CN202004490U - Household lithium ion battery repair device - Google Patents
Household lithium ion battery repair device Download PDFInfo
- Publication number
- CN202004490U CN202004490U CN2011200703348U CN201120070334U CN202004490U CN 202004490 U CN202004490 U CN 202004490U CN 2011200703348 U CN2011200703348 U CN 2011200703348U CN 201120070334 U CN201120070334 U CN 201120070334U CN 202004490 U CN202004490 U CN 202004490U
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- circuit
- lithium ion
- ion battery
- microcontroller
- battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model discloses a household lithium ion battery repair device, comprising a microcontroller, as well as a charging circuit, a discharging circuit and a status detection circuit which are connected with a battery to be repaired, the microcontroller is connected with the charging circuit, the discharging circuit and the control end of the status detection circuit through a digital/analog-analog/digital conversion circuit, and the charging circuit is connected with an alternating-current power supply through a rectifying and filtering circuit. In the utility model, a low-voltage pulse circulating charge-discharge mode is adopted to repair the aged lithium ion battery, so that lithium ions embedded in a carbon electrode come off and are not stuck in side, so as to achieve the effect of restoring partial electric capacity. The household lithium ion battery repair device has the advantages of simple structure and convenience in operation, and is suitable for repair of various lithium ion batteries.
Description
Technical field
The utility model relates to a kind of battery prosthetic device, particularly a kind of family expenses lithium ion battery prosthetic device.
Background technology
Lithium ion battery is that a kind of of early 1980s invention embeds and deviate from graphite cathode by lithium ion, thereby reaches the novel battery of accumulate and discharge purpose.Its operation principle is roughly: during charging, the lithium ion that generates at anode enters carbon (being generally graphite) negative pole by electrolyte, and the carbon negative pole has a lot of micropores, and lithium ion just embeds in the micropore; During discharge, the lithium ion that is embedded in the carbon hole is deviate from, and moves to positive pole.The lithium ion that can move is many more, and the capacitance of battery is also just big more.
Nowadays, lithium ion battery has become the significant energy source of consumer electronics product, but, lithium ion battery capacity after repeatedly charging and discharging still can descend, its reason mainly is the variation of positive and negative electrode material itself, from the molecule aspect, the void structure that holds lithium ion on the positive and negative electrode can subside gradually, stop up; From chemical terms, be the passivation of positive and negative electrode material activity, side reaction occurs and generate other stable compounds.Physically also situations such as positive electrode peels off gradually can occur, in a word, final result has all reduced in the battery can the free lithium ion number that moves in charge and discharge process, thereby causes the decline of capacitance.Therefore, how to repair and use aging lithium ion battery, part is recovered the capacitance of its decline, no matter is from economic benefit, still considers all have very practical value from the angle of energy conservation.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to provide a kind of family expenses lithium ion battery prosthetic device, recovers the effect of lithium ion battery capacitance to realize part.
The technical scheme that the utility model adopted: a kind of family expenses lithium ion battery prosthetic device, comprise microcontroller, and the charging circuit, discharge circuit and the state detection circuit that are connected with battery to be repaired, described microcontroller is connected with the control end of charging circuit, discharge circuit, state detection circuit by digital-to-analogue-analog to digital conversion circuit, and described charging circuit is connected with AC power through current rectifying and wave filtering circuit, transformer.
Above-mentioned lithium ion battery prosthetic device also comprises keyboard and the LCD display that is connected with microcontroller.
Above-mentioned microcontroller and digital-to-analogue-analog to digital conversion circuit pass through I
2The C bus connects.
The utility model adopts the mode of action of low-voltage pulse cycle charge-discharge, and aging lithium ion battery is repaired, and the feasible lithium ion that is embedded in carbon electrode is deviate from and is unlikely to be trapped in once more the inside, thereby reaches the effect of recovered part capacitance.Prove that according to experimental result this device can make and prolong the useful life of lithium ion battery approximately 5.8%～19.5%, avoids battery electric quantity the obviously phenomenon of decay to occur effectively after through the use of one period short time.Not only can realize abundant use by this device to lithium ion battery, and simple in structure, easy and simple to handle, be applicable to the reparation of various lithium ion batteries.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is a power circuit diagram of the present utility model;
Fig. 3 is charging circuit figure of the present utility model;
Fig. 4 is discharge circuit figure of the present utility model.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, lithium ion battery prosthetic device described in the utility model, comprise microcontroller (adopting single chip computer AT 89S51), and the charging circuit, discharge circuit and the state detection circuit that are connected with battery to be repaired, described microcontroller is connected with the control end of charging circuit, discharge circuit, state detection circuit by digital-to-analogue-modulus (AD-DA) change-over circuit, and described charging circuit is connected with AC power through current rectifying and wave filtering circuit, transformer.Described microcontroller also is connected with LCD display with keyboard, can import corresponding reparation voltage and current as required, and is shown by LCD display; Described digital-to-analogue-analog to digital conversion circuit has 4 road A/D convertor circuits and 1 road DA change-over circuit, passes through I
2C bus and microcontroller communication realize the control to charging/discharging voltage, electric current, time and cycle-index.
Be illustrated in figure 2 as system power supply circuit of the present utility model, the interchange of 220V (AC) civil power is exported three groups of AC9V voltages by two power transformers.Wherein, first group of AC9V voltage as the input of pressurizer LM317, and by the output voltage of microprocessor controls pressurizer LM317, is used for charging to battery (lithium ion battery to be repaired) after diode rectification filtering.Second and third group AC9V voltage is after diode rectification filtering, by pressurizer LM7805 and LM7905 output ± 5V direct voltage, as the system works power supply.
Be illustrated in figure 3 as charging circuit, after setting charge parameter, microcontroller is by interface P35 output low level, and triode Q1 conducting makes the relay adhesive, begins to charge to battery (lithium ion battery to be repaired).In addition, operational amplifier U2A forms the voltage that voltage follower is used to detect battery-end, resistance R 10, R11 parallel connection, the voltage at resistance two ends is directly proportional with electric current by resistance, according to U=IR, detect ohmically voltage, just can calculate electric current, thereby detect the size of charging current by resistance.Wherein, AD1 is used to detect the voltage of battery-end, the AD2 electric current that detects charging and discharging.Be illustrated in figure 4 as discharge circuit, as charging circuit, when system enters discharge regime, microcontroller is by interface P37 output low level, and triode Q2 conducting makes the relay adhesive, begins to discharge to battery (lithium ion battery to be repaired).The base potential of the control of AD-DA change-over circuit output simultaneously triode Q3, thereby the size of control discharging current, resistance R 16 is a discharge load resistance.
In order to prevent that the too high generation of the temperature of battery is dangerous in the charging process, designed state detection circuit at the two ends of battery (lithium ion battery to be repaired), be used to detect battery temperature.Described state detection circuit adopts the digital temperature sensor chip, is connected with microcontroller by the AD-DA change-over circuit, and temperature-measuring range is-55 ℃～+ 125 ℃, 0.5 ℃ of intrinsic thermometric resolution.Temperature sensor should closely contact with the shell of battery during work, and when temperature over-range, the automatic disconnection charge-discharge circuit is understood by system, and sends chimes of doom by buzzer.
The utility model adopts the electric main of 220V as input voltage, and its output voltage, electric current scalable utilize the mode of action of low-voltage pulse cycle charge-discharge that lithium ion battery is repaired, and can prolong the useful life of battery effectively.Have characteristics such as simple in structure, easy and simple to handle, be applicable to the reparation of various lithium ion batteries.
Claims (3)
1. family expenses lithium ion battery prosthetic device, it is characterized in that, comprise microcontroller, and the charging circuit, discharge circuit and the state detection circuit that are connected with battery to be repaired, described microcontroller is connected with the control end of charging circuit, discharge circuit, state detection circuit by digital-to-analogue-analog to digital conversion circuit, and described charging circuit is connected with AC power through current rectifying and wave filtering circuit, transformer.
2. family expenses lithium ion battery prosthetic device according to claim 1 is characterized in that, also comprises the keyboard and the LCD display that are connected with microcontroller.
3. family expenses lithium ion battery prosthetic device according to claim 1 is characterized in that described microcontroller and digital-to-analogue-analog to digital conversion circuit pass through I
2The C bus connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200703348U CN202004490U (en) | 2011-03-17 | 2011-03-17 | Household lithium ion battery repair device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200703348U CN202004490U (en) | 2011-03-17 | 2011-03-17 | Household lithium ion battery repair device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004490U true CN202004490U (en) | 2011-10-05 |
Family
ID=44707216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200703348U Expired - Fee Related CN202004490U (en) | 2011-03-17 | 2011-03-17 | Household lithium ion battery repair device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124049A1 (en) * | 2021-12-30 | 2023-07-06 | 常州智戌新能源电力科技有限公司 | Power lithium battery fault repair machine and power lithium battery charging method |
-
2011
- 2011-03-17 CN CN2011200703348U patent/CN202004490U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023124049A1 (en) * | 2021-12-30 | 2023-07-06 | 常州智戌新能源电力科技有限公司 | Power lithium battery fault repair machine and power lithium battery charging method |
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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: 20111005 Termination date: 20140317 |