JP2010231969A - 固体二次電池、固体二次電池の製造方法 - Google Patents
固体二次電池、固体二次電池の製造方法 Download PDFInfo
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
【解決手段】本発明の固体二次電池1は、一対の導電層102,108の間に固体電解質層105を挟持してなる第1単位電池層Aと、一対の導電層112,118の間に固体電解質層115を挟持してなる第2単位電池層Bと、を接着剤を介して基板120上に複数積層し、第1単位電池層Aと第2単位電池層Bの正極側の導電層102,112同士を第1導電部材122で接続し、負極側の導電層108,118同士を第2導電部材123で接続してなることを特徴とする。
【選択図】図9
Description
アモルフアスシリコン中には、水素が含有されていて良い。この場合、水素の含有量は、1at%以上程度であるのが好ましく、2〜20 at%程度であるのがより好ましい。このように、水素が所定量含有されていると、光の照射によって水素が放出され、第1の分離層20に内圧が発生し、それが剥離を促す力となる。アモルフアスシリコン中の水素の含有量は、成膜条件、例えばCVDにおけるガス圧、ガス雰囲気、ガス流量、温度、基板温度、あるいはプラズマ生成の際の投入パワー等の条件を適宜設定することにより調整することができる。
酸化ケイ素としては、SiO、SiO2、Si302が挙げられ、ケイ酸化合物としては、例えばK2SiO3、Li2SiO3、CaSiO3、ZrSiO4、Na2SiO3が挙げられる。酸化チタンとしては、TiO、Ti203、TiO2が挙げられ、チタン酸化合物としては、例えば、BaTiO4、BaTiO3、Ba2Ti9020、BaTi5011、CaTiO3、SrTiO3、PbTiO3、MgTiO3、ZrTiO2、SnTiO4、A12TiO5、FeTiO3が挙げられる。酸化ジルコニウムとしては、ZrO2が挙げられ、ジルコン酸化合物としては、例えばBaZrO3、ZrSiO4、PbZrO3、MgZrO3、K2ZrO3が挙げられる。
有機高分子材料としては、高分子の主鎖上に、一CH−、−CO−(ケトン)、−CONH−(アミド)、−NH一(アミノ)、−COO−(エステル)、−N=N−(アゾ)、−CH=N−(イミド)を有するものが挙げられる。また、光吸収量を向上させるためにベンゼンやナフタレンなどの芳香族炭化水素が組み込まれた有機高分子も利用することができる。このような有機高分子材料の具体例としては、例えば、ポリエチレン、ポリプロピレンのようなポリオレフイン、ポリイミド、ポリアミド、ポリエステル、ポリメチルメタクリレート(PMMA)、ポリフェニレンサルフアイド(PPS)、ポリエーテルサルフォン(PES)、ポリエステルテレフタレート(PET)、エポキシ樹脂がある。
金属としては、例えば、Al、Li、Ti、Mn、In、Sn、Y、La、Ce、Nd、Pr、Gd、Smまたはこれらのうち少なくとも1種を含む合金が挙げられる。また、これらの金属をアモルファスシリコン膜上に積層した多層膜を第1分離層101として用いることもできる。
Claims (4)
- 一対の導電層の間に固体電解質層を挟持してなる単位電池層を接着剤を介して基板上に複数積層し、複数の前記単位電池層の正極側の導電層同士を第1導電部材で接続し、負極側の導電層同士を第2導電部材で接続してなることを特徴とする固体二次電池。
- 前記基板はプラスチックフィルムからなり、前記基板と前記単位電池層とは接着剤を介して接着されていることを特徴とする請求項1に記載の固体二次電池。
- 一対の導電層の間に固体電解質層を挟持してなる単位電池層を複数有する固体二次電池の製造方法であって、
第1基板上に第1分離層を形成する第1工程と、
前記第1分離層上に第1固体電解質層を含む第1単位電池層を形成する第2工程と、
第2基板上に第2固体電解質層を含む第2単位電池層を形成する第3工程と、
前記第1単位電池層の上面と前記第2単位電池層の上面とを接着剤で接着する第4工程と、
前記第1分離層に光を照射し、前記第1分離層の層内又は前記第1分離層と接する他の層との境界面で剥離を生じさせ、前記第1基板と前記第1単位電池層とを分離する第5工程と、
前記第1単位電池層と前記第2単位電池層の正極側の導電層同士を第1導電部材で接続し、負極側の導電層同士を第2導電部材で接続する第6工程と、を有することを特徴とする固体二次電池の製造方法。 - 前記第2基板は第2分離層を有し、
前記第3工程において前記第2単位電池層は前記第2分離層上に形成され、
前記第5工程と前記第6工程との間に、
前記第2基板、前記第2単位電池層及び前記第1単位電池層が接着された状態でこれらを2分割する第7工程と、
前記2分割された各々の前記第1単位電池層の上面同士を接着する第8工程と、
前記第2基板のどちらか一方の前記第2分離層に光を照射し、前記第2分離層の層内又は前記第2分離層と接する他の層との境界面で剥離を生じさせ、前記どちらか一方の前記第2基板を分離する第9工程と、を有することを特徴とする請求項3に記載の固体二次電池の製造方法。
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