CN101345306A - Lithium/thionyl chloride(Li/SOCl2) battery containing bromine chloride - Google Patents
Lithium/thionyl chloride(Li/SOCl2) battery containing bromine chloride Download PDFInfo
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- CN101345306A CN101345306A CNA2008100422370A CN200810042237A CN101345306A CN 101345306 A CN101345306 A CN 101345306A CN A2008100422370 A CNA2008100422370 A CN A2008100422370A CN 200810042237 A CN200810042237 A CN 200810042237A CN 101345306 A CN101345306 A CN 101345306A
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Abstract
The invention relates to a Li/SOCl2 battery containing BrCl, which adopts a carbon cathode containing cobalt phthalocyanine and uses nickel net as a cathode current collector; electrolyte is LiAlCl4/SOCl2 solution which contains BrCl; furthermore, 0 to 0.5 percent of cobalt phthalocyanine is added into the electrolyte; lithium sheets with coarse surface are pressed on stainless steel surface and taken as anode. By adding the cobalt phthalocyanine with suitable quantity in the battery carbon cathode and electrolyte, the porosity of the carbon cathode is improved, thus having good restriction effect on the deposition of the LiCl on the surface of the cathode. The discharging capacity of the novel Li/SOCl2 battery containing BrCl is improved by more than 20 percent compared with the normal Li/SOCl2 battery containing BrCl, and the working voltage is improved by more than 0.15V.
Description
Technical field
The present invention relates to a kind of lithium/thinly chloride (Li/SOCl
2) battery, particularly a kind of lithium/thinly chloride (Li/SOCl that contains bromine chloride of high discharge capacity
2) battery.
Background technology
Lithium/thinly chloride (Li/SOCl
2) battery is to have realized at present the highest battery of specific energy in the chemical power source, it has operating voltage height, discharging voltage balance (may be comparable with zinc-silver oxide cell), specific energy height (specific energy is about the twice of same zinc-silver oxide cell), serviceability temperature scope wide (can work) and storage life and grows advantages such as (5～10 years) in-40 ℃～+ 55 ℃ temperature ranges.To spacecrafts such as satellites, primary power source is too heavy to be the throw-weight that alleviates spacecraft always, improves the restraining factors of satellite payload, and short period spacecrafts such as China's retrievable satellite are as main power source with zinc-silver oxide cell.Some space flight of China, military project power supply factory have produced Li/SOCl
2Battery, the wherein big capacity Li/SOCl of Meiling Chemical Plant of China Aerospace Science and Industry Corporation of space flight power supply professional production factory development
2Battery has been used as accessory power supplys such as temperature control, wet control on certain serial retrievable satellite.If can be with Li/SOCl
2Battery replaces the main power source of zinc-silver oxide cell as spacecraft, can make the quality of spacecraft power supply system and volume all reduce more than 1/3rd; In addition, Li/SOCl
2The hygrometric state resting period of battery reaches 5-10, and the zinc-silver oxide cell hygrometric state resting period of using at present some months only, and zinc-silver oxide cell need carry out long technology in the target range before using and prepare, and is obvious, Li/SOCl
2Battery meets the service requirement of armament systems more.The primary power source that aircraft such as guided missile, satellite uses not only requires the specific energy height, also need possess bigger power output, and promptly battery will have certain pulsed discharge ability and high rate discharge performance.But, conventional Li/SOCl
2Battery exists safety issue, voltage delay and electric current fan-out capability problem, wants to use Li/SOCl
2Battery replaces the zinc-silver oxide cell as main power source, also needs further to improve or solve Li/SOCl
2The voltage delay problem and the safety problem of battery.
Add BrCl in the electrolyte and be considered to improve and solve lithium/thinly chloride (Li/SOCl
2) most effectual way of the voltage delay of battery and fail safe, raising electric current fan-out capability.But to this lithium/thinly chloride (Li/SOCl that contains bromine chloride
2) research of battery, also have many needs of work to carry out.As stability problem in the storage process, improve discharge capacity of the cell, raising large current discharging capability etc. all requires further study.By improving the carbon cathode performance, all helping improving the performance of battery in improvement of lithium anode surface-coated protective layer, electrolyte etc.
Summary of the invention
The object of the present invention is to provide the lithium/thinly chloride (Li/SOCl that contains bromine chloride of a kind of high discharge capacity and high working voltage
2) battery.
To achieve these goals, the present invention is by the following technical solutions:
The passivation of carbon cathode is to influence lithium/thinly chloride (Li/SOCl
2) major reason of discharge capacity of the cell.At lithium/thinly chloride (Li/SOCl
2) in the battery, can suppress the passivation of carbon cathode in the discharge process by in carbon cathode and electrolyte, adding eelctro-catalyst phthalocyanine cobalt, improve its reactivity, determine the appropriate catalyst consumption according to the action effect and the cost factor of catalyst.Shaggy lithium sheet is compressed on the stainless steel surfaces as anode, is that the carbon film of 4% eelctro-catalyst phthalocyanine cobalt is a negative electrode with adding mass fraction, and nickel screen is as cathode current collector, and electrolyte is the 1M LiAlCl that contains 2M BrCl
4/ SOCl
2, and add 0～0.5% eelctro-catalyst phthalocyanine cobalt.
The technique effect that the present invention can reach:
By in battery carbon cathode and electrolyte, adding an amount of phthalocyanine cobalt, improved the porousness of carbon cathode, to the good inhibitory effect that deposits of LiCl at cathode surface.Ac impedance spectroscopy and constant-current discharge curve show, containing the phthalocyanine cobalt in carbon cathode and the electrolyte makes the discharge capacity of the lithium/thinly chloride battery that contains bromine chloride improve more than 20%, operating voltage improves more than the 0.15V, and its large current discharging capability also increases.
Description of drawings
Fig. 1 is two kinds of different lithium/thinly chloride (Li/SOCl that contain bromine chloride
2) the carbon cathode ac impedance spectroscopy of battery
Fig. 2 is two kinds of different lithium/thinly chloride (Li/SOCl that contain bromine chloride
2) the 3mA constant-current discharge curve of battery
Fig. 3 is two kinds of different lithium/thinly chloride (Li/SOCl that contain bromine chloride
2) the 5mA constant-current discharge curve of battery
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
Example one:
With the carbon cathode that contains 4% phthalocyanine cobalt is positive pole, contains the 1MLiAlCl of 2M BrCl
4/ SOCl
2Be electrolyte, the lithium sheet is a negative pole, and barrier film selects for use glass fibre to be assembled into Experimental cell.
Tester and condition:
The determining instrument of ac impedance spectroscopy and polarization curve is: PAPC M283 potentiostat, and PARC 1025 spectrum analyzers, software kit are PAPC M398, and the test frequency scope of AC impedance is at 100.00kHz～50mHz, and ac-excited signal amplitude is 5mV; Adopt classical three-electrode system in the experiment, work electrode is a carbon cathode, all is lithium electrode to electrode and reference electrode.Ac impedance measurement carries out under the battery Open Circuit Potential.
The battery discharge experiment is carried out on the electric charge-discharge test instrument of orchid.
With the common lithium/thinly chloride (Li/SOCl that contains bromine chloride that does not add the phthalocyanine cobalt
2) battery compares, discharge capacity of the cell improves 20%, and output voltage improves 0.15V.
Example two:
With the carbon cathode that contains 4% phthalein cyanogen cobalt is positive pole, 1M LiAlCl
4/ SOCl
2The phthalocyanine cobalt of+2MBrCl+0.1% is an electrolyte, and the lithium sheet is a negative pole, and barrier film selects for use glass fibre to be assembled into Experimental cell, and tester and condition are with example one.
With the common lithium/thinly chloride (Li/SOCl that contains bromine chloride that does not add the phthalocyanine cobalt
2) battery compares, discharge capacity of the cell improves 22%, and output voltage improves 0.16V.
Example three:
With the carbon cathode that contains 4% phthalein cyanogen cobalt is positive pole, 1M LiAlCl
4/ SOCl
2The phthalocyanine cobalt of+2MBrCl+0.3% is an electrolyte, and the lithium sheet is a negative pole, and barrier film selects for use glass fibre to be assembled into Experimental cell, and tester and condition are with example one.
With the common lithium/thinly chloride (Li/SOCl that contains bromine chloride that does not add the phthalocyanine cobalt
2) battery compares, discharge capacity of the cell improves 25%, and output voltage improves 0.16V.
Example four:
With the carbon cathode that contains 4% phthalein cyanogen cobalt is positive pole, 1M LiAlCl
4/ SOCl
2The phthalocyanine cobalt of+2MBrCl+0.5% is an electrolyte, and the lithium sheet is a negative pole, and barrier film selects for use glass fibre to be assembled into Experimental cell, and tester and condition are with example one.
With the lithium/thinly chloride (Li/SOCl that contains bromine chloride that does not add the phthalocyanine cobalt
2) battery compares, discharge capacity of the cell improves 27%, and output voltage improves 0.17V.
Fig. 1 is illustrated under the Open Circuit Potential, and the battery carbon cathode electrochemical impedance spectroscopies (Nyquist figure) of two kinds of carbon films assembling, Figure 1A are the lithium/thinly chloride (Li/SOCl that mixes the novel chlorin-containing bromine that the carbon film of phthalocyanine cobalt assembles
2) the carbon cathode impedance spectrum of battery, Figure 1B is the lithium/thinly chloride (Li/SOCl that contains bromine chloride of common (not containing the phthalocyanine cobalt) carbon film assembling
2) the carbon cathode impedance spectrum of battery.As can be seen, the Nyquist figure that mixes phthalocyanine cobalt carbon cathode and pure carbon negative electrode comprises a high frequency arc and a low frequency arc, but the feasible lithium/thinly chloride (Li/SOCl that contains bromine chloride of the interpolation of phthalocyanine cobalt in the carbon cathode
2) the battery carbon cathode resistance value reduces greatly, thereby reduced the internal resistance of entire cell, improved the output voltage of battery.
The lithium/thinly chloride (Li/SOCl of novel chlorin-containing bromine to assembling
2) battery employing constant-current discharge, discharging current is 3mA and 5mA.Discharge cut-off voltage is 2V, and Fig. 2 is the lithium/thinly chloride (Li/SOCl that contains bromine chloride of two kinds of carbon film assemblings
2) discharge curve of battery under 3mA, Fig. 3 is the lithium/thinly chloride (Li/SOCl that contains bromine chloride of two kinds of carbon film assemblings
2) discharge curve of battery under 5mA.
Curve shows that the interpolation of phthalocyanine cobalt can significantly improve the discharge capacity and the operating voltage of carbon cathode in carbon cathode and the electrolyte.Its discharge capacity improves more than 20%, and output voltage improves more than the 0.15V, and its large current discharging capability also has raising.
Claims (2)
1, a kind of lithium/thinly chloride (Li/SOCl that contains bromine chloride (BrCl)
2) battery, shaggy lithium sheet is compressed on the stainless steel surfaces as anode, and nickel screen is as cathode current collector, and electrolyte is the LiAlCl that contains 0.5～3M BrCl
4/ SOCl
2Solution is characterized in that in the carbon cathode adding mass fraction and is 4% phthalocyanine cobalt, adds 0～0.5% phthalocyanine cobalt in the electrolyte.
2, a kind of lithium/thinly chloride (Li/SOCl that contains bromine chloride (BrCl) as claimed in claim 1
2) battery, it is characterized in that described electrolyte is the 1MLiAlCl that contains 2M BrCl
4/ SOCl
2Solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100422370A CN101345306A (en) | 2008-08-29 | 2008-08-29 | Lithium/thionyl chloride(Li/SOCl2) battery containing bromine chloride |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100422370A CN101345306A (en) | 2008-08-29 | 2008-08-29 | Lithium/thionyl chloride(Li/SOCl2) battery containing bromine chloride |
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| Publication Number | Publication Date |
|---|---|
| CN101345306A true CN101345306A (en) | 2009-01-14 |
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ID=40247244
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|---|---|---|---|
| CNA2008100422370A Pending CN101345306A (en) | 2008-08-29 | 2008-08-29 | Lithium/thionyl chloride(Li/SOCl2) battery containing bromine chloride |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311602A (en) * | 2013-04-11 | 2013-09-18 | 华中科技大学 | Electrolyte for lithium-air battery and corresponding battery product |
| CN105932292A (en) * | 2016-06-24 | 2016-09-07 | 陕西科技大学 | Li/SOCl2 nano cobalt phthalocyanine catalyst material for battery and preparation method of Li/SOCl2 nano copper phthalocyanine catalyst material |
| CN106129467A (en) * | 2016-08-31 | 2016-11-16 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte manufacture method |
| CN106169608A (en) * | 2016-08-31 | 2016-11-30 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte manufacture method |
| CN107665975A (en) * | 2016-07-29 | 2018-02-06 | 横店集团东磁股份有限公司 | A kind of interhalogen compounds battery anode slice and preparation method thereof |
| CN113437358A (en) * | 2021-07-19 | 2021-09-24 | 中国科学院青岛生物能源与过程研究所 | Electrolyte additive and application thereof in rechargeable lithium thionyl chloride battery |
| CN114068965A (en) * | 2021-11-19 | 2022-02-18 | 陕西科技大学 | Transition metal phthalocyanine coated phthalocyanine blue/asphalt coke active carbon composite material lithium-thionyl chloride battery positive electrode catalyst and preparation method thereof |
-
2008
- 2008-08-29 CN CNA2008100422370A patent/CN101345306A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311602A (en) * | 2013-04-11 | 2013-09-18 | 华中科技大学 | Electrolyte for lithium-air battery and corresponding battery product |
| CN103311602B (en) * | 2013-04-11 | 2016-01-13 | 华中科技大学 | A kind of lithium-air battery electrolyte and corresponding battery product |
| CN105932292A (en) * | 2016-06-24 | 2016-09-07 | 陕西科技大学 | Li/SOCl2 nano cobalt phthalocyanine catalyst material for battery and preparation method of Li/SOCl2 nano copper phthalocyanine catalyst material |
| CN105932292B (en) * | 2016-06-24 | 2018-04-13 | 陕西科技大学 | A kind of Li/SOCl2Cell nano phthalocyanine cobalt catalyst material and preparation method thereof |
| CN107665975A (en) * | 2016-07-29 | 2018-02-06 | 横店集团东磁股份有限公司 | A kind of interhalogen compounds battery anode slice and preparation method thereof |
| CN106129467A (en) * | 2016-08-31 | 2016-11-16 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte manufacture method |
| CN106169608A (en) * | 2016-08-31 | 2016-11-30 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte manufacture method |
| CN106129467B (en) * | 2016-08-31 | 2019-06-25 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte production method |
| CN106169608B (en) * | 2016-08-31 | 2019-08-20 | 襄阳艾克特电池科技股份有限公司 | A kind of lithium thionyl chloride battery electrolyte production method |
| CN113437358A (en) * | 2021-07-19 | 2021-09-24 | 中国科学院青岛生物能源与过程研究所 | Electrolyte additive and application thereof in rechargeable lithium thionyl chloride battery |
| CN114068965A (en) * | 2021-11-19 | 2022-02-18 | 陕西科技大学 | Transition metal phthalocyanine coated phthalocyanine blue/asphalt coke active carbon composite material lithium-thionyl chloride battery positive electrode catalyst and preparation method thereof |
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Open date: 20090114 |