CN109391008A - It is a kind of with the cellular li-ion battery for preventing from overcharging - Google Patents
It is a kind of with the cellular li-ion battery for preventing from overcharging Download PDFInfo
- Publication number
- CN109391008A CN109391008A CN201811394667.9A CN201811394667A CN109391008A CN 109391008 A CN109391008 A CN 109391008A CN 201811394667 A CN201811394667 A CN 201811394667A CN 109391008 A CN109391008 A CN 109391008A
- Authority
- CN
- China
- Prior art keywords
- output end
- battery
- pole
- cellular
- positive plate
- 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
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 37
- 230000001413 cellular effect Effects 0.000 title claims abstract description 26
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- 229910000733 Li alloy Inorganic materials 0.000 claims description 5
- 239000001989 lithium alloy Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 2
- 230000005611 electricity Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 7
- 230000008676 import Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 2
- 230000010259 detection of temperature stimulus Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002641 lithium Chemical group 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000005130 electrotropism Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- -1 lithium metals Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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 discloses a kind of with the cellular li-ion battery for preventing from overcharging, including battery main body, battery case is provided on the outside of the battery main body, middle position inside the battery case is provided with pole, side at the top of the battery case is provided with pressure valve, the side of the close pole of the pressure valve is provided with positive terminal, and the both ends of place pole are all provided with positive plate, and the positive plate is all provided with circuit board far from the side of pole.The present invention controls current detecting, temperature detection and voltage detecting by power management chip and detects to the electricity of the battery to charge, temperature and voltage, and the result that will test imports in data analytical calculation, when temperature is than or equal to 60 DEG C, directly stop charging, and when the cell voltage to charge is greater than or equal to 4.2V, so that battery is stopped charging, to reduce bring risk in charging process, and avoids battery capacity decline problem.
Description
Technical field
It is specially a kind of with the cellular li-ion battery for preventing from overcharging the present invention relates to technical field of lithium batteries.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of, by
It is very active in the chemical characteristic of lithium metal, so that the processing of lithium metal, preservation, use, very high to environmental requirement, and with
The development of science and technology, present lithium battery have become mainstream, such as: cellular li-ion battery.
However existing cellular li-ion battery is easy to produce side effect after lithium cell core, which is crossed, is charged to voltage higher than 4.2V, and
Overcharged voltage is higher, and risk is also followed higher, and remaining lithium atom quantity is not after the high 4.2V of lithium cell voltage, in positive electrode
To half, memory location can often collapse at this time, allow battery capacity to generate permanent decline, if continuing to charge, due to cathode
Memory location has been already filled with lithium atom, and subsequent lithium metal can be piled up in negative electrode material surface, these lithium atoms can be by cathode table
Face grows ingotism toward the direction that lithium ion comes, and the crystallization of these lithium metals can keep positive and negative anodes short-circuit, have across diaphragm paper
When short circuit occur before battery just first explode, to reduce the security performance of cellular li-ion battery, reduce cellular li-ion battery
Service life.
Summary of the invention
The purpose of the present invention is to provide a kind of with the cellular li-ion battery for preventing from overcharging, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: it is a kind of with the cellular li-ion battery for preventing from overcharging, packet
Battery main body is included, battery case is provided on the outside of the battery main body, the middle position inside the battery case is provided with pole
Column, the side at the top of the battery case are provided with pressure valve, and the side of the close pole of the pressure valve is provided with positive terminal, institute
It is all provided with positive plate at the both ends of pole, the positive plate is all provided with circuit board, the circuit board far from the side of pole
One end close to positive plate is equipped with power management chip, and the circuit board is provided with cathode far from the side of positive plate, described
Cathode is provided with negative plate at the top of circuit board one end.
Preferably, the output end of the power management chip is electrically connected with current detecting, the power management chip
Output end is electrically connected with temperature detection, and the output end of the power management chip is electrically connected with voltage detecting, and voltage
The output end of detection is electrically connected with data analytical calculation, and the output end of the power management chip and the output end of positive plate are double
Electrotropism connection.
Preferably, input of the output end of the voltage detecting, temperature detection and current detecting all with data analytical calculation
End is electrically connected, and the output end of the data analytical calculation and the input terminal of power management chip are electrically connected.
Preferably, the output end of the power management chip and the two-way electric connection of the output end of negative plate, the anode
The output end of plate and the two-way electric connection of the output end of negative plate.
Preferably, the output end of the positive plate is electrically connected with pole, and the output end of pole and the two-way electricity of positive plate
Property connection.
Preferably, the negative plate uses lithium metal or lithium alloy, and the positive plate uses cobalt acid lithium.
Preferably, the bottom of the positive terminal is connected to the top of pole.
Preferably, the battery main body is in rectangular parallelepiped structure.
Compared with prior art, the beneficial effects of the present invention are: the present invention by power management chip control current detecting,
Temperature detection and voltage detecting detect the electricity of the battery to charge, temperature and voltage, and the result that will test is led
Enter in data analytical calculation, when temperature is than or equal to 60 DEG C, directly stops charging, and the cell voltage that ought be being charged is big
When 4.2V, so that battery is stopped charging, to reduce bring risk in charging process, and avoid electricity
Tankage declines problem, by control voltage, electricity and temperature, avoids generation lithium metal knot and causes short circuit phenomenon, to mention
The high security performance of cellular li-ion battery, improves the service life of cellular li-ion battery.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the system flow chart of circuit board of the present invention；
Fig. 3 is work flow diagram of the invention；
Fig. 4 is the working principle of the invention flow chart.
In figure: 1, battery main body；2, battery case；3, pressure valve；4, pole；5, positive plate；6, circuit board；7, power management
Chip；8, negative plate；9, cathode；10, positive terminal.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, a kind of embodiment provided by the invention: it is a kind of with the cellular li-ion battery for preventing from overcharging, including
Battery main body 1, the outside of battery main body 1 are provided with battery case 2, and the middle position inside battery case 2 is provided with pole 4, electricity
The side at 2 top of pond shell is provided with pressure valve 3, and the side of the close pole 4 of pressure valve 3 is provided with positive terminal 10, place pole 4
Both ends be all provided with positive plate 5, side of the positive plate 5 far from pole 4 is all provided with circuit board 6, and circuit board 6 is close to positive plate
5 one end is equipped with power management chip 7, and circuit board 6 is provided with cathode 9 far from the side of positive plate 5, and cathode 9 is close to circuit
Plate is provided with negative plate 8 at the top of 6 one end.
The present invention imports the inside of battery main body 1 by electric energy from positive terminal 10, and converts electrical energy into lithium ion, and lithium
Ion is detached from positive plate 5 and enters negative plate 8, and when electric discharge, lithium ion is detached from from negative plate 8 enters positive plate 5, and lithium ion is turned
It is melted into electric energy, then electric energy is exported from positive terminal 10, to complete the process being charged and discharged, and passes through power management chip 7
Battery main body 1 is detected, prevents cellular li-ion battery to overcharge to preferably avoid.
Attached drawing 3 please be considered and examined emphatically, the output end of power management chip 7 is electrically connected with current detecting, power management chip 7
Output end be electrically connected with temperature detection, the output end of power management chip 7 is electrically connected with voltage detecting, and voltage is examined
The output end of survey is electrically connected with data analytical calculation, the output end of power management chip 7 and the two-way electricity of output end of positive plate 5
Property connection.
This kind has the current detecting, temperature detection and the voltage detecting that prevent the cellular li-ion battery overcharged by setting, together
When to battery main body 1 carry out voltage, the detection of temperature and electricity, when the temperature of battery main body 1, voltage and electricity be not all exceeded
In the case where, it is lasting to charge, to preferably prevent battery main body 1 from overcharging, the security performance of battery main body 1 is improved, and mention
The high service life of battery main body 1.
Please consider and examine attached drawing 3 and 4 emphatically, the output end of voltage detecting, temperature detection and current detecting all with data analysis meter
The input terminal of calculation is electrically connected, and the output end of data analytical calculation and the input terminal of power management chip 7 are electrically connected.
This kind, which has, prevents the cellular li-ion battery overcharged by voltage detecting, temperature detection and current detecting simultaneously to battery
The detection of the progress voltage, temperature and electric current of main body 1 charges normal battery main body 1 in the case that three all meets.
Attached drawing 1 and 3 please be considered and examined emphatically, the output end of power management chip 7 connects with the two-way electrical property of output end of negative plate 8
It connects, the two-way electric connection of output end of the output end and negative plate 8 of positive plate 5.
This kind, which has, prevents the cellular li-ion battery overcharged by negative plate 8 and positive plate 5, and when charging, lithium ion is detached from
Positive plate 5 enters negative plate 8, and when electric discharge, lithium ion is detached from from negative plate 8 enters positive plate 5, and lithium ion is converted to electricity
Can, to complete the process being charged and discharged.
Attached drawing 1 please be considered and examined emphatically, and the output end of positive plate 5 is electrically connected with pole 4, and the output end of pole 4 and anode
The two-way electric connection of plate 5, negative plate 8 use lithium metal or lithium alloy, positive plate 5 use cobalt acid lithium, the bottom of positive terminal 10 with
The top of pole 4 is connected to, and battery main body 1 is in rectangular parallelepiped structure.
This kind, which has, prevents the cellular li-ion battery overcharged from using lithium metal or lithium alloy by negative plate 8, and positive plate 5 is adopted
The use of battery main body 1 is imitated so that the inside of battery main body 1 is preferably converted and be stored in electric energy with cobalt acid lithium
Fruit is more preferable.
Working principle: when charging, electric energy from positive terminal 10 import battery main body 1 inside, and convert electrical energy into lithium from
Son, and lithium ion is detached from positive plate 5 and enters negative plate 8, when electric discharge, lithium ion is detached from from negative plate 8 enters positive plate 5, and will
Lithium ion is converted to electric energy, and then electric energy is exported from positive terminal 10, to complete the process being charged and discharged, and in the mistake of charging
Cheng Zhong, voltage detecting, temperature detection and current detecting simultaneously to battery main body 1 carry out voltage, the detection of temperature and electricity, simultaneously
The voltage that will test, temperature and electricity import in data analytical calculation, and alignment carries out analysis and the result of analysis is imported electricity
Source control chip 7, during charging when the temperature of battery main body 1 is greater than or equal to 60 DEG C, power management chip 7 is controlled
Battery main body 1 stops charging, and temperature during charging of battery main body 1 rises no more than 30 DEG C, otherwise stops charging,
When cell voltage reaches 4.2V, power management chip 7 controls battery main body 1 and stops charging, the electricity inside battery main body 1
When amount reaches 100%, stop charging, and when temperature, voltage and the electricity of battery main body 1 are all without continuing in the case where exceeded
Charging, to preferably prevent battery main body 1 from overcharging, improves the security performance of battery main body 1, and improve battery main body 1
Service life.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (8)
1. a kind of with the cellular li-ion battery for preventing from overcharging, including battery main body (1), it is characterised in that: the battery main body (1)
Outside be provided with battery case (2), the internal middle position of the battery case (2) is provided with pole (4), the battery case
(2) side at the top of is provided with pressure valve (3), and the side of the close pole (4) of the pressure valve (3) is provided with positive terminal
(10), the both ends of place pole (4) are all provided with positive plate (5), and the positive plate (5) is all arranged far from the side of pole (4)
Have circuit board (6), the circuit board (6) is equipped with power management chip (7), the circuit board close to the one end of positive plate (5)
(6) side far from positive plate (5) is provided with cathode (9), and the cathode (9) is provided at the top of circuit board (6) one end
Negative plate (8).
2. according to claim 1 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the power management
The output end of chip (7) is electrically connected with current detecting, and the output end of the power management chip (7) is electrically connected with temperature inspection
It surveys, the output end of the power management chip (7) is electrically connected with voltage detecting, and the output end of voltage detecting is electrically connected
There are data analytical calculation, the output end of the power management chip (7) and the two-way electric connection of output end of positive plate (5).
3. according to claim 2 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the voltage inspection
The output end of survey, temperature detection and current detecting is all electrically connected with the input terminal of data analytical calculation, the data analysis meter
The output end of calculation and the input terminal of power management chip (7) are electrically connected.
4. according to claim 2 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the power management
The output end of chip (7) and the two-way electric connection of output end of negative plate (8), the output end and negative plate of the positive plate (5)
(8) the two-way electric connection of output end.
5. according to claim 1 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the positive plate
(5) output end is electrically connected with pole (4), and the output end of pole (4) and positive plate (5) two-way electric connection.
6. according to claim 1 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the negative plate
(8) lithium metal or lithium alloy are used, the positive plate (5) uses cobalt acid lithium.
7. according to claim 1 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the positive terminal
(10) bottom is connected to the top of pole (4).
8. according to claim 1 a kind of with the cellular li-ion battery for preventing from overcharging, it is characterised in that: the battery main body
It (1) is in rectangular parallelepiped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394667.9A CN109391008A (en) | 2018-11-20 | 2018-11-20 | It is a kind of with the cellular li-ion battery for preventing from overcharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394667.9A CN109391008A (en) | 2018-11-20 | 2018-11-20 | It is a kind of with the cellular li-ion battery for preventing from overcharging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109391008A true CN109391008A (en) | 2019-02-26 |
Family
ID=65428973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394667.9A Pending CN109391008A (en) | 2018-11-20 | 2018-11-20 | It is a kind of with the cellular li-ion battery for preventing from overcharging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109391008A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6001497A (en) * | 1997-07-23 | 1999-12-14 | Nippon Moli Energy Corporation | Overcharge preventing device |
| US20020180405A1 (en) * | 2001-04-06 | 2002-12-05 | Batson David C. | Terminal assembly for battery |
| JP2006228610A (en) * | 2005-02-18 | 2006-08-31 | Densei Lambda Kk | Secondary battery pack |
| JP2006310010A (en) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Lithium ion secondary battery |
| CN104953165A (en) * | 2015-07-12 | 2015-09-30 | 陈卡丹 | Overcharge anti-explosion battery |
| KR20180038856A (en) * | 2016-10-07 | 2018-04-17 | 삼성전자주식회사 | Method for charging battery and electronic apparatus |
| CN209184270U (en) * | 2018-11-20 | 2019-07-30 | 漳州高新区远见产业技术研究有限公司 | It is a kind of with the cellular li-ion battery for preventing from overcharging |
-
2018
- 2018-11-20 CN CN201811394667.9A patent/CN109391008A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6001497A (en) * | 1997-07-23 | 1999-12-14 | Nippon Moli Energy Corporation | Overcharge preventing device |
| US20020180405A1 (en) * | 2001-04-06 | 2002-12-05 | Batson David C. | Terminal assembly for battery |
| JP2006228610A (en) * | 2005-02-18 | 2006-08-31 | Densei Lambda Kk | Secondary battery pack |
| JP2006310010A (en) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Ind Co Ltd | Lithium ion secondary battery |
| CN104953165A (en) * | 2015-07-12 | 2015-09-30 | 陈卡丹 | Overcharge anti-explosion battery |
| KR20180038856A (en) * | 2016-10-07 | 2018-04-17 | 삼성전자주식회사 | Method for charging battery and electronic apparatus |
| CN209184270U (en) * | 2018-11-20 | 2019-07-30 | 漳州高新区远见产业技术研究有限公司 | It is a kind of with the cellular li-ion battery for preventing from overcharging |
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