JP5181173B2 - Photoelectric storage battery and method for manufacturing optical storage electrode - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title description 13
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- 229920001940 conductive polymer Polymers 0.000 claims description 33
- 239000011941 photocatalyst Substances 0.000 claims description 24
- 239000003792 electrolyte Substances 0.000 claims description 13
- 239000000178 monomer Substances 0.000 claims description 11
- 150000001450 anions Chemical class 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 4
- 238000006479 redox reaction Methods 0.000 claims description 4
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229920000767 polyaniline Polymers 0.000 description 10
- 239000008151 electrolyte solution Substances 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
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- 239000007800 oxidant agent Substances 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
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- 230000001590 oxidative effect Effects 0.000 description 3
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- 125000003277 amino group Chemical group 0.000 description 2
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- JAUFPVINVSWFEL-UHFFFAOYSA-N 1,1-dimethylimidazol-1-ium Chemical compound C[N+]1(C)C=CN=C1 JAUFPVINVSWFEL-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001786 chalcogen compounds Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Description
本発明は、光エネルギの有効利用に好適な光蓄電池及び光蓄電電極の製造方法に関する。 The present invention relates to a light storage battery suitable for effective use of light energy and a method for manufacturing a light storage electrode .
従来、光エネルギを電気エネルギとして使用するために、光電変換を行う装置等と蓄電池とを組み合わせた光蓄電システムが提案されている。このような光蓄電システムでは、例えば、図１１に示すように、電解液１０３が充填されたパッケージ１０７内に光発電電極１０１、対極１０２及び蓄電極１０６が挿入されている。また、対極１０２に負荷１０４が接続され、光発電電極１０１の接続先を、蓄電極１０６及び電球１０４から選択するスイッチ１０５が設けられている。蓄電の際には、スイッチ１０５が蓄電極１０６に接続され、放電の際には、スイッチ１０５が電球１０４に接続される。このような光蓄電システムは、非特許文献１に記載されている。 2. Description of the Related Art Conventionally, in order to use light energy as electric energy, an optical power storage system that combines a storage battery and a device that performs photoelectric conversion has been proposed. In such an optical power storage system, for example, as shown in FIG. 11, a photovoltaic electrode 101, a counter electrode 102, and a storage electrode 106 are inserted into a package 107 filled with an electrolytic solution 103. In addition, a load 104 is connected to the counter electrode 102, and a switch 105 for selecting a connection destination of the photovoltaic electrode 101 from the storage electrode 106 and the light bulb 104 is provided. The switch 105 is connected to the storage electrode 106 during power storage, and the switch 105 is connected to the light bulb 104 during discharge. Such an optical power storage system is described in Non-Patent Document 1.
このような光蓄電システムに対し、簡素化のために光発電及び蓄電を１つの電極が行うように構成された２電極の光蓄電池が提案されている。例えば、光蓄電及び蓄電の機能を合わせ持つ単一物質からなる電極が特許文献１及び２に記載され、光発電する物質が蓄電電極上に担持されて構成された複合電極が特許文献３に記載されている。
In order to simplify such a photovoltaic power storage system, a two-electrode photovoltaic battery configured so that one electrode performs photovoltaic power generation and storage has been proposed. For example,
しかしながら、上述の単一物質からなる電極では、蓄電に伴って半導体的性質の変化が起こり、光発電効率が低下してしまう。また、複合電極では、この欠点は克服されるが、光発電する物質が蓄電電極上に担持されただけであるため、光発電する部分と蓄電する部分との接触面積が小さく、十分な効率を得ることが困難である。 However, in the electrode made of the above-mentioned single substance, a change in semiconducting property occurs with storage, and the photovoltaic power generation efficiency is lowered. Moreover, in the composite electrode, although this drawback is overcome, since the substance for photovoltaic power generation is only carried on the storage electrode, the contact area between the photovoltaic generation portion and the storage portion is small, and sufficient efficiency is achieved. It is difficult to obtain.
本発明は、蓄電性能を向上させ、また、容易に製造することができる光蓄電電極を用いた光蓄電池及び光蓄電電極の製造方法を提供することを目的とする。 An object of the present invention is to provide an optical storage battery using an optical storage electrode that can improve the storage performance and can be easily manufactured, and a method for manufacturing the optical storage electrode .
本願発明者は、前記課題を解決すべく鋭意検討を重ねた結果、以下に示す発明の諸態様に想到した。 As a result of intensive studies to solve the above problems, the present inventor has come up with various aspects of the invention described below.
本発明に係る光蓄電池は、光蓄電電極と、対極と、前記光蓄電電極と前記対極との間に設けられた電解質と、前記光蓄電電極と前記対極との接続を切り替えるスイッチと、を有し、前記光蓄電電極は、導電性高分子膜と、前記導電性高分子膜内に分散し、光が照射されると前記電解質と前記導電性高分子膜との間に酸化還元反応を誘発する複数の光触媒粒子と、を有し、前記スイッチがＯＦＦの状態で光が照射されると、少なくとも前記電解質から陽イオンを前記導電性高分子膜内に取り込むかもしくは前記導電性高分子膜内から陰イオンを前記電解質に放出し、その後、光が照射されていない状態で前記スイッチがＯＮの状態にされると、少なくとも前記取り込まれた陽イオンを前記電解質に放出するかもしくは前記放出した陰イオンを前記導電性高分子膜内に取り込むことを特徴とする。The photoelectric storage battery according to the present invention includes a photoelectric storage electrode, a counter electrode, an electrolyte provided between the photoelectric storage electrode and the counter electrode, and a switch that switches connection between the photoelectric storage electrode and the counter electrode. The photo storage electrode is dispersed in the conductive polymer film and the conductive polymer film, and induces a redox reaction between the electrolyte and the conductive polymer film when irradiated with light. A plurality of photocatalyst particles, and when the light is irradiated with the switch being OFF, at least a cation is taken into the conductive polymer film from the electrolyte or in the conductive polymer film When an anion is released from the electrolyte to the electrolyte, and then the switch is turned on in a state where no light is irradiated, at least the incorporated cation is released to the electrolyte or the released anion. Before ion Characterized in that incorporated into the conductive polymer film.
本発明に係る光蓄電電極の製造方法は、前記光蓄電池が有する光蓄電電極の製造方法であって、導電性モノマーを含有する溶液と光触媒粒子とを混合する工程と、前記導電性モノマーを重合することにより、前記光触媒粒子を内包する導電性高分子膜を形成する工程と、を有することを特徴とする。 The method for producing a photo-electric storage electrode according to the present invention is a method for producing a photo-electric storage electrode of the photo-electric storage battery , comprising mixing a solution containing a conductive monomer and photocatalyst particles, and polymerizing the conductive monomer. And a step of forming a conductive polymer film including the photocatalyst particles.
本発明によれば、光触媒粒子の触媒作用により、電解質と導電性高分子膜との間に酸化還元反応が誘発されるので、蓄電効率を向上させることができる。また、室温下で製造することができ、その工程も従来のものよりも簡便なものとなる。 According to the present invention, since the redox reaction is induced between the electrolyte and the conductive polymer film by the catalytic action of the photocatalyst particles, it is possible to improve the power storage efficiency. Moreover, it can manufacture at room temperature and the process also becomes simpler than the conventional one.
以下、本発明の実施形態について、添付の図面を参照して具体的に説明する。図１Ａは、本発明の実施形態に光蓄電電極を示す模式図である。 Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. FIG. 1A is a schematic diagram showing a photo storage electrode in an embodiment of the present invention.
本実施形態に係る光蓄電電極１では、基板１ｃ上に導電性高分子膜１ａが形成され、導電性高分子膜１ａ中に光触媒粒子１ｂが分散している。また、複数の光触媒粒子１ｂのうちの一部は、導電性高分子膜１ａの表面から外部に露出している。基板１ｃとしては、例えば、可撓性のある樹脂基板が挙げられる。導電性高分子膜１ａとしては、例えば、ポリアニリン膜、ポリピロール膜、ポリチオフェン膜等が挙げられる。また、光触媒粒子１ｂとしては、例えば、ＴｉＯ2粒子、ＣｄＳ粒子、ＺｎＯ粒子、ＺｒＳｅ粒子、ＷＯ3粒子等の酸化物及びカルコゲン化合物が挙げられる。 In the optical storage electrode 1 according to this embodiment, the conductive polymer film 1a is formed on the substrate 1c, and the photocatalyst particles 1b are dispersed in the conductive polymer film 1a. Some of the plurality of photocatalyst particles 1b are exposed to the outside from the surface of the conductive polymer film 1a. Examples of the substrate 1c include a flexible resin substrate. Examples of the conductive polymer film 1a include a polyaniline film, a polypyrrole film, and a polythiophene film. Examples of the photocatalyst particles 1b include oxides and chalcogen compounds such as TiO 2 particles, CdS particles, ZnO particles, ZrSe particles, and WO 3 particles.
図２Ａは、光蓄電電極の走査型電子顕微鏡（ＳＥＭ）写真を示す図であり、図２Ｂは、ポリアニリン膜のＳＥＭ写真を示す図であり、図２Ｃは、ＴｉＯ2粒子のＳＥＭ写真を示す図である。図２Ａに示すように、光蓄電電極では、図２Ｂに示すポリアニリン膜と図２Ｃに示すＴｉＯ2粒子とが複合化されている。 FIG. 2A is a diagram showing a scanning electron microscope (SEM) photograph of the photoelectric storage electrode, FIG. 2B is a diagram showing an SEM photograph of the polyaniline film, and FIG. 2C is a diagram showing an SEM photograph of the TiO 2 particles. It is. As shown in FIG. 2A, in the optical storage electrode, the polyaniline film shown in FIG. 2B and the TiO 2 particles shown in FIG. 2C are combined.
次に、光蓄電電極１の使用方法について説明する。図１Ｂは、光蓄電電極１を備えた光蓄電池の構成を示す模式図である。 Next, a method for using the optical storage electrode 1 will be described. FIG. 1B is a schematic diagram illustrating a configuration of a photovoltaic battery including the photovoltaic storage electrode 1.
この光蓄電池では、電解液３が充填されたパッケージ７内に光蓄電電極１及び対極２が挿入されている。また、光蓄電電極１にスイッチ５が接続されている。そして、スイッチ５と対極２との間に、電球等の負荷４が接続される。対極２としては、例えば炭素繊維が挙げられる。電解液３としては、例えば希硫酸が挙げられる。
In this photovoltaic battery, a photovoltaic cell 1 and a
このように構成された光蓄電池において蓄電を行う場合には、図３Ａに示すように、スイッチ５を非導通の状態にしながら、光蓄電電極１に太陽光等の光を照射する。光蓄電電極１に光が照射されると、光触媒粒子１ｂにおいて電子及び正孔が励起され、これらが電解液３と導電性高分子膜１ａとの間に酸化還元反応を誘発する。この結果、導電性高分子膜１ａを構成するポリアニリン等の高分子の主鎖に、電解液３中の水素イオン（プロトン）が取り込まれる。また、重合時に高分子の主鎖中に取り込まれた硫酸イオン等のアニオンが脱離することもある。このようにして、蓄電が行われる。
When electricity is stored in the thus configured photovoltaic battery, as shown in FIG. 3A, the photovoltaic cell 1 is irradiated with light such as sunlight while the
一方、放電を行う場合には、図３Ｂに示すように、スイッチ５を導通の状態とする。この結果、導電性高分子膜１ａに取り込まれていた水素イオン（プロトン）が電解液３中に放出されたり、硫酸イオン等のアニオンが高分子の主鎖中に取り込まれたりする。これらに伴い電流が発生する。
On the other hand, when discharging, the
このように、本実施形態では、光発電を行う光触媒粒子１ｂが、蓄電を行う導電性高分子膜１ａ中に分散しているため、これらの間の接触面積が大きい。従って、従来の２電極の光蓄電電極と比較して、高い性能を得ることができる。 Thus, in this embodiment, since the photocatalyst particles 1b that perform photovoltaic power generation are dispersed in the conductive polymer film 1a that stores electricity, the contact area between them is large. Therefore, high performance can be obtained as compared with the conventional two-electrode optical storage electrode.
次に、光蓄電電極１を製造する方法について説明する。図４は、光蓄電電極１を製造する第１の方法を示す模式図であり、図５は、光蓄電電極１を製造する第２の方法を示す模式図である。 Next, a method for manufacturing the optical storage electrode 1 will be described. FIG. 4 is a schematic diagram showing a first method for manufacturing the optical storage electrode 1, and FIG. 5 is a schematic diagram showing a second method for manufacturing the optical storage electrode 1.
第１の方法では、先ず、基板１１の表面に塩化第２鉄又は過硫酸アンモニウム等の酸化剤を塗布し、これを乾燥させることにより、酸化剤層１２を形成する。次に、基板１１の酸化剤層１２側に筒１６を密着させ、筒１６の上部から光触媒粒子１３を懸濁させた導電性モノマーを含有するモノマー溶液１５を注ぎ、暗中に４時間〜５時間程度放置する。これにより、図４に示すように、基板１１上に光触媒粒子１ｂが沈殿すると共に、酸化剤層１２が水分を含んで重合開始剤として機能するようになる。この結果、酸化剤層１２の作用により導電性モノマーが重合し、光触媒粒子１３を内包する導電性高分子膜１４が形成される。導電性高分子膜１４が導電性高分子膜１ａに相当し、光触媒粒子１３が光触媒粒子１ｂに相当し、基板１１が基板１ｃに相当し、これらから光蓄電電極１が構成される。
In the first method, first, an oxidizing agent such as ferric chloride or ammonium persulfate is applied to the surface of the substrate 11 and dried to form the oxidizing agent layer 12. Next, the cylinder 16 is brought into close contact with the oxidant layer 12 side of the substrate 11, and a
第２の方法では、先ず、導電性基板２１に筒１６を密着させ、筒１６の上部から光触媒粒子１３を懸濁させた導電性モノマーを含有するモノマー溶液１５を注ぎ、暗中に４時間〜５時間程度放置する。これにより、図５に示すように、導電性基板２１上に光触媒粒子１ｂが沈殿する。次いで、モノマー溶液１５中に電極２２を挿入し、電極２２を負極とし、導電性基板２１を正極として、これらの間に定電流を流す。この結果、光触媒粒子１３を内包する導電性高分子膜１４が形成される。導電性高分子膜１４が導電性高分子膜１ａに相当し、光触媒粒子１３が光触媒粒子１ｂに相当し、導電性基板２１が基板１ｃに相当し、これらから光蓄電電極１が構成される。
In the second method, first, the tube 16 is brought into close contact with the conductive substrate 21, and the
このように、第１及び第２の方法のいずれにおいても、光蓄電電極１を室温下で製造することができる。つまり、加熱炉等を用いずとも光蓄電電極１を製造することができる。また、製造に際して大型化を阻害する要因はないので、設備さえ整えば、面積が大きい光蓄電電極１を容易に製造することが可能である。 Thus, in either of the first and second methods, the optical storage electrode 1 can be manufactured at room temperature. That is, the optical storage electrode 1 can be manufactured without using a heating furnace or the like. Moreover, since there is no factor which inhibits an enlargement in manufacture, it is possible to easily manufacture the photoelectric storage electrode 1 having a large area as long as equipment is prepared.
なお、上述の光蓄電池では、パッケージ７内に電解液３が充填されているが、図６に示すように、電解液３を用いずに、光蓄電電極１と対極２との間に固体電解質６を配置してもよい。固体電解質６としては、例えば、プロトン伝導性を有するパーフルオロスルフォン酸等のフッ素系ポリマー等を用いることができる。この場合、光蓄電池の小型化及びフィルム化が可能となる。また、固体電解質６の代わりにイオン性液体を用いてもよい。イオン性液体としては、例えば、ジメチルイミダゾリウム等のアルキルイミダゾリウム塩類等を用いることができる。
In the above-described photovoltaic battery, the
ここで、本願発明者等が行った実験の結果について説明する。 Here, the results of experiments conducted by the present inventors will be described.
（第１の実験）
第１の実験では、先ず、上述の光蓄電池と同様の構成の光蓄電池を作製した。導電性高分子膜１ａとしてポリアニリン膜を用い、光触媒粒子１ｂとしてＴｉＯ2粒子を用い、対極２として炭素繊維を用い、電解液３として希硫酸を用いた。希硫酸の濃度は、１ｍｏｌ／ｄｍ3とした。そして、７２００秒間の光照射を行った後の放電電流を測定した。また、光照射を行わずに自己放電を生じさせた場合の自己電流を測定した。この結果を図７に示す。
(First experiment)
In the first experiment, first, an optical storage battery having the same configuration as the above-described optical storage battery was produced. A polyaniline film was used as the conductive polymer film 1a, TiO 2 particles were used as the photocatalyst particles 1b, carbon fibers were used as the
図７に示すように、光照射を行った場合の放電電流（○）が自己電流（●）よりも高かった。このことは、光蓄電電極により蓄電が行われたことを証明している。 As shown in FIG. 7, the discharge current (◯) in the case of light irradiation was higher than the self current (●). This proves that power storage was performed by the optical power storage electrode.
（第２の実験）
第２の実験では、第１の実験で作製した光蓄電池を用いて、光の照射時間と蓄電された電荷の量との関係を調べた。なお、蓄電された電荷の量としては、光照射を行った場合に放電された総電荷量から光照射を行わなかった場合に自己放電された総電荷量を減算して得られる電荷量を求めた。この結果を図８に示す。
(Second experiment)
In the second experiment, the relationship between the irradiation time of light and the amount of stored charge was examined using the photovoltaic battery produced in the first experiment. As the amount of stored charge, the amount of charge obtained by subtracting the total amount of self-discharged when no light irradiation was performed from the total amount of charge discharged when light irradiation was performed was obtained. It was. The result is shown in FIG.
図８に示すように、光照射時間の増加に伴って光蓄電電化量が増加した。このことは、作製した光蓄電池が正常に動作したことを証明している。 As shown in FIG. 8, the amount of photoelectric storage increased with increasing light irradiation time. This proves that the produced photovoltaic battery operated normally.
（第３の実験）
第３の実験では、第１の実験で作製した光蓄電池を用いて、導電性高分子膜１ａを構成するポリアニリンに含まれる窒素原子の状態を分析した。図９に示すように、ポリアニリンに含まれる窒素原子は、結合状態が相違するイミン基窒素、アミン基窒素及びイオン化窒素の３種の状態をとり得る。第３の実験では、Ｘ線光電子分光法によりこれらの３種の状態の各比率を分析した。この結果を図１０に示す。
(Third experiment)
In the third experiment, the state of nitrogen atoms contained in the polyaniline constituting the conductive polymer film 1a was analyzed using the photovoltaic battery produced in the first experiment. As shown in FIG. 9, the nitrogen atom contained in polyaniline can take three types of states, imine group nitrogen, amine group nitrogen, and ionized nitrogen, which have different bonding states. In the third experiment, each ratio of these three states was analyzed by X-ray photoelectron spectroscopy. The result is shown in FIG.
図１０に示すように、側鎖に水素をもたないイミン基窒素の比率が光照射時間の増加に伴って減少した。また、イオン化窒素の減少量とアミン基窒素の増加量がほぼ等しかった。このことは、光照射時間の増加に伴って、水素イオン（プロトン）がポリアニリンの主鎖に取り込まれていることを示している。 As shown in FIG. 10, the ratio of the imine group nitrogen having no hydrogen in the side chain decreased with increasing light irradiation time. In addition, the decrease amount of ionized nitrogen and the increase amount of amine group nitrogen were almost equal. This indicates that hydrogen ions (protons) are incorporated into the main chain of polyaniline as the light irradiation time increases.
１：光蓄電電極
１ａ：導電性高分子膜
１ｂ：光触媒粒子
１ｃ：基板
２：対極
３：電解液
４：負荷
５：スイッチ
６：固体電解質
７：パッケージ
１１：基板
１２：酸化物層
１３：光触媒粒子
１４：導電性高分子層
１５：モノマー溶液
１６：筒
２１：導電性基板
２２：電極
1: Photoelectric storage electrode 1a: Conductive polymer film 1b: Photocatalyst particles 1c: Substrate 2: Counter electrode 3: Electrolyte solution 4: Load 5: Switch 6: Solid electrolyte 7: Package 11: Substrate 12: Oxide layer 13: Photocatalyst Particle 14: Conductive polymer layer 15: Monomer solution 16: Tube 21: Conductive substrate 22: Electrode
Claims (2)
対極と、
前記光蓄電電極と前記対極との間に設けられた電解質と、
前記光蓄電電極と前記対極との接続を切り替えるスイッチと、
を有し、
前記光蓄電電極は、
導電性高分子膜と、
前記導電性高分子膜内に分散し、光が照射されると前記電解質と前記導電性高分子膜との間に酸化還元反応を誘発する複数の光触媒粒子と、
を有し、
前記スイッチがＯＦＦの状態で光が照射されると、少なくとも前記電解質から陽イオンを前記導電性高分子膜内に取り込むかもしくは前記導電性高分子膜内から陰イオンを前記電解質に放出し、その後、光が照射されていない状態で前記スイッチがＯＮの状態にされると、少なくとも前記取り込まれた陽イオンを前記電解質に放出するかもしくは前記放出した陰イオンを前記導電性高分子膜内に取り込むことを特徴とする光蓄電池。 A light storage electrode;
With the counter electrode,
An electrolyte provided between the photoelectric storage electrode and the counter electrode;
A switch for switching the connection between the optical storage electrode and the counter electrode;
Have
The photoelectric storage electrode is
A conductive polymer film;
A plurality of photocatalyst particles to induce a redox reaction between the conductive polymer film is dispersed in a light is irradiated to the electrolyte the conductive polymer film,
I have a,
When light is irradiated in a state where the switch is OFF, at least a cation is taken into the conductive polymer film from the electrolyte or an anion is released from the conductive polymer film to the electrolyte, and then When the switch is turned on in a state where no light is irradiated, at least the taken-in cation is released into the electrolyte or the released anion is taken into the conductive polymer film. A photovoltaic battery characterized by that.
導電性モノマーを含有する溶液と光触媒粒子とを混合する工程と、
前記導電性モノマーを重合することにより、前記光触媒粒子を内包する導電性高分子膜を形成する工程と、
を有することを特徴とする光蓄電電極の製造方法。 It is a manufacturing method of the optical storage electrode which the optical storage battery according to claim 1 has,
Mixing a solution containing a conductive monomer and photocatalyst particles;
Forming a conductive polymer film containing the photocatalytic particles by polymerizing the conductive monomer;
The manufacturing method of the optical storage electrode characterized by having.
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