CN201514982U - Lithium battery pack - Google Patents
Lithium battery pack Download PDFInfo
- Publication number
- CN201514982U CN201514982U CN2009202102803U CN200920210280U CN201514982U CN 201514982 U CN201514982 U CN 201514982U CN 2009202102803 U CN2009202102803 U CN 2009202102803U CN 200920210280 U CN200920210280 U CN 200920210280U CN 201514982 U CN201514982 U CN 201514982U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- lithium battery
- diode
- series
- fuse tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 57
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 230000001681 protective effect Effects 0.000 claims description 28
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a battery, in particular to a lithium battery pack, which comprises a battery pack formed by at least two single lithium batteries connected with each other in series. A diode is connected with the anode of the battery pack in series. At least one fuse tube is connected with the cathode of the battery pack in series. Heat-shrinkable tubes are respectively arranged outside the diode and the fuse tube and can seal the diode, the fuse tube and the battery pack together to form the lithium battery pack. Since the structure is adopted, the characteristics of the diode can ensure that the lithium battery pack can discharge but cannot be charged, so the safety of the lithium battery pack is ensured; the fuse tube can ensure that the fuse in the fuse tube can be burned out to protect the circuit when short circuit occurs, so dangers such as explosion are ensured not to occur in the lithium battery pack; and since the heat-shrinkable tubes are arranged outside the diode and the fuse tube, the high-temperature resistance of the lithium battery pack is effectively improved. Thereby, the utility model has the advantages of stable performance, high safety and reliability, simple structure and easy popularization and application.
Description
[technical field]
The utility model relates to a kind of battery, particularly a kind of lithium battery group.
[background technology]
Lithium battery has operating voltage height, specific energy height, specific power height, characteristics such as self-discharge rate is low, the Applicable temperature scope wide, long service life, so lithium battery is widely used in each field.Lithium battery is a kind of relatively battery of safety, and inner elemental lithium exists with ionic condition, can guarantee safety under normal condition.But lithium battery is owing to use the lower lithium metal (about 180 ℃) of fusing point, the energy density height of lithium battery, sometimes also be difficult to guarantee the fail safe of battery, under abuse states such as lithium cell charging or over-discharge can, can damage battery, can cause serious consequences such as the on fire or blast of battery when serious, thereby influence the scope of application of lithium battery.When short circuit or over-discharge can, the back energy is surplus because battery temperature rises, so electrolyte decomposition and produce gas, because of in press and rise danger on fire or blast, when over-discharge can, because of the battery reversed polarity, electrolyte decomposition causes battery behavior and durability deterioration.Those skilled in the art generally will consider when measures such as adopting weak link, diaphragm seals prevents the battery abuse when the design lithium battery, and security incident takes place, but adopts aforesaid way still to have the not ideal and more high defective of production cost of security protection effect.
Therefore, be necessary to invent a kind of novel lithium battery group, to overcome above-mentioned defective.
[utility model content]
The purpose of this utility model provides a kind of stable performance and safe and reliable lithium battery group.
For achieving the above object, the technical solution of the utility model is: a kind of lithium battery group, comprise the battery pack that at least two single lithium battery of mutual series connection constitute, be in series with a diode, be in series with at least one protective tube at the negative pole of described battery pack at the positive pole of described battery pack; Be respectively equipped with outside protective tube at described diode and diode, protective tube to be enclosed in described battery pack and to form the heat-shrink tube of described lithium battery group.
The negative pole of the battery pack that at least two single lithium battery of wherein said mutual series connection constitute is in series with two identical protective tubes.
Because adopt said structure, the lithium battery group of the utility model has following beneficial effect:
1. stable performance, safe and reliable
The lithium battery group of the utility model is owing to the anodal series diode of the battery pack that constitutes at least two single lithium battery of connecting mutually; the negative pole of battery pack is in series with at least one protective tube; neither influence the normal use of lithium battery group; simultaneously; the characteristic of diode guarantees that the lithium battery group can discharge; but can not be recharged the safety that guarantees the lithium battery group; protective tube can guarantee that the fuse in the fusing protective tube is with protective circuit when circuit is short-circuited; it is dangerous to guarantee that the lithium battery group can not blasted etc.; outside diode and protective tube, be provided with heat-shrink tube; can effectively improve the high temperature resistant property of lithium battery group; simultaneously, heat-shrink tube can with lead that diode or protective tube are connected in bare wire metal junction protect and prevent to leak electricity and external abominable operational environment can not have influence on the normal use of lithium battery group.Make the lithium battery group performance of the utility model more stable.
2. simple in structure, be easy to apply
The lithium battery group of the utility model is because the anodal series diode of the battery pack that constitutes at least two single lithium battery of mutually series connection only, the negative pole of battery pack is in series with at least one protective tube, and outside diode and protective tube the installing in order to the insulation heat-shrink tube, overall structure is simple, cost is also lower, therefore is easy to apply.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the utility model lithium battery group;
Fig. 2 is the schematic diagram of the utility model lithium battery structure.
[embodiment]
Below in conjunction with drawings and Examples the utility model lithium battery group is further described.
Please refer to shown in Fig. 1,2, the utility model lithium battery group comprises the battery pack that at least two single lithium battery 1 of mutual series connection constitute, connect mutually by six single lithium battery 1 altogether in the present embodiment and constitute described battery pack, certainly the quantity of single lithium battery can increase and decrease according to actual needs, positive pole in described battery pack is in series with a diode 2, diode 2 is connected the anodal of battery pack and then is connected with lead 3, is provided with the heat-shrink tube 4 in order to insulation in diode 2 outsides.The characteristic of diode guarantees that the lithium battery group can discharge, but can not be recharged and guarantee the safety of lithium battery group, prevents that current reflux from setting off an explosion.And be in series with at least one protective tube 6 at the negative pole of described battery pack, the negative pole of battery pack is in series with two an identical protective tube 6 in the present embodiment, connected mode is the negative pole that is connected battery pack after two protective tubes are connected in series, and is provided with the heat-shrink tube 5 in order to insulation again two protective tube 6 outsides.In case the blown fuse when protective tube can guarantee that circuit is short-circuited in the protective tube is with protective circuit; guaranteeing that the lithium battery group can not blasted waits danger; two purpose is to have a protective tube malfunctioning if connect, and an other protective tube still can play a protective role.Respectively diode, protective tube are enclosed in battery pack at the heat-shrink tube of diode outside protective tube and form the utility model lithium battery group.Heat-shrink tube can protect the bare wire metal junction in the lead and prevent to leak electricity and external abominable operational environment can not have influence on the normal use of lithium battery group.Heat-shrink tube can effectively improve the high temperature resistant property of lithium battery group.The utility model lithium battery group working limit temperature is between-50～+ 175 ℃, and the scope of application is very extensive.
Claims (2)
1. lithium battery group comprises the battery pack that at least two single lithium battery of mutual series connection constitute, and it is characterized in that, is in series with a diode at the positive pole of described battery pack, is in series with at least one protective tube at the negative pole of described battery pack; Be respectively equipped with outside protective tube at described diode and diode, protective tube to be enclosed in described battery pack and to form the heat-shrink tube of described lithium battery group.
2. lithium battery group as claimed in claim 1 is characterized in that: the negative pole of the battery pack that at least two single lithium battery of described mutual series connection constitute is in series with two identical protective tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202102803U CN201514982U (en) | 2009-09-28 | 2009-09-28 | Lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202102803U CN201514982U (en) | 2009-09-28 | 2009-09-28 | Lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514982U true CN201514982U (en) | 2010-06-23 |
Family
ID=42486393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202102803U Expired - Fee Related CN201514982U (en) | 2009-09-28 | 2009-09-28 | Lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490033A (en) * | 2012-06-11 | 2014-01-01 | 湖南常德牌水表制造有限公司 | Safety battery with blown fuse |
-
2009
- 2009-09-28 CN CN2009202102803U patent/CN201514982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490033A (en) * | 2012-06-11 | 2014-01-01 | 湖南常德牌水表制造有限公司 | Safety battery with blown fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20110928 |