CN102368623A - Uninterruptible power supply (UPS) - Google Patents
Uninterruptible power supply (UPS) Download PDFInfo
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- CN102368623A CN102368623A CN2011102888165A CN201110288816A CN102368623A CN 102368623 A CN102368623 A CN 102368623A CN 2011102888165 A CN2011102888165 A CN 2011102888165A CN 201110288816 A CN201110288816 A CN 201110288816A CN 102368623 A CN102368623 A CN 102368623A
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- lithium ion
- lithium
- ion battery
- power supply
- uninterrupted power
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Abstract
The invention discloses an uninterruptible power supply (UPS) which comprises: a lithium ion battery pack, a control circuit and a communication part. The lithium ion battery pack and the communication part are respectively electrically connected with the control circuit, wherein a lithium ion battery monomer in the lithium ion battery pack is a 18650 lithium ion battery or a 26650 lithium ion battery. In the UPS, the lithium ion battery pack is used as a storage battery so that a service life of the UPS can be effectively prolonged, economy costs can be reduced and safety and environmental protection can be achieved. In the current UPS, a lead acid battery is taken as the storage battery so that there are disadvantages, such as short service life and large environmental pollution. By using the UPS of the invention, the above disadvantages can be overcome.
Description
Technical field
The present invention relates to a kind of uninterrupted power supply.
Background technology
Uninterrupted power supply (Uninterruptible Power Supply; UPS) be a kind of energy storage device that contains; With the inverter is the uninterrupted power supply of the constant voltage constant frequency of chief component, is mainly used in continual supply of electric power to single computer, computer network system or other power electronic equipment is provided.
Uninterrupted power supply typically has the input that is used for AC power, rectification and booster circuit, converter and battery.Uninterrupted power supply can also can offer load with the electric energy from battery selectively with offering load from the electric energy that exchanges power supply.When battery had not been used as load electric energy is provided, battery can be recharged through the electric energy from AC power.AC power possibly be single-phase or three-phase, and uninterrupted power supply is present in and is configured in order to control AC power a kind of or other type.If input line voltage surpasses the voltage range that allows, uninterrupted power supply typically is configured in order to be transformed into battery.
Battery is core component and the key point of UPS; What UPS generally used now is lead-acid battery; Since the secondary pollution that the recovery of lead contamination and refuse battery causes, and the useful life of lead-acid battery is short, and the replacing of ups system battery is more frequent; Cause more and more countries that the use of lead-acid battery is all limited, Europe and Russia have all had legislation after 2010, progressively on UPS, to eliminate lead-acid battery.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, provide that a kind of long service life, cost are low, the uninterrupted power supply of safety, environmental protection.
In order to realize the foregoing invention purpose, the technical scheme of the embodiment of the invention is following:
A kind of uninterrupted power supply; Comprise lithium ion battery group, control circuit and communication component; Said lithium ion battery group, communication component electrically connect with control circuit respectively, and wherein, lithium-ion battery monomer is 18650 lithium ion batteries or 26650 lithium ion batteries in the lithium ion battery group.
Above-mentioned uninterrupted power supply adopts the lithium ion battery group as storage battery, has effectively improved the useful life of this uninterrupted power supply, has reduced operating cost, safety, environmental protection.Effectively having overcome existing is that the uninterrupted power supply of storage battery is existing as the life-span short, change frequently deficiency big for environment pollution with the lead-acid battery.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention uninterrupted power supply;
Fig. 2 is the structural representation of anchor clamps.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides the uninterrupted power supply of a kind of long service life, economy, safety, environmental protection.This uninterrupted power supply structure such as Fig. 1, shown in Figure 2, it comprises lithium ion battery group 1, control circuit and communication component (not shown), this lithium ion battery group 1, communication component electrically connect with control circuit respectively.Wherein, lithium-ion battery monomer 11 is 18650 lithium ion batteries or 26650 lithium ion batteries in the lithium ion battery group 1.Like this; This uninterrupted power supply adopts lithium ion battery group 1 as storage battery, has effectively improved the useful life of this uninterrupted power supply, has reduced operating cost; Safety; Environmental protection, effectively having overcome existing is that the uninterrupted power supply of storage battery is existing as the life-span short, change frequently deficiency big for environment pollution with the lead-acid battery.Learn according to inventor's test analysis; The lithium ion battery energy density is 3 times of plumbic acid, and good cycle, and be 4 times of lead-acid battery useful life; The battery cost is more cheap than lead-acid battery according to useful life and energy density conversion, has extraordinary economic benefit and social benefit.Wherein, adopt 18650 lithium ion batteries or 26650 lithium ion batteries to set up into lithium ion battery group 1, make uninterrupted power supply have high energy density height and output voltage.
Preferably; Above-mentioned control circuit discharges and recharges pressure-controlled between 3.1V～4.1V with 18650 lithium ion batteries or 26650 lithium ion batteries; For example, when the positive electrode of 18650 lithium ion batteries or 26650 lithium ion batteries was LiFePO 4, its voltage preferably was controlled at 2.5～3.65V.Characteristic according to the embodiment of the invention 18650 lithium ion batteries or 26650 lithium-ion battery monomers; This preferably discharges and recharges pressure energy makes lithium-ion battery monomer 11 cycle performances excellent more; The expansion of electrode is littler, has effectively prolonged embodiment of the invention uninterrupted power supply cycle life, preferably charges and discharge in the voltage range through being determined at this; 18650 lithium ion batteries or 26650 lithium-ion battery monomer cycle lives reach more than 2000 times, satisfy the long instructions for use of UPS fully.
Preferably, the IC device of embodiment of the invention uninterrupted power supply through above-mentioned control circuit is controlled at the state-of-charge of lithium ion battery group 1 more than 85%.Like this; Can guarantee that battery cell 11 voltages begin charging when being lower than 3.8V, 4.1V ends, when battery cell 11 is ferrous phosphate lithium battery; Can guarantee that ferrous phosphate lithium battery monomer 11 voltages begin charging when being lower than 3.35V; 3.65V end, can make lithium ion battery group 1 remain on the state-of-charge more than 85% for a long time like this, realize the float charging function of similar lead-acid battery with this.
Preferably, the positive active material of above-mentioned 18650 lithium ion batteries or 26650 lithium ion batteries is LiCo
xNi
yAl
zO
2With the mixture of LiMn2O4, or LiCo
xNi
yMn
zO
2Ternary material or LiFePO 4, wherein, x+y+z=1.Negative material is a kind of in Delanium, the hard carbon material; It perhaps is the mixture of Delanium and silicon-carbon Si-C, tin carbon Sn-C, Graphene; When negative material is the mixture of Delanium and silicon-carbon (Si-C), tin carbon (Sn-C), Graphene, the mixture three's of Delanium and silicon-carbon (Si-C), tin carbon (Sn-C), Graphene mass ratio is preferably 8: 2～5: 5 ratio.Electrolyte comprises hexafluorophosphoric acid lithium electrolyte and polynary organic solvent; Wherein, The concentration of electrolyte lithium hexafluoro phosphate is preferably 1.0～1.5mol/L; Polynary organic solvent is preferably two or three mixture in fluorinated ethylene carbonate, dimethyl carbonate, methyl ethyl carbonate, the divinyl carbonate, and each component ratio does not have special demands in the polynary organic solvent of this mixture.This preferred positive active material, negative material and electrolyte make 18650 lithium ion batteries or 26650 lithium ion battery cycle lives longer, and energy density is higher.
Further preferably, the electrolyte of above-mentioned 18650 lithium ion batteries or 26650 lithium ion batteries also comprises 1～3% vinylene carbonate (VC), 0.5～2% fluorobenzene methyl ether.The VC of this content plays good film-formation result at 18650 lithium ion batteries or the 26650 lithium ion battery initial stages of changing into, and lets the cycle performance of battery improve, and the fluorobenzene methyl ether can let the fail safe of battery be improved.
Further preferably, embodiment of the invention uninterrupted power supply also comprises the anchor clamps 2 that are used for fixing lithium-ion battery monomer 11, and the structure of these anchor clamps 2 is as shown in Figure 2.These anchor clamps 2 are provided with the some through holes 21 that are complementary with lithium-ion battery monomer 11 shapes, and lithium-ion battery monomer 11 wears through hole 21, make end that anchor clamps 2 are set in lithium-ion battery monomer 11 or/and the middle part.This through hole 21 is complementary with lithium-ion battery monomer 11 shapes; When anchor clamps 2 are set in lithium-ion battery monomer 11 ends or/and during the middle part; The lithium-ion battery monomer 11 that is located in the through hole 21 can be fixed, and makes that embodiment of the invention uninterrupted power supply structure is more firm, safety.Certainly, for the marshalling that guarantees lithium-ion battery monomer 11 and the spacing one that keeps adjacent lithium-ion battery monomer 11 straightforward, the axis preferred parallel of through hole 21.
Concrete, the spacing of above-mentioned adjacent lithium-ion battery monomer 11 is preferably 1～3mm.The heat that this preferred spacing can make lithium-ion battery monomer 11 in charging and discharging process, produced in time looses and removes; Make embodiment of the invention uninterrupted power supply keep a relatively stationary temperature in the course of the work, thereby guaranteed the operating efficiency and the useful life of embodiment of the invention uninterrupted power supply.
In addition; Embodiment of the invention uninterrupted power supply also comprises cabinet (being demonstration among the figure); This cabinet be preferably 19 inches wide, 1～4U (cabinet that 4.445cm～17.78cm) is high, be convenient to general, according to degree of depth different mining with different 18650 or 26650 arrangement mode combination.Lithium ion battery group 1 adopts 11 series connection of 4 to 15 lithium-ion battery monomers to realize 12V～needed voltage of 48V uninterrupted power supply according to the actual working voltage of uninterrupted power supply and the requirement of capacity.According to the uninterrupted power supply capacity requirement, can use multi-parallel to make up and realize, and control circuit controlled through the protection chip in the control circuit that electrically connects with lithium ion battery group 1, guarantee lithium ion battery group 1 do not overcharge, cross put, excess temperature.
Existing is example with concrete uninterrupted power supply, and the present invention is further elaborated.
Embodiment 1
A kind of uninterrupted power supply (36V, 10Ah battery pack), its structure is as shown in Figure 1, simultaneously referring to Fig. 2.This uninterrupted power supply comprises lithium ion battery group 1, control circuit, communication component, cabinet and 3 anchor clamps 2 (being demonstration among Fig. 1); Lithium ion battery group 1, communication component electrically connect with control circuit respectively, and lithium ion battery group 1, control circuit, communication component all are arranged in the cabinet.Wherein, lithium ion battery group 1 is parallelly connected by 5 18650 batteries, and then uses forming of 10 groups of series connection, and lithium-ion battery monomer 11 is 18650 lithium ion batteries; Anchor clamps 2 are provided with 10 through holes 21 that are complementary with lithium-ion battery monomer 11 shapes; 10 lithium-ion battery monomers 11 wear this through hole 21; Make 3 anchor clamps 2 be set in the both ends and the middle part of lithium-ion battery monomer 11 respectively; Lithium-ion battery monomer 11 is fixing, and make that the spacing of adjacent lithium-ion battery monomer 11 is 2mm; The specification of cabinet is 19 inches wide, 1U is high; Control circuit is controlled at 41V with the charging voltage of lithium ion battery group, and discharge voltage was controlled at 31V when external circuit had a power failure, and the IC device of float charge voltage control circuit is controlled at 85% with the state-of-charge of lithium ion battery group 1 at ordinary times.
The positive active material of above-mentioned 18650 lithium ion batteries is LiCo
0.2Ni
0.5Mn
0.3O
2Ternary material; Negative material is a Delanium, and electrolyte comprises hexafluorophosphoric acid lithium electrolyte, polynary organic solvent and additive, wherein; The concentration of electrolyte lithium hexafluoro phosphate is 1.0mol/L; Polynary organic solvent is 2: 1 fluorinated ethylene carbonate of volume ratio, two kinds of mixtures of dimethyl carbonate, and additive is 2% vinylene carbonate, 1% fluorobenzene methyl ether.
A kind of uninterrupted power supply; Its structure and embodiment are similar; Battery pack is 48V, 10Ah, and present embodiment 2 is that with the difference of embodiment 1 lithium ion battery group 1 is by 5 18650 battery parallel connections earlier; 13 5 unit also are in series again then, and lithium-ion battery monomer 11 is 18650 lithium ion batteries; Anchor clamps 2 are provided with the through hole 21 that is complementary with lithium-ion battery monomer 11 shapes; 65 lithium-ion battery monomers 11 wear this through hole 21; Make 2 anchor clamps 2 be set in the both ends of lithium-ion battery monomer 11 respectively; Lithium-ion battery monomer 11 is fixing, and make that the spacing of adjacent lithium-ion battery monomer 11 is 3mm; The specification of cabinet is 19 inches wide, 2U is high; Control circuit discharges and recharges pressure-controlled below 53.3V with the lithium ion battery group, and the IC device of control circuit is controlled at 89% with the state-of-charge of lithium ion battery group 1.
The positive active material of above-mentioned 18650 lithium ion batteries is LiCo
0.2Ni
0.75Al
0.05O
2Mixture with LiMn2O4; Negative material is a hard carbon material, and electrolyte comprises hexafluorophosphoric acid lithium electrolyte, polynary organic solvent and additive, wherein; The concentration of electrolyte lithium hexafluoro phosphate is 1.3mol/L; Polynary organic solvent is 1: 2: 1 dimethyl carbonate of volume ratio, methyl ethyl carbonate, three kinds of mixtures of divinyl carbonate, and additive is 1.5% vinylene carbonate, 1.5% fluorobenzene methyl ether.
Embodiment 3
A kind of uninterrupted power supply, its structure and embodiment are similar, and battery pack is 48V, 50Ah.Present embodiment 2 is with the difference of embodiment 1; Lithium ion battery group 1 is by 17 26650 ferrous phosphate lithium battery parallel connections; 15 so parallelly connected unit are in series again then, and whole battery group is totally 255 26650 lithium-ion battery monomers, and 11 is 26650 lithium ion batteries; Anchor clamps 2 are provided with the through hole 21 that is complementary with lithium-ion battery monomer 11 shapes; 26650 lithium-ion battery monomers 11 wear this through hole 21; Make 2 anchor clamps 2 be set in the both ends of lithium-ion battery monomer 11 respectively; Lithium-ion battery monomer 11 is fixing, and make that the spacing of adjacent lithium-ion battery monomer 11 is 2mm; The specification of cabinet is 19 inches wide, 3U is high; Control circuit discharges and recharges pressure-controlled at 37.5V-54.8V with 26650 lithium ion batteries, and the IC device of control circuit is controlled at 90% with the state-of-charge of lithium ion battery group 1.
The positive active material of above-mentioned 26650 lithium ion batteries is a LiFePO 4; Negative material is Delanium and 1: 1 the silicon-carbon Si-C of mass ratio and the mixture of Graphene; Electrolyte comprises hexafluorophosphoric acid lithium electrolyte and polynary organic solvent; Wherein, the concentration of electrolyte lithium hexafluoro phosphate is 1.5mol/L, and polynary organic solvent is 1: 1 dimethyl carbonate of volume ratio and methyl ethyl carbonate ester admixture.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. uninterrupted power supply; Comprise lithium ion battery group, control circuit and communication component; Said lithium ion battery group, communication component electrically connect with control circuit respectively, and wherein, lithium-ion battery monomer is 18650 lithium ion batteries or 26650 lithium ion batteries in the lithium ion battery group.
2. uninterrupted power supply as claimed in claim 1 is characterized in that, said control circuit discharges and recharges pressure-controlled between 3.1V～4.1V with 18650 lithium ion batteries or 26650 lithium ion batteries.
3. uninterrupted power supply as claimed in claim 1 is characterized in that, the IC device of said control circuit is controlled at the state-of-charge of said lithium ion battery group more than 85%.
4. uninterrupted power supply as claimed in claim 1; It is characterized in that; Also comprise the anchor clamps that are used for fixing said lithium-ion battery monomer; Said anchor clamps are provided with the some through holes that are complementary with said lithium-ion battery monomer shape, and said lithium-ion battery monomer wears said through hole, make end that said anchor clamps are set in said lithium-ion battery monomer or/and the middle part.
5. like claim 1 or 4 described uninterrupted power supplys, it is characterized in that the spacing of adjacent said lithium-ion battery monomer is 1～3mm.
6. uninterrupted power supply as claimed in claim 1 is characterized in that, the positive active material of said 18650 lithium ion batteries or 26650 lithium ion batteries is LiCo
xNi
yAl
zO
2Mixture, LiCo with LiMn2O4
xNi
yMn
zO
2Ternary material or LiFePO 4, wherein, x+y+z=1.
7. uninterrupted power supply as claimed in claim 1 is characterized in that, the positive active material of said 18650 lithium ion batteries or 26650 lithium ion batteries is a LiFePO 4, and said 18650 lithium ion batteries or 26650 lithium ion battery voltages are 2.5V～3.65V.
8. uninterrupted power supply as claimed in claim 1; It is characterized in that; The negative material of said 18650 lithium ion batteries or 26650 lithium ion batteries is a kind of in Delanium, the hard carbon material, perhaps is the mixture of Delanium and silicon-carbon, tin carbon, Graphene.
9. uninterrupted power supply as claimed in claim 1; It is characterized in that; The electrolyte of said 18650 lithium ion batteries or 26650 lithium ion batteries comprises hexafluorophosphoric acid lithium electrolyte and polynary organic solvent; The concentration of said electrolyte lithium hexafluoro phosphate is 1.0～1.5mol/L, and said polynary organic solvent is two or three mixture in fluorinated ethylene carbonate, dimethyl carbonate, methyl ethyl carbonate, the divinyl carbonate.
10. uninterrupted power supply as claimed in claim 9 is characterized in that, said electrolyte also comprises the vinylene carbonate of 1～3wt% and the fluorobenzene methyl ether of 0.5～2wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102888165A CN102368623A (en) | 2011-09-26 | 2011-09-26 | Uninterruptible power supply (UPS) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102888165A CN102368623A (en) | 2011-09-26 | 2011-09-26 | Uninterruptible power supply (UPS) |
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| Publication Number | Publication Date |
|---|---|
| CN102368623A true CN102368623A (en) | 2012-03-07 |
Family
ID=45761177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102888165A Pending CN102368623A (en) | 2011-09-26 | 2011-09-26 | Uninterruptible power supply (UPS) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895970A (en) * | 2015-01-07 | 2016-08-24 | 广西南宁百兰斯科技开发有限公司 | High-energy and environmental-friendly nickel-zinc storage battery |
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| US20020153865A1 (en) * | 2001-04-19 | 2002-10-24 | Nelson James E. | Uninterruptible power supply system having an NiMH or Li-ion battery |
| CN101043147A (en) * | 2006-03-20 | 2007-09-26 | 日立麦克赛尔株式会社 | Electric source system and sensor system having same |
| CN101803144A (en) * | 2007-09-18 | 2010-08-11 | 松下电器产业株式会社 | Power supply system |
| CN201584443U (en) * | 2009-12-17 | 2010-09-15 | 深圳市创明电池技术有限公司 | Mold for adjusting temperature of lithium ion battery group |
| CN102044661A (en) * | 2009-10-23 | 2011-05-04 | 比克国际(天津)有限公司 | Method for preparing lithium ion battery slurry |
-
2011
- 2011-09-26 CN CN2011102888165A patent/CN102368623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153865A1 (en) * | 2001-04-19 | 2002-10-24 | Nelson James E. | Uninterruptible power supply system having an NiMH or Li-ion battery |
| CN101043147A (en) * | 2006-03-20 | 2007-09-26 | 日立麦克赛尔株式会社 | Electric source system and sensor system having same |
| CN101803144A (en) * | 2007-09-18 | 2010-08-11 | 松下电器产业株式会社 | Power supply system |
| CN102044661A (en) * | 2009-10-23 | 2011-05-04 | 比克国际(天津)有限公司 | Method for preparing lithium ion battery slurry |
| CN201584443U (en) * | 2009-12-17 | 2010-09-15 | 深圳市创明电池技术有限公司 | Mold for adjusting temperature of lithium ion battery group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895970A (en) * | 2015-01-07 | 2016-08-24 | 广西南宁百兰斯科技开发有限公司 | High-energy and environmental-friendly nickel-zinc storage battery |
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Application publication date: 20120307 |