CN102034880B - High-efficiency solar photovoltaic cell and high-efficiency solar photovoltaic cell system - Google Patents
High-efficiency solar photovoltaic cell and high-efficiency solar photovoltaic cell system Download PDFInfo
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- CN102034880B CN102034880B CN 201010538574 CN201010538574A CN102034880B CN 102034880 B CN102034880 B CN 102034880B CN 201010538574 CN201010538574 CN 201010538574 CN 201010538574 A CN201010538574 A CN 201010538574A CN 102034880 B CN102034880 B CN 102034880B
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Abstract
The invention relates to a high-efficiency solar photovoltaic cell, which is characterized in that the light-ward surface and the backlight surface of the high-efficiency solar photovoltaic cell are respectively provided with a reverse electric field to form electrodes; the electrodes formed by all the reverse electric fields are respectively one wire; the wires form a centrosymmetric planar meshed shape opposite to the center point of the corresponding surface of the high-efficiency solar photovoltaic cell; the electrodes formed by the reverse electric fields on the light-ward surface and the backlight surface of the high-efficiency solar photovoltaic cell are symmetric to the cell and are respectively insulated from the positive electrode and the negative electrode of the cell as well as the cell body; and respective frames of the electrodes formed by the two mesh reverse electric fields are respectively connected with an epitaxial wire which extends out of the cell and is insulated from outside. The invention also provides a high-efficiency solar photovoltaic cell system adopting the high-efficiency solar photovoltaic cell; and compared with the prior art, by adopting the technical scheme, the photoelectric conversion efficiency of the solar photovoltaic cell and the solar photovoltaic cell system can be greatly improved.
Description
Technical field
The present invention relates to a kind of high-efficiency solar photovoltaic battery and a kind of high-efficiency solar photovoltaic battery system.
Background technology
At present, the conversion efficiency of solar-energy photo-voltaic cell is low, cost is high, is the bottleneck that restricts its popularization and application.With the most widely used silicon single-layer solar-energy photo-voltaic cell is example, and according to Theoretical Calculation, the photoelectric conversion efficiency of this solar-energy photo-voltaic cell can reach about 30%.But, present the highest 25 % that are no more than of the conversion efficiency of this battery under laboratory condition, and the highest 20 % that are no more than of the conversion efficiency of this battery industry product.
For example, whole world photovoltaic cell annual production ranks the first, Chinese jiangsu wuxi Shang De Utilities Electric Co., and its correlation circumstance is such:
The photoelectric conversion efficiency that how to improve solar energy is one of topmost target of moral electric power research and development still; Still the disruptive technology of moral electric power---Pluto (Pluto) technology has dropped into large-scale production in August, 2009 at present; Monocrystalline photovoltaic (PV) battery has been realized the conversion efficiency more than 18%; The polycrystalline photovoltaic cell of large-scale production also near 17% conversion efficiency, all is higher than traditional silk screen printing crystal photovoltaic cell far away.Pluto (Pluto) technology will continue to obtain to improve, and be desirably in future in two years, realize the target of monocrystalline photovoltaic (PV) battery 20% conversion efficiency, polycrystalline photovoltaic cell 18% conversion efficiency.(data source:
http://old.suntech-power.com/index.phpoption=com_content&view=article&id=83&Itemid=83&lang=zh）
The present situation that power conversion efficiency (pce) is low, cost is high is so big to the influence of its popularization and application; So that in the very high developed country of household economy such as Germany, the U.S., Japan income, country also has to carry out the economic benefit of great number to the use of civilian photovoltaic product.In CONTINENTAL AREA OF CHINA, government does not have enough financial resources to come the widely-used economic benefit of carrying out great number to civilian photovoltaic product at present.
See from the angle of energy, in order to improve the efficient of photovoltaic cell, the first, need to such an extent that reduce the recombination losses (, just be equivalent to it and " buried in oblivion ") of inside battery photo-generated carrier like photo-generated carrier " compound "; The second, need to such an extent that the minimizing photo-generated carrier flows and (joule-Lenz) thermal loss of formation at inside battery; And these two kinds of losses are quite big to the influence of battery efficiency.For this reason, correspondingly, the first, industry has to use the material (this is the first cause that causes the battery system cost high) of the extremely low semi-conducting material of based on very high purity, ratio of defects or other type at present; Second; Though the manufacture craft measure of current battery system is various complicacy (this has further improved cost) very; But wherein have no a technological measure, flow and the recombination losses or the joule-Lenz's thermal loss that form are worked out at inside battery in order to reduce photo-generated carrier.
Space flight circle is in order to utilize the luminous energy of each spectral coverage of sunlight (for example ruddiness spectral coverage and infrared spectral coverage) as far as possible; Use very expensive semi-conducting material (gallium, indium, phosphorus, arsenic etc.) and silicon materials; Add extremely complicated technology, process " sandwich construction solar cell " (normally 3 layers).Several individual layer cell stack (series connection) get up to form a multi-layer cell, and each layer battery absorbs the luminous energy of the certain spectral coverage of sunlight.Though the efficient of this sandwich construction battery increases than common individual layer battery; Yet first; Because the physical principle of every layer of battery is in fact just the same with common individual layer battery; So in the inside of multi-layer cell, these two most crucial problems of the recombination losses of above-mentioned minimizing photo-generated carrier and joule-Lenz's thermal loss still do not obtain any solution; The second, because this sandwich construction battery cost is high, it must not be used in the normal domestic field.
Cause the basic reason of above-mentioned condition to be; Traditional physical theory is thought: under the situation that the thickness of photovoltaic cell type of material, purity and ratio of defects, battery has been confirmed; By compound chance (it causes recombination losses), the resistance (it causes joule-Lenz's thermal loss) that met with, all be impossible change when photo-generated carrier is flowed through inside battery.Therefore, scientific and technological circle do not find at present, and (being limited to conventional physical) also can not find real otherwise effective technique measure to reduce this two kinds of losses, so that improve the efficient and its cost of reduction of photovoltaic cell significantly.The whole world generally woulds be better this.
Preamble said " according to Theoretical Calculation, the photoelectric conversion efficiency of silicon single-layer solar cell can reach about 30 % " calculates according to traditional physical theory.Obviously, if can eliminate above-mentioned " recombination losses " and " joule-Lenz's thermal loss " basically, the theoretical efficiency of battery can be greatly enhanced (theoretical efficiency like the silicon single-layer solar cell can reach about 40 %).
Can find out to have only according to brand-new physics principle and work out the brand-new technology measure, could real solve effectively the popularization and application of restriction solar-energy photo-voltaic cell bottleneck problem---conversion efficiency is low, cost is high.
In addition, well-known, must form " solar-energy photo-voltaic cell system " to several battery units, just with practical value.Yet prior art but only is that unit takes measures with the battery unit, improves the efficient of solar-energy photo-voltaic cell.The present invention shows, except prior art, can also be unit with the photovoltaic cell system, develops the higher new technology of efficient.
Summary of the invention
The purpose of this invention is to provide a kind of high-efficiency solar photovoltaic battery and a kind of high-efficiency solar photovoltaic battery system.
A kind of high-efficiency solar photovoltaic battery; Wherein: on the side to light of this high-efficiency solar photovoltaic battery, shady face, be respectively arranged with reverse electric field and form electrode; Said each reverse electric field forms electrode and is a lead; The plane mesh shape that the central point of relative this high-efficiency solar photovoltaic battery respective face of this lead formation is centrosymmetric; Reverse electric field on the side to light of this high-efficiency solar photovoltaic battery, the shady face forms electrode this battery symmetry relatively; Reverse electric field on this high-efficiency solar photovoltaic battery side to light, the shady face forms electrode and all insulate with positive pole, negative pole and this battery itself of this battery, also be connected with respectively on two netted reverse electric field formation electrodes frame separately one stretch out battery, to the extension lead of external insulation.
Described high-efficiency solar photovoltaic battery; Wherein: be respectively arranged with sphere of movements for the elephants shape groove on the side to light of this high-efficiency solar photovoltaic battery, the shady face; The corresponding outside of corresponding with this high-efficiency solar photovoltaic battery respectively side to light of four outer rim of sphere of movements for the elephants shape groove or shady face 4 is parallel along the line, and in move back 1 ~ 5mm distance; The length and width of every groove cross section of sphere of movements for the elephants shape groove is all in 0.05 ~ 0.25 mm scope; At this pairing respective face edge in high-efficiency solar photovoltaic battery sphere of movements for the elephants shape groove upper right corner, be carved with the hole, corner, between the upper right corner of sphere of movements for the elephants shape groove and the hole, corner, be provided with link slot and connect; The lead that the reverse electric field of said formation forms electrode begins from the solder joint in the hole, corner; Through passing the groove on the last bar limit of sphere of movements for the elephants shape groove, left bar limit, following bar limit behind the said link slot successively, get into the groove on the right bar limit of sphere of movements for the elephants shape groove again, when reaching the midpoint on right bar limit, turning left gets into the inner cross bath of sphere of movements for the elephants shape groove; And the circle that in the cross groove, detours forms bilateral cross; Turn into groove then, turn in link slot again, get into then in the hole, corner into the right bar of sphere of movements for the elephants shape groove limit the first half; End at the solder joint in the hole, corner, be connected with the extension lead on the solder joint.
Described high-efficiency solar photovoltaic battery, wherein: the last bar limit of sphere of movements for the elephants shape groove, left bar limit, the groove on bar limit, right bar limit is 2mm with the corresponding outside of this high-efficiency solar photovoltaic battery respective face distance between along the line respectively down; The length and width of every groove cross section of sphere of movements for the elephants shape groove is 0.12mm; The cross section length and width of link slot is 0.12mm; The length in hole, corner is 0.15mm.
Described high-efficiency solar photovoltaic battery, wherein: the lead that the reverse electric field of said formation forms electrode is an enamelled wire; Said extension lead is an enamelled wire.
A kind of high-efficiency solar photovoltaic battery system that adopts said high-efficiency solar photovoltaic battery, wherein: this high-efficiency solar photovoltaic battery system comprises an integral multiple high-efficiency solar photovoltaic battery of 2; High-efficiency solar photovoltaic battery is divided into A group and the B group that number equates, each high-efficiency solar photovoltaic battery is connected successively in the A group, and each high-efficiency solar photovoltaic battery is connected successively in the B group; Total positive pole of A group through to the lead of external insulation simultaneously with the B group in the anodal corresponding lip-deep extension lead of each high-efficiency solar photovoltaic battery be connected, total negative pole of A group is connected with the corresponding lip-deep extension lead of negative pole of each high-efficiency solar photovoltaic battery during B organizes; Total positive pole of B group through to the lead of external insulation simultaneously with the A group in the anodal corresponding lip-deep extension lead of each high-efficiency solar photovoltaic battery be connected, total negative pole of B group is connected with the corresponding lip-deep extension lead of negative pole of each high-efficiency solar photovoltaic battery during A organizes.
Described high-efficiency solar photovoltaic battery system; Wherein: be carved with sphere of movements for the elephants shape groove on the side to light of each high-efficiency solar photovoltaic battery, the shady face respectively; The corresponding outside of corresponding with this high-efficiency solar photovoltaic battery respectively side to light of four outer rim of sphere of movements for the elephants shape groove or shady face 4 is parallel along the line, and in move back 1 ~ 5mm distance; The length and width of every groove cross section of sphere of movements for the elephants shape groove is all in 0.05 ~ 0.25 mm scope; At this pairing respective face edge in high-efficiency solar photovoltaic battery sphere of movements for the elephants shape groove upper right corner, be carved with the hole, corner, between the upper right corner of sphere of movements for the elephants shape groove and the hole, corner, be provided with link slot and connect; The lead that the reverse electric field of said formation forms electrode begins from the solder joint in the hole, corner; Through passing the groove on the last bar limit of sphere of movements for the elephants shape groove, left bar limit, following bar limit behind the said link slot successively, get into the groove on the right bar limit of sphere of movements for the elephants shape groove again, when reaching the midpoint on right bar limit, turning left gets into the inner cross bath of sphere of movements for the elephants shape groove; And the circle that in the cross groove, detours forms bilateral cross; Turn into groove then, turn in link slot again, get into then in the hole, corner into the right bar of sphere of movements for the elephants shape groove limit the first half; End at the solder joint in the hole, corner, be connected with the extension lead on the solder joint.
Described high-efficiency solar photovoltaic battery system, wherein: the last bar limit of sphere of movements for the elephants shape groove, left bar limit, the groove on bar limit, right bar limit is 2mm with the corresponding outside of this high-efficiency solar photovoltaic battery respective face distance between along the line respectively down; The length and width of every groove cross section of sphere of movements for the elephants shape groove is 0.12mm; The cross section length and width of link slot is 0.12mm; The length in hole, corner is 0.15mm.
Described high-efficiency solar photovoltaic battery system, wherein: the lead that the reverse electric field of said formation forms electrode is an enamelled wire; Said extension lead is an enamelled wire.
The present invention will reach following technique effect after adopting technique scheme:
High-efficiency solar photovoltaic battery of the present invention is reverse electric field to be set respectively on the side to light, shady face at high-efficiency solar photovoltaic battery form electrode; High-efficiency solar photovoltaic battery of the present invention system; It is the extension lead that forms electrode via two on each high-efficiency solar photovoltaic battery side to light and the shady face in this system reverse electric fields; Between these two electrodes, add external voltage, thereby form the electric field that concerning the flowing of the inner photo-generated carrier of each high-efficiency solar photovoltaic battery, has backward-acting.
(see " variation of opinion photon and Cyberspace position " according to " communication theory of photon and electronics "; This article is published in the magazine " Chinese science and technology achievement " that the China national Department of Science and Technology is responsible for; 2010 the 5th phases; The 48th page-57 pages); The change of the locus of photon and electronics (be included in photovoltaic cell unit P matrix and N matrix in locus) is the propagation that they are carried out in discontinuous space-time and space-time continuously stage by stage, rather than conventional physical said they in aerial (machinery) motion carried out of consecutive hours, but photon and electronics have a kind of " equivalent (machinery) movement velocity ".
During the high-efficiency solar photovoltaic battery system works; A, two groups of total electromotive forces phases separately of the B inside of each high-efficiency solar photovoltaic battery unit of the other side each other are whole P matrix and whole N matrix; An electric field that concerning the flowing of all photo-generated carriers, has backward-acting is provided, but the formation electrode of this reverse electric field and corresponding battery unit original circuit (like the positive and negative electrode of battery unit etc.) and battery unit self insulate all.This reverse effect of electric field is that photo-generated carrier is slowed down in inner equivalence (machinery) movement velocity of battery unit.Can know that by the electricity theory slowing down of this speed can cause reducing of the interior photogenerated current of battery unit.
Yet, can know again that according to the communication theory of photon and electronics the number of times that but can make photo-generated carrier carry out " resting " in each battery unit inside that slows down of above-mentioned speed significantly reduces.So, inner at battery system, the first, the compound chance of photo-generated carrier significantly reduces (obviously, this can partly offset above-mentioned " photogenerated current reduces in the battery unit " again); The second, the number of times of the lattice collisions of photo-generated carrier and P matrix and N matrix material significantly reduces, and the collision dynamics also weaken greatly, promptly the resistance of material weakens greatly.That is to say, each battery unit inside and then whole system in the photovoltaic cell system, the recombination losses of photo-generated carrier and joule-Lenz's thermal loss have all significantly reduced.
The equivalence of photo-generated carrier (machinery) movement velocity is that photo-generated carrier does work to reverse electric field by the physical substance that reverse electric field slows down.That is to say; A part even most of kinetic energy of photo-generated carrier (the particularly high speed photo-generated carrier that photon produced of sunlight medium-high frequency spectral coverage such as purple light, ultraviolet light); As the photovoltaic cell that prior art is produced, do not change into heat energy and externally dissipated, but changed into their energies of position in reverse electric field.Can know that by the electricity theory consequently, compared with prior art, A, two groups of total electromotive forces separately of B must all can be greatly improved.
This just shows: though photo-generated carrier can cause reducing of A, two groups of photogenerated currents separately of B inner the slowing down of equivalence (machinery) movement velocity of each battery unit; But compared with prior art, A, two groups of total electromotive forces separately of B will inevitably be greatly improved; Like this, the product (being A, two groups of electrical power of sending separately of B) of A, two groups of total electromotive forces separately of B and photogenerated current separately all must have significantly and increase.On this basis; Add aforesaid " significantly reducing of photo-generated carrier compounding machine meeting; can partly offset reducing of photogenerated current " this factor, then compared with prior art, the electrical power that whole high-efficiency photovoltaic battery system sends must have greatly to be increased.
The system that constitutes with the silicon single-layer photovoltaic cell is that example is investigated the problems referred to above.Know that by preamble its theoretical efficiency no longer is about 30 % now, but about 40 %.After adopting all technical measures of the present invention; Even the recombination losses of each battery unit and joule-Lenz's thermal loss have only reduced by 60 % altogether in the system; The efficient of its battery system industrial products also can improve 5 percentage points fully, compares the improvement that prior art has had matter.
Description of drawings
Fig. 1 forms the sketch map of electrode for the reverse electric field that is provided with on the side to light of high-efficiency solar photovoltaic battery of the present invention or the shady face;
Fig. 2 is in the high-efficiency solar photovoltaic battery of the present invention system, and the reverse electric field of each battery unit forms the catenation principle figure of electrode in A, B two battery pack.
Embodiment
A kind of high-efficiency solar photovoltaic battery of the present invention; On the side to light of this high-efficiency solar photovoltaic battery, shady face, be respectively arranged with reverse electric field and form electrode; Said each reverse electric field forms electrode and is a lead; The plane mesh shape that the central point of relative this high-efficiency solar photovoltaic battery respective face of this lead formation is centrosymmetric; Reverse electric field on the side to light of this high-efficiency solar photovoltaic battery, the shady face forms electrode this high-efficiency solar photovoltaic battery symmetry relatively; Reverse electric field on each high-efficiency solar photovoltaic battery side to light, the shady face forms electrode and all itself insulate mutually with positive pole, negative pole and the battery of corresponding high-efficiency solar photovoltaic battery, and each netted reverse electric field forms electrode and also is connected with an extension lead that stretches out battery respectively.
Like Fig. 1; On the side to light of this high-efficiency solar photovoltaic battery 1, shady face, be carved with sphere of movements for the elephants shape groove 3 (degree of depth, the width of sphere of movements for the elephants shape groove 3 each bar groove cross section are 0.12 mm) respectively; Four outer rim of sphere of movements for the elephants shape groove 3 respectively with this high-efficiency solar photovoltaic battery 1 corresponding side to light or shady face on the corresponding outside parallel along the line, and move back 2 mm distances all; The edge of pairing side to light in sphere of movements for the elephants shape groove 3 upper right corner or shady face is carved with hole, corner 2 (its length, width, the degree of depth are 0.15 mm); Be provided with link slot 5 (degree of depth of link slot 5, width are 0.12 mm) between the upper right corner of sphere of movements for the elephants shape groove 3 and the hole, corner 2; An enamelled wire 4 (its nominal diameter is 0.03 mm) is from solder joint 6 beginnings in hole, corner 2; Through passing the groove on the last bar limit of sphere of movements for the elephants shape groove 3, left bar limit, following bar limit behind the link slot 5 successively; Get into the groove on the right bar limit of sphere of movements for the elephants shape groove 3 again, when reaching the midpoint on sphere of movements for the elephants shape groove 3 right bar limits, turning left gets into the cross bath of sphere of movements for the elephants shape groove 3 inside, and the circle that in the cross groove, detours forms bilateral cross; Turn into groove then into sphere of movements for the elephants shape groove 3 right bar limit the first half; Turn in link slot 5 again, get into then in the hole, corner 2, end at the solder joint 6 in the hole, corner 2.At solder joint 6, weld the initiating terminal of this enamelled wire and clearing end, welding and going up nominal diameter is the extension enamelled wire 7 (extension enamelled wire 7 is stretched 3 mm at the battery sheet epitaxy) of 0.10 mm; Apply whole pad with well behaved insulating varnish.
Be bonded in enamelled wire 4 with sun-proof, age inhibiting bonding agent in the sphere of movements for the elephants shape groove of side to light or shady face 1 of battery unit, be bonded in an end of extension enamelled wire 7 in the hole, corner, the upper right corner of side to light or shady face 1 of battery unit.
Integral multiple by 2 an above-mentioned high-efficiency solar photovoltaic battery constitutes the high-efficiency solar photovoltaic battery system; In the system; A plurality of high-efficiency solar photovoltaic batteries are divided into A group and the B group that number equates; See Fig. 2, each high-efficiency solar photovoltaic battery is connected successively in the A group, and each high-efficiency solar photovoltaic battery is connected successively in the B group; With enamelled wire (nominal diameter is 0.10 mm); With A group total anodal simultaneously with the B group in the anodal corresponding lip-deep extension enamelled wire 7 of each high-efficiency solar photovoltaic battery be connected, total negative pole of A group corresponding lip-deep extension enamelled wire 7 of negative pole with each high-efficiency solar photovoltaic battery during B organizes is connected; With enamelled wire (nominal diameter is 0.10 mm); With B group total anodal simultaneously with the A group in the anodal corresponding lip-deep extension enamelled wire 7 of each high-efficiency solar photovoltaic battery be connected, with total negative pole of B group be connected with the corresponding lip-deep extension enamelled wire 7 of negative pole of each high-efficiency solar photovoltaic battery during A organizes
.
In addition, the additional in addition technique effect of above-mentioned high-efficiency solar photovoltaic battery system provides following two approach that reduce the high performance solar batteries system costs:
The first, owing to inside at each battery unit of high-efficiency solar photovoltaic battery system; The number of times that photo-generated carrier " rests " significantly reduces; Thereby the chance of photo-generated carrier " compound " significantly reduces; We just can come manufacture batteries (what degree purity, ratio of defects are reduced to actually just is unlikely and influences photoelectric conversion rate, is decided by test) with the battery material than low-purity, low ratio of defects;
The second, as some users when not being very high to the requirement of high-efficiency battery system photoelectric conversion rate, we can be in the middle of the technological measure of prior art, removes some and concerning improving transfer ratio, belongs to thing doubly and the measure of merit half.
Claims (6)
1. high-efficiency solar photovoltaic battery; It is characterized in that: on the side to light of this high-efficiency solar photovoltaic battery, shady face, be respectively arranged with reverse electric field and form electrode; Said each reverse electric field forms electrode and is a lead; The plane mesh shape that the central point of relative this high-efficiency solar photovoltaic battery respective face of this lead formation is centrosymmetric; Reverse electric field on the side to light of this high-efficiency solar photovoltaic battery, the shady face forms electrode this battery symmetry relatively; Reverse electric field on this high-efficiency solar photovoltaic battery side to light, the shady face forms electrode and all insulate with positive pole, negative pole and this battery itself of this battery, also be connected with respectively on two netted reverse electric field formation electrodes frame separately one stretch out battery, to the extension lead of external insulation;
Be respectively arranged with sphere of movements for the elephants shape groove on the side to light of this high-efficiency solar photovoltaic battery, the shady face; The corresponding outside of corresponding with this high-efficiency solar photovoltaic battery respectively side to light of four outer rim of sphere of movements for the elephants shape groove or shady face 4 is parallel along the line, and in move back 1 ~ 5mm distance; The length and width of every groove cross section of sphere of movements for the elephants shape groove is all in 0.05 ~ 0.25 mm scope; At this pairing respective face edge in high-efficiency solar photovoltaic battery sphere of movements for the elephants shape groove upper right corner, be carved with the hole, corner, between the upper right corner of sphere of movements for the elephants shape groove and the hole, corner, be provided with link slot and connect; The lead that the reverse electric field of said formation forms electrode begins from the solder joint in the hole, corner; Through passing the groove on the last bar limit of sphere of movements for the elephants shape groove, left bar limit, following bar limit behind the said link slot successively, get into the groove on the right bar limit of sphere of movements for the elephants shape groove again, when reaching the midpoint on right bar limit, turning left gets into the inner cross bath of sphere of movements for the elephants shape groove; And the circle that in the cross groove, detours forms bilateral cross; Turn into groove then, turn in link slot again, get into then in the hole, corner into the right bar of sphere of movements for the elephants shape groove limit the first half; End at the solder joint in the hole, corner, be connected with the extension lead on the solder joint.
2. high-efficiency solar photovoltaic battery as claimed in claim 1 is characterized in that: the last bar limit of sphere of movements for the elephants shape groove, left bar limit, the groove on bar limit, right bar limit is 2mm with the corresponding outside of this high-efficiency solar photovoltaic battery respective face distance between along the line respectively down; The length and width of every groove cross section of sphere of movements for the elephants shape groove is 0.12mm; The cross section length and width of link slot is 0.12mm; The length in hole, corner is 0.15mm.
3. high-efficiency solar photovoltaic battery as claimed in claim 2 is characterized in that: the lead that the reverse electric field of said formation forms electrode is an enamelled wire; Said extension lead is an enamelled wire.
4. high-efficiency solar photovoltaic battery system that adopts the said high-efficiency solar photovoltaic battery of claim 1, it is characterized in that: this high-efficiency solar photovoltaic battery system comprises an integral multiple high-efficiency solar photovoltaic battery of 2; High-efficiency solar photovoltaic battery is divided into A group and the B group that number equates, each high-efficiency solar photovoltaic battery is connected successively in the A group, and each high-efficiency solar photovoltaic battery is connected successively in the B group; Total positive pole of A group through to the lead of external insulation simultaneously with the B group in the anodal corresponding lip-deep extension lead of each high-efficiency solar photovoltaic battery be connected, total negative pole of A group is connected with the corresponding lip-deep extension lead of negative pole of each high-efficiency solar photovoltaic battery during B organizes; Total positive pole of B group through to the lead of external insulation simultaneously with the A group in the anodal corresponding lip-deep extension lead of each high-efficiency solar photovoltaic battery be connected, total negative pole of B group is connected with the corresponding lip-deep extension lead of negative pole of each high-efficiency solar photovoltaic battery during A organizes;
Be carved with sphere of movements for the elephants shape groove on the side to light of each high-efficiency solar photovoltaic battery, the shady face respectively; The corresponding outside of corresponding with this high-efficiency solar photovoltaic battery respectively side to light of four outer rim of sphere of movements for the elephants shape groove or shady face 4 is parallel along the line, and in move back 1 ~ 5mm distance; The length and width of every groove cross section of sphere of movements for the elephants shape groove is all in 0.05 ~ 0.25 mm scope; At this pairing respective face edge in high-efficiency solar photovoltaic battery sphere of movements for the elephants shape groove upper right corner, be carved with the hole, corner, between the upper right corner of sphere of movements for the elephants shape groove and the hole, corner, be provided with link slot and connect; The lead that the reverse electric field of said formation forms electrode begins from the solder joint in the hole, corner; Through passing the groove on the last bar limit of sphere of movements for the elephants shape groove, left bar limit, following bar limit behind the said link slot successively, get into the groove on the right bar limit of sphere of movements for the elephants shape groove again, when reaching the midpoint on right bar limit, turning left gets into the inner cross bath of sphere of movements for the elephants shape groove; And the circle that in the cross groove, detours forms bilateral cross; Turn into groove then, turn in link slot again, get into then in the hole, corner into the right bar of sphere of movements for the elephants shape groove limit the first half; End at the solder joint in the hole, corner, be connected with the extension lead on the solder joint.
5. high-efficiency solar photovoltaic battery as claimed in claim 4 system is characterized in that: the last bar limit of sphere of movements for the elephants shape groove, left bar limit, the groove on bar limit, right bar limit is 2mm with the corresponding outside of this high-efficiency solar photovoltaic battery respective face distance between along the line respectively down; The length and width of every groove cross section of sphere of movements for the elephants shape groove is 0.12mm; The cross section length and width of link slot is 0.12mm; The length in hole, corner is 0.15mm.
6. high-efficiency solar photovoltaic battery as claimed in claim 5 system is characterized in that: the lead that the reverse electric field of said formation forms electrode is an enamelled wire; Said extension lead is an enamelled wire.
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| US4816082A (en) * | 1987-08-19 | 1989-03-28 | Energy Conversion Devices, Inc. | Thin film solar cell including a spatially modulated intrinsic layer |
| EP0831538A3 (en) * | 1996-09-19 | 1999-07-14 | Canon Kabushiki Kaisha | Photovoltaic element having a specific doped layer |
| CN100334744C (en) * | 2005-04-21 | 2007-08-29 | 中电电气（南京）光伏有限公司 | Silicon solar battery structure and making method |
| CN101552297B (en) * | 2008-04-03 | 2012-11-21 | 清华大学 | Solar cell |
| CN101404302B (en) * | 2008-11-17 | 2010-08-11 | 李庆明 | Method and apparatus for improving photoelectric conversion efficiency of silicon photovoltaic cell |
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2010
- 2010-11-10 CN CN 201010538574 patent/CN102034880B/en not_active Expired - Fee Related
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