include a first positive terminal Ii and a first negative terminal 12. In this embodiment, the two first secondary battery cells have their first positive terminals 11 electrically connected to each other, and have their first negative terminals 12 electrically connected to each other.
The second secondary battery cell group 200 includes two parallel connected second secondary battery cells 20 which each include a second positive ternñnal 21 and a second negative terminal 22 electrically connected to the first positive terminals 11. In this embodiment, the two second secondary battery cells 20 have their second positive terminals 21 electrically connected to each other, and have their second negative terminals 22 electrically connected to each other.
The third secondary battery cell group 300 includes two parallel connected third secondary battery cells 30 which each include a third positive terminal 3 I, and a third negative terminal 32 electrically connected to the second positive terminals 21. In this embodiment, the two third secondary battery cells 30 have their third positive terminals 3 1 electrically connected to each other, and l1ave their third negative terminals 32 electrically connected to each other The fourth secondary battery cell group 400 includes two parallel connected fourth secondary battery cells 40 which each include a fourth positive terminal 41, and a fourth negative tenninal 42 electrically connected to the third positive terminals 31. In this embodiment, the two fourth secondary battery cells 40 have their fourth positive terminals 41 electrically connected to each other, and have their fourth negative terminals 42 electrically connected to each other.
The first fuse group 51 includes two first fuses 511 which are electrically connected to the first negative terminals 12 of the first secondary battery cells 10.
The second fuse group 52 includes two second fuses 52! which are electrically connected to the second positive terminals 21 of the second secondary battery cells 20 and the third negative terminals 32 of the third secondary battery cells 30.
The third fuse group 53 includes two third fuses 53 1 which are electrically connected to the fourth negative terminals 41 of the fourth secondary battery cells 40.
When one of the first secondary battery cells 10 of the first secondary battery cell group! 00 fails, another one of the first secondary battery cells tO that doesn't fail can still work and output power since the two first secondary battery cells 10 of the first secondary battery cell group! 00 are connected in parallel.
Similarly, when one of the second secondary battery cells 20 of the second secondary battery cell group 200 fails, or one of the third secondary battery cells 30 of the third secondary battery cell group 300 fails, or one of the fourth secondary battery cells 40 of the fourth secondary battery cell group 400 fails, another one of the second, third, or fourth secondary battery cells 20, 30, 40 that doesn't fail can still work aiid output power With the special serial aiid parallel coiiiiection manner of the present invention, the respective battery cell groups can still work properly in the case that any sing!e battery cell is faulty.
Furthermore, the positive or negative terminal of each of the battery cells of the respective battery cell groups is connected to a fuse, namely, each of the secondary battery cells has a fuse. When any of the secondary battery cells fails and results in the current flowing through the ftise exceeding the rated value, the ftise electrically connected to the failed secondary battery cell will be blown to stop current from flowing, so that the failed secondary battery cell is isolated from the rest good secondary battery cells to improve safety of the battery pack.
Referring to Fig. 2, a secondary battery pack in accordance with a second embodiment of the present invention is similar to the first embodiment, except that: Each of the first secondary battery cells 10 is a rectangular block (namely, square secondary battery) and includes a rectangular first top surface 13 and a first positive terminal 11 and a first negative terminal 12 on the first top surface 13. The first top surface 13 includes two opposed first short sides 13 I and two opposed first long sides 132. Each of the first long sides 132 extends to form a first deformation surfaces 14, a perpendicular distance between the two first deformation surfaces 14 is defined as a first thickness 15, and the two first secondary battery cells 10 have their first short sides 13 1 abutted against each other.
Each of the second secondary battery cells 20 is a rectangular block (namely, square secondary battery) and includes a rectangular second top surface 23 and a second positive terminal 21 and a second negative terminal 22 on the second top surface 23. The second top surface 23 includes two opposed second short sides 231 and two opposed second long sides 232. Each of the second long sides 232 extends to form a second deformation surfaces 24, a perpendicular distance between the two second deformation surfaces 24 is defined as a second thickness 25 which equals the first thickness 15, and the two second secondary battery cells 20 have their second short sides 23 1 abutted against each other Each of the third secondary battery cells 30 is a rectangular block (namely, square secondary battery) and includes a rectangular third top surface 33 and a third positive terminal 31 and a third negative terminal 32 on the third top surthce 33. The third top surface 33 includes two opposed third short sides 331 and two opposed third long sides 332. Each of the third long sides 332 extends to forni a third deformation surfaces 34, a perpendicular distance between the two third deformation surfaces 34 is defined as a third thickness 35 which equals the second thickness 25, and the two third secondary battery cells 30 have their third short sides 331 abutted against each other.
Each of the fourth secondary battery cells 40 is a rectangular block (namely, square secondary battery) and includes a rectangular fourth top surface 43 and a fourth positive terminal 41 and a fourth negative terminal 42 on tile fourth top surface 43. The fourth top surface 43 includes two opposed fourth short sides 431 and two opposed fourth long sides 432. Each of the fourth long sides 432 extends to fonu a fourth deforniation surfaces 44, a perpendicular distance between the two fourth deformation surfaces 44 is defined as a fourth thickness 45 which equals the third thickness 35, and the two fourth secondary battery cells 40 have their fourth short sides 43 1 abutted against each othet The secondary battery pack in accordance with the second embodiment of the present invention farther comprises a housing 60 which is formed with a chamber 61 for holding the first secondary battery cell group 100, the second secondary battery cell group 200, the third secondary battery cell group 300, and the
S
fourth secondary battery cell group 400. A perpendicular distance between a first deformation surface 14 and a neighboring second deformation surface 24 is defined as a first safety interval 62 which is two fifths the first thickness 1 5, a perpendicular distance between a second deformation surface 24 and a neighboring third deformation surface 34 is defined as a second safety interval 63 wInch is equal to the first safety interval 62, and a perpendicular distance between a third deformation surface 34 and a neighboring fourth deformation surface 44 is defined as a third safety interval 64 which is equal to the second safety interval 63.
By such arrangements, the secondary battery cell groups are spaced at an interval equivalent to two fifths the thickness of the square battery cells, which prevents the rest good square secondary battery cells from being crushed or destroyed or damaged by battery inflation when two neighboring secondary square battery cells are faulty and inflate.
Referring to Fig. 3, a safety secondary battery pack in accordance with a third embodiment of the present invention comprises: a first secondary battery cell group 100, a second secondary battery cell group 200, a third secondary battery cell group 300, a fourth secondary battery cell group 400, a first fuse group 56, a second fuse group 57, a third fuse group 58, and a fourth fuse group 59.
the first secondary battery cell group 100, the second secondary battery cell group 200, the third secondary battery cell group 300, and the fourth secondary battery cell group 400 of this embodiment are the same as those of the first
embodiment, so ftu'ther description is omitted.
The first fttse group 56 includes two first ftises 561 which are electrically connected to the first negative tenninals 12 of the first secondary battery cells 10.
The second fttse group 57 includes two second fttses 57! which are electrically connected to the second positive terminals 2 I of the second secondary battery cells 20.
The third fttse group 58 includes two third fuses 581 which are electrically connected to the third negative terminals 32 of the third secondary battery cells 30.
The fourth fuse group 59 includes two fourth fuses 591 which are electrically connected to the fourth positive terminals 41 of the fourth secondary battery cells 40.
What mentioned above are the structural relations of the main components of the third embodiment, and the third embodiment has the same function as the first embodiment.
Referring to Fig. 4, a safety secondary battery pack in accordance with a fourth embodiment of the present invention comprises: a first secondary battery cell group 100, a second secondary battery cell group 200, a third secondary battery cell group 300, a fourth secondary battery cell group 400, a first fuse group 56, a second fuse group 57, a third fuse group 58, and a fourth fuse group 59. The fourth enibodiment is similar to the third embodiment except that: Each of the first secondary battery cells 10 is a rectangular block (namely, square secondary battery) and includes a rectangular first top surface 13 and a first positive terminal 11 and a first negative termina! 12 on the first top surface 13. The first top surface! 3 includes two opposed first short sides 13 I and two opposed first long sides 132. Each of the first long sides 132 extends to form a first deformation surfaces 14, a perpendicular distance between the two first deformation surfaces 14 is defined as a first thickness 15, and die two first secondary battery cells 10 have their first short sides 131 abutted against each other.
Each of the second secondary battery cells 20 is a rectangular block (namely, square secondary battery) and includes a rectangular second top surface 23 and a second positive tenninal 21 and a second negative terminal 22 on the second top surface 23. The second top surface 23 includes two opposed second short sides 231 and two opposed second long sides 232. Each of the second long sides 232 extends to form a second deformation surfaces 24, a perpendicular distance between the two second deformation surfaces 24 is defined as a second thickness 25 which equals the first thickness 15, and the two second secondary battery cells 20 have their second short sides 23 1 abutted against each otheii Each of the third secondary battery cells 30 is a rectangular block (namely, square secondary battery) and includes a rectangular third top surface 33 and a third positive terminal 31 and a third negative terminal 32 on the third top surthce 33. The third top surface 33 includes two opposed third short sides 331 and two opposed third long sides 332. Each of the third long sides 332 extends to fonn a third deformation surfaces 34, a perpendicular distance between the two third deformation surfaces 34 is defined as a third thickness 35 which equals the secoiid thickness 25, and the two third secondary battery cells 30 have their third short sides 331 abutted against each other.
Each of the fourth secondary battery cells 40 is a rectangular block (namely, square secondary battery) and includes a rectangular fourth top surface 43 and a fourth positive terminal 41 and a fourth negative terminal 42 on the fourth top surface 43. The fourth top surface 43 includes two opposed fourth short sides 431 and two opposed fourth long sides 432. Each of the fourth long sides 432 extends to form a fourth deformation surfaces 44, a perpendicular distance between the two fourth deformation surfaces 44 is defined as a fourth thickness 45 which equals tile third thickness 35, and the two fourth secondary battery cells 40 have their fourth short sides 43 1 abutted against each othet The secondary battery pack in accordance with the second embodiment of the present invention further comprises a housing 60 which is formed with a chamber 61 for holding the first secondary battery cell group 100, the second secondary battery cell group 200, the third secondary battery cell group 300, and the fourth secondary battery cell group 400. A perpendicular distance between a first deformation surface 14 and a neighboring second deformation surface 24 is defined as a first safety interval 62 which is two fifths the first thickness 1 5, a perpendicular distance between a second deformation surface 24 and a neighboring third deformation surface 34 is defined as a second safety interval 63 which is equal to the first safety interval 62, and a perpendicular distance between a third deformation surface 34 and a neighboring fourth deformation surface 44 is defined as a third safety interval 64 which is equal to the second safety interval 63.
The safety secondary battery pack of the fourth embodiment of the present invention has the same ftuiction as that of the second embodiment.
Referring to Fig. 5, a safety secondary battery pack in accordance with a fifth embodiment of the present invention comprises: two first secondary battery cell groups 100 and bOA, two second secondary battery cell groups 200 and 200A, two third secondary battery cell groups 300 and 300A, two fourth secondary battery cell groups 400 and 400A, two first fttse groups 56 and 56A, two second fuse groups 57 and 57A, two third fuse groups 58 and 58A, and two fourth fuse groups 59 and 59A.
The battery cell groups and fuse groups of the safety secondary battery pack of tile fifth embodiment are arranged hi the same manner as the third embodiment.
Referring to Fig. 6, a safety secondary battery pack in accordance with a sixth embodiment of the present invention comprises: three first secondary battery cell groups 100, IOOA, and IOOB, three second secondary battery cell groups 200, 200B and 200A, three third secondary battery cell groups 300, 300B and 300A, three fourth secondary battery cell groups 400, 400B and 400A, three first fuse groups 56, 56B and 56A, three second fuse groups 57, 57B and 57A, three third fuse groups 58, 58B and 58A, and three fourth fuse groups 59, 59B and 59A. The battery cell groups and fuse groups of the safety secondary battery pack of the sixth embodiment are arranged in the same manner as the third embodiment.
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (5)
- WHAT IS CLAIMED 15: 1. A secondary battery pack comprising: a first secondary battery cell group including two parallel connected secondary battery cells which each include a first positive terminal and a first negative terminal; a second secondary battery cell group including two parallel connected second secondary battery cells which each include a second positive terminal and a second negative terminal electrically connected to the first positive tenninals; a third secondary battery cell group including two parallel connected third secondary battery cells which each include a third positive terminal, and a third negative terminal electrically connected to the second positive terminals; a fourth secondary battery cell group including two parallel connected fourth secondary battery cells which each include a fourth positive terminal, and a fourth negative terniinal electrically connected to the third positive terminals; a first fise group including two first fuses which are electrically connected to the first negative terminals of the first secondary battery cells; a second fuse group including two second fuses which are electrically connected to the second positive terminals of the second secondary battery cells and the third negative terminals of the third secondary battery cells; and a third fuse group including two third fuses which are electrically connected to the fourth negative terminals of the fourth secondary battery cells.
- 2. The secondary battery pack as claimed in claim 1, wherein each of the first secondary battery cells is a rectangular block which includes a rectangular first top surface and a first positive tenninal and a first negative terminal on the first top surface, the first top surface includes two opposed first short sides and two opposed first long sides, each of tile first long sides extends to form a first deformation surfaces, a perpendicular distance between the two first deformation surfaces is defined as a first thickness, and the two first secondary battery cells have their first short sides abutted against each other; each of the second secondary battery cells is a rectangular block which includes a rectangular second top surface and a second positive terminal and a first negative terminal on the second top surface, the second top surface includes two opposed second short sides and two opposed second long sides, each of the second long sides extends to form a second deformation surfaces, a perpendicular distance between the two second deformation surfaces is defined as a second thickness which equals the first thickness, and the two second secondary battery cells have their second short sides abutted against each other; each of the third secondary battery cells is a rectangular block which includes a rectangular third top surface and a third positive terminal and a third negative terminal on the third top surface, the third top surface includes two opposed third short sides and two opposed third long sides, each of the third long sides extends to form a third deformation surfaces, a perpendicular distance between the two third deformation surfaces is defined as a third thickness which equals the second thickness, and the two third secondary battery cells have their third short sides abutted against each other; each of the fourth secondary battery cells is a rectangular block which includes a rectangular fourth top surface and a fourth positive terminal and a fourth negative terminal on the fourth top surface, the fourth top surface includes two opposed fourth short sides and two opposed fourth long sides, each of the fourth long sides extends to form a fourth deformation surtitces. a perpendicular distance between the two fourth deformation surfaces is defined as a fourth thickness which equals the third thickness, and the two fourth secondary battery cells have their fourth short sides abutted against each other; the secondary battery pack further comprises a housing which is formed with a chamber for holding the first secondary battery cell group, the second secondary battery cell group, the third secondary battery cell group, and the fourth secondary battery cell group, a perpendicular distance between a first deformation surface and a neighboring second deformation surface is defined as a first safety interval which is two fifths the first thickness, a perpendicular distance between a second deformation surface and a neighboring third deformation surface is defined as a second safety interval which is equal to the first safety interval, and a perpendicular distance between a third deformation surface and a neighboring fourth deformation surface is defined as a third safety interval which is equal to the second safety interval.
- 3. A secondary battery pack comprising: at least one first secondary battery cell group including two parallel connected secondary battery cells which each include a first positive terminal and a first negative terminal; at least one second secondary battery cell group including two parallel connected second secondary battery cells which each include a second positive terminal and a second negative terminal electrically connected to the first positive terminals; at least one third secondary battery cell group including two parallel connected third secondary battery cells which each include a third positive terminal, and a third negative terminal electrically connected to the second positive terminals; at least one fourth secondary battery cell group including two parallel connected fourth secondary battery cells which each include a fourth positive terminal, and a fourth negative terminal electrically connected to the third positive terminals; at least one first fuse group including two first fuses which are electrically connected to the first negative terminals of the first secondary battery cells; at least one second fuse group including two second fuses which are electrically connected to the second positive terminals of the second secondary battery cells; at least one third fuse group including two third fuses which are electrically connected to the third negative ternñnals of the third secondary battery cells; and at least one fourth fuse group including two fourth fuses which are electrically connected to the fourth positive terminals of the fourth secondary battery cells.
- 4. The secondary battery pack as claimed in claim 3, wherein each of the first secondary battery cells is a rectangular block which includes a rectangular first top surface and a first positive terminal and a first negative terminal on the first top surface, the first top surface includes two opposed first short sides and two opposed first long sides, each of the first long sides extends to form a first deformation surfaces, a perpendicular distance between tile two first deformation surfaces is defined as a first thickness, and the two first secondary battery cells have their first short sides abutted against each other; each of the second secondary battery cells is a rectangular block which includes a rectangular second top surface and a second positive terminal and a first negative terminal on the second top surface, the second top surface includes two opposed second short sides and two opposed second long sides, each of the second long sides extends to form a second deformation surfaces, a perpendicular distance between the two second deformation surfaces is defined as a second thickness which equals the first thickness, and the two second secondary battery cells have their second short sides abutted against each other; each of the third secondary battery cells is a rectangular block which includes a rectangular third top surface and a third positive terminal and a third negative terminal on the third top surface, the third top surface includes two opposed third short sides and two opposed third long sides, each of the third long sides extends to fonn a third deformation surfaces, a perpendicular distance between the two third deformation surfaces is defined as a third thickness which equals the second thickness, and the two third secondary battery cells have their third short sides abutted against each other; each of the fourth secondary battery cells is a rectangular block which includes a rectangular fourth top surface and a fourth positive terminal and a fourth negative terminal on the fourth top suthce, the fourth top surface includes two opposed fourth short sides and two opposed fourth long sides, each of the fburth long sides extends to form a fourth deformation surfaces, a perpendicular distance between the two fourth deformation surfaces is defined as a fourth thickness which equals the third thickness, and the two fourth secondary battery cells have their fourth short sides abutted against each otheç the secondary battery pack further comprises a housing which is formed with a chamber for holding the first secondary battery cell group, the second secondary battery cell group, the third secondary battery cell group, and the fourth secondary battery cell group, a perpendicular distance between a first defbrmation surfhce and a neighboring second deformation surthce is defined as a first safety interval which is two fifths the first thickness, a perpendicular distance between a second deformation surface and a neighboring third deformation surface is defined as a second safety interval which is equal to the first safety interval, and a perpendicular distance between a third deformation surface and a neighboring fourth deformation surfice is defined as a third safety interval which is equal to the second safety interval.
- 5. A secondary battery pack substantially as hereinbefore described with rekrence to and as shown in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1212799.9A GB2504116A (en) | 2012-07-19 | 2012-07-19 | Secondary Battery Pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1212799.9A GB2504116A (en) | 2012-07-19 | 2012-07-19 | Secondary Battery Pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201212799D0 GB201212799D0 (en) | 2012-09-05 |
| GB2504116A true GB2504116A (en) | 2014-01-22 |
Family
ID=46881611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1212799.9A Withdrawn GB2504116A (en) | 2012-07-19 | 2012-07-19 | Secondary Battery Pack |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2504116A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6099986A (en) * | 1997-07-25 | 2000-08-08 | 3M Innovative Properties Company | In-situ short circuit protection system and method for high-energy electrochemical cells |
| GB2481584A (en) * | 2010-06-28 | 2012-01-04 | Energy Control Ltd | Safety power supply device for a battery assembly |
| GB2482324A (en) * | 2010-07-30 | 2012-02-01 | Energy Control Ltd | Battery assembly formed by plural soft packing secondary batteries. |
| WO2012014350A1 (en) * | 2010-07-29 | 2012-02-02 | パナソニック株式会社 | Battery module |
| US20120030932A1 (en) * | 2010-08-04 | 2012-02-09 | Tesla Motors, Inc. | Method of Controlled Cell-Level Fusing Within a Battery Pack |
-
2012
- 2012-07-19 GB GB1212799.9A patent/GB2504116A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6099986A (en) * | 1997-07-25 | 2000-08-08 | 3M Innovative Properties Company | In-situ short circuit protection system and method for high-energy electrochemical cells |
| GB2481584A (en) * | 2010-06-28 | 2012-01-04 | Energy Control Ltd | Safety power supply device for a battery assembly |
| WO2012014350A1 (en) * | 2010-07-29 | 2012-02-02 | パナソニック株式会社 | Battery module |
| GB2482324A (en) * | 2010-07-30 | 2012-02-01 | Energy Control Ltd | Battery assembly formed by plural soft packing secondary batteries. |
| US20120030932A1 (en) * | 2010-08-04 | 2012-02-09 | Tesla Motors, Inc. | Method of Controlled Cell-Level Fusing Within a Battery Pack |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201212799D0 (en) | 2012-09-05 |
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