JP5800444B2 - 二次電池、及び二次電池の製造方法 - Google Patents
二次電池、及び二次電池の製造方法 Download PDFInfo
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- JP5800444B2 JP5800444B2 JP2014545728A JP2014545728A JP5800444B2 JP 5800444 B2 JP5800444 B2 JP 5800444B2 JP 2014545728 A JP2014545728 A JP 2014545728A JP 2014545728 A JP2014545728 A JP 2014545728A JP 5800444 B2 JP5800444 B2 JP 5800444B2
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
- Y10T29/49115—Electric battery cell making including coating or impregnating
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Description
−(NH−CS−CS−NH)…(1′)
又は、一般式(2′)
R1−(NH−CS−CS−NH)n−R2 …(2′)
で示される構造単位を有し、リチウムイオンと結合可能であるルベアン酸又はルベアン酸ポリマーを含む電池用電極を正極とし、リチウムイオンの吸蔵及び放出が可能な活物質を含む電極を負極とした非水溶液系電池が提案されている。
そして、本発明の二次電池は、前記ジチオン化合物が、一般式
ジチオン化合物は、充放電時(酸化状態及び還元状態)の安定性に優れており、酸化還元反応で二電子以上の多電子反応が可能である。そして、正極活物質層2の表面をイオン伝導体薄膜3で被覆することにより、充放電効率が向上することから、多電子反応の充放電を安定的に繰り返すことができ、高容量密度の二次電池を得ることが可能となる。
ジオン化合物も、ジチオン化合物と同様、充放電時(酸化状態及び還元状態)の安定性に優れており、酸化還元反応で二電子以上の多電子反応が可能である。そして、正極活物質層2の表面をイオン伝導体薄膜3で被覆することにより、充放電効率が向上することから、多電子反応の充放電を安定的に繰り返すことができ、高容量密度の二次電池を得ることが可能となる。
ジアミン化合物も、ジチオン化合物やジオン化合物と同様、充放電時(酸化状態及び還元状態)の安定性に優れており、酸化還元反応で二電子以上の多電子反応が可能である。そして、正極活物質層2の表面をイオン伝導体薄膜3で被覆することにより、充放電効率が向上することから、多電子反応の充放電を安定的に繰り返すことができ、高容量密度の二次電池を得ることが可能となる。
以上のようにして作製した実施例及び比較例の電池セルを、0.1mAの定電流で3時間充電し、その後、0.1mAの定電流で電圧が1.5Vに低下するまで放電し、充放電特性を調べた。
3 イオン伝導体薄膜
4 正極(第1の電極)
5 負極(第2の電極)
9 電解質溶液
Claims (9)
- 第1の電極と第2の電極との間に電解質が介在されると共に、前記第1及び第2の電極、前記電解質のうちの少なくともいずれかにリチウムを含有した二次電池であって、
前記第1及び第2の電極のうちの一方の電極は、電池電極反応で2つ以上の電子が関与する多電子系の有機化合物を主体とした電極活物質層を有すると共に、
少なくとも前記電極活物質層の表面が、リチウムを選択的に透過するイオン伝導体薄膜で被覆されてなり、
かつ、前記有機化合物は、ジチオン構造を有するジチオン化合物、ジオン構造を有するジオン化合物、及びジアミン構造を有するジアミン化合物の中から選択された少なくとも一種を構成単位中に有していることを特徴とする二次電池。 - 前記イオン伝導体薄膜は、ポリフッ化ビニリデン、ポリメタクリレート、及びトリプロピレングリコールジアクリレートの重合体の中から選択された少なくとも一種を含有していることを特徴とする請求項1記載の二次電池。
- 前記ジチオン化合物は、一般式
で表わされることを特徴とする請求項1又は請求項2記載の二次電池。 - 前記ジチオン化合物は、一般式
で表わされることを特徴とする請求項1又は請求項2記載の二次電池。 - 前記ジオン化合物は、一般式
で表わされることを特徴とする請求項1又は請求項2記載の二次電池。 - 前記ジオン化合物は、一般式
で表わされることを特徴とする請求項1又は請求項2記載の二次電池。 - 前記ジアミン化合物は、一般式
で表わされることを特徴とする請求項1又は請求項2記載の二次電池。 - 前記電極活物質が、前記電池電極反応の少なくとも放電反応における反応出発物、生成物及び中間生成物のうちのいずれかに含まれることを特徴とする請求項1乃至請求項7のいずれかに記載の二次電池。
- 第1の電極と第2の電極との間に電解質を介在した二次電池の製造方法であって、
前記第1及び第2の電極のうちの一方の電極を、多電子系の有機化合物を主体とした電極活物質層を有するように形成すると共に、前記有機化合物は、ジチオン構造を有するジチオン化合物、ジオン構造を有するジオン化合物、及びジアミン構造を有するジアミン化合物の中から選択された少なくとも一種を構成単位中に有し、
少なくとも前記電極活物質層の表面を、リチウムイオンを選択的に透過するイオン伝導体薄膜で被覆することを特徴とする二次電池の製造方法。
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JP2008147015A (ja) * | 2006-12-11 | 2008-06-26 | Honda Motor Co Ltd | 電池用電極、非水溶液系電池、および非水溶液系電池の製造方法 |
JP2011124017A (ja) * | 2009-12-08 | 2011-06-23 | Murata Mfg Co Ltd | 電極活物質及びそれを用いた二次電池 |
JP2012142297A (ja) * | 1995-06-28 | 2012-07-26 | Ube Ind Ltd | 非水二次電池 |
JP2012164480A (ja) * | 2011-02-04 | 2012-08-30 | Honda Motor Co Ltd | 電池 |
JP2013020710A (ja) * | 2011-07-07 | 2013-01-31 | Nissan Chem Ind Ltd | 電荷貯蔵材料、電極活物質、電極及び電池 |
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JP2012142297A (ja) * | 1995-06-28 | 2012-07-26 | Ube Ind Ltd | 非水二次電池 |
JP2008147015A (ja) * | 2006-12-11 | 2008-06-26 | Honda Motor Co Ltd | 電池用電極、非水溶液系電池、および非水溶液系電池の製造方法 |
JP2011124017A (ja) * | 2009-12-08 | 2011-06-23 | Murata Mfg Co Ltd | 電極活物質及びそれを用いた二次電池 |
JP2012164480A (ja) * | 2011-02-04 | 2012-08-30 | Honda Motor Co Ltd | 電池 |
JP2013020710A (ja) * | 2011-07-07 | 2013-01-31 | Nissan Chem Ind Ltd | 電荷貯蔵材料、電極活物質、電極及び電池 |
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