JP2017212430A - 二次電池の製造方法 - Google Patents
二次電池の製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 239000004065 semiconductor Substances 0.000 claims abstract description 167
- 238000000034 method Methods 0.000 claims abstract description 108
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 100
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 100
- 230000008569 process Effects 0.000 claims abstract description 80
- 239000012212 insulator Substances 0.000 claims abstract description 30
- 238000004544 sputter deposition Methods 0.000 claims description 14
- 229920002545 silicone oil Polymers 0.000 claims description 12
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical group [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
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- 238000010030 laminating Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 24
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 14
- 239000010408 film Substances 0.000 description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 238000000151 deposition Methods 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 7
- 239000002243 precursor Substances 0.000 description 7
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 7
- 229910001887 tin oxide Inorganic materials 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
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- 238000001451 molecular beam epitaxy Methods 0.000 description 3
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- MCCIMQKMMBVWHO-UHFFFAOYSA-N octadecanoic acid;titanium Chemical compound [Ti].CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCC(O)=O MCCIMQKMMBVWHO-UHFFFAOYSA-N 0.000 description 2
- 230000001443 photoexcitation Effects 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical group [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- UNRNJMFGIMDYKL-UHFFFAOYSA-N aluminum copper oxygen(2-) Chemical compound [O-2].[Al+3].[Cu+2] UNRNJMFGIMDYKL-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
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- 230000001186 cumulative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
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- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000001552 radio frequency sputter deposition Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
【解決手段】本願発明に係る二次電池の製造方法は、第一電極12と、n型金属酸化物半導体からなるn型金属酸化物半導体層14と、n型金属酸化物半導体と絶縁体からなる充電層16と、絶縁体を主成分とする中間絶縁層18と、p型金属酸化物半導体からなるp型金属酸化物半導体層22と、第二電極24と、をこの順序で積層した後に、第一電極12を基準として第一電極12と第二電極24との間に正電圧を印加する第一のプロセスと、第一電極12を基準として第一電極12と第二電極24との間に0Vを印加する第二のプロセスと、をこの順序でくり返すプロセスを第1単位サイクルとし、予め定められた数の第1単位サイクルを繰り返す。
【選択図】図3
Description
その方法は、第一電極12、n型金属酸化物半導体層14、充電層16、中間絶縁層18、p型金属酸化物半導体層22と第二電極24とを、この順序に積層した後に、この積層体を35〜65パーセント以内の湿度の環境内に配置させる。次に、第一電極12と第二電極24の間に、電圧源から正電圧と0Vのサイクル電圧繰り返し印加する方法、及び電圧源から正電圧と負電圧のサイクル電圧繰り返し印加する方法である。以下、混在層を電気的に形成する方法を詳細に説明する。
図2は、正と0Vのサイクル電圧印加前後の酸化物半導体二次電池10の構造を示す。
以下、混在層20を備える酸化物半導体二次電池10の製造方法を、フローチャートを用いて詳細に説明する。
図4は、サイクル電圧印加システムの実施回路の一例を示す。
図5は、正と0Vの電圧波形40−1の一例を示す。
酸化物半導体二次電池10の作製にあたっては、絶縁性物質であるガラスを基板とした。まず、第一電極12は、クロムをターゲットとしてスパッタデポジション法を用いて、100〜300nmの膜厚で成膜した。製造装置としては、RFスパッタリング装置を用いた。なお、第一電極12は電流を流しやすくするため、例えば、100μΩ・cm以下の抵抗率を有する材料とすることが好ましい。
12:第一電極
14:n型金属酸化物半導体層
16:充電層
18:中間絶縁層
22:p型金属酸化物半導体層
24:第二電極
30:電圧源
32:電圧計
34:電流計
36:制御装置
38:抵抗
39:被電圧印加二次電池
40,40−1,40−2,40−3、40−4、40−5:電圧波形
Claims (15)
- 第一電極と、
n型金属酸化物半導体からなるn型金属酸化物半導体層と、
n型金属酸化物半導体と絶縁体からなる充電層と、
絶縁体を主成分とする中間絶縁層と、
p型金属酸化物半導体からなるp型金属酸化物半導体層と、
第二電極と、
をこの順序で積層した後に、
前記第一電極を基準として前記第一電極と前記第二電極との間に正電圧を印加する第一のプロセスと、
前記第一電極を基準として前記第一電極と前記第二電極との間に0Vを印加する第二のプロセスを第1単位サイクルとし、予め定められた数の前記第1単位サイクルを繰り返すこと、
を特徴とする酸化物半導体二次電池の製造方法。 - 前記第一電極をグランド接続した場合、前記第一のプロセスにおける前記第二電極に印加する正電圧の値は、少なくとも前記酸化物半導体二次電池の充電電圧以上の値を含むこと、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記第一のプロセスには、前記第一電極と前記第二電極との間に、正電圧が印加された状態を一定時間保持するプロセスが含まれ、
前記第二のプロセスには、前記第一電極と前記第二電極との間に0Vが印加された状態を一定時間保持するプロセスが含まれていること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記第一のプロセスにおいて、
前記第一電極と前記第二電極との間に印加する正電圧は、サイクル毎に異なる電圧値が設定されること、
を特徴とする請求項3に記載の酸化物半導体二次電池の製造方法。 - 前記第一のプロセスにおいて、
前記第一電極と前記第二電極との間を流れる電流の値が、前記第一のプロセスで予め定められている電流値を超えないように、前記第一電極と前記第二電極との間に印加する正電圧を各プロセスで制御すること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。
- 前記第一のプロセスにおける、正電圧を印加する正電圧印加時間は、前記酸化物半導体二次電池の放電容量の増加とともに長くすること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 正電圧を印加する正電圧印加時間は、
前記酸化物半導体二次電池の電圧値が予め定められた設定電圧値に達するまでの時間であること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記第一のプロセス及び前記第二のプロセスに加えて、
前記酸化物半導体二次電池の放電容量を測定する第三のプロセスを有し、
前記第1単位サイクルを、所定のサイクル数繰り返した後に、前記第三のプロセスを実行し、
前記酸化物半導体二次電池の放電容量が予め定められた閾値以上であることが測定された場合に電圧の印加を終了させること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記第一のプロセス及び前記第二のプロセスに加えて、
前記酸化物半導体二次電池の放電容量を測定する第三のプロセスと、
前記第三のプロセスで測定された放電容量に基づき、前記酸化物半導体二次電池の放電容量の増加率を所定の時間間隔で算出する第四のプロセスと、
を有し、
前記第1単位サイクルを、所定のサイクル数繰り返した後に、前記第三のプロセス、及び前記第四のプロセスを実行し、
前記放電容量の増加率が予め定められた閾値以下である場合に電圧の印加を終了させること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記中間絶縁層は、シリコーンオイル又は前記抵抗調整剤が添加されたシリコーンオイルを、前記充電層の表面上に塗布した後、焼成し、焼成後に紫外線を照射してUV硬化させることにより形成すること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記中間絶縁層は、シリコン(Si)をターゲットとするスパッタリングにより前記充電層の上に形成すること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記中間絶縁層の絶縁体は、SiOx(0≦x≦2)であること、
を特徴とする請求項1に記載の酸化物半導体二次電池の製造方法。 - 前記p型金属酸化物半導体は、酸化ニッケル(NiO)であること、
を特徴とする請求項1又は13に記載の酸化物半導体二次電池の製造方法。 - 第一電極と、
n型金属酸化物半導体からなるn型金属酸化物半導体層と、
n型金属酸化物半導体と絶縁体からなる充電層と、
絶縁体を主成分とする中間絶縁層と、
p型金属酸化物半導体からなるp型金属酸化物半導体層と、
第二電極と、
をこの順序で積層した後に、
前記第一電極を基準として前記第一電極と前記第二電極との間に正電圧を印加する第五のプロセスと、
前記第一電極を基準として前記第一電極と前記第二電極との間に負電圧を印加する第六のプロセスとを第2単位サイクルとし、予め定められた数の前記第2単位サイクルを繰り返すこと、
を特徴とする酸化物半導体二次電池の製造方法。 - 湿度が35〜65パーセント以内の湿度環境下で、前記第一電極と前記第二電極との間に電圧を印加すること、
を特徴とする請求項1又は14に記載の酸化物半導体二次電池の製造方法。
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