JP2014529876A - 多孔質電流コレクタを有する半固体電極セル及び製造方法 - Google Patents
多孔質電流コレクタを有する半固体電極セル及び製造方法 Download PDFInfo
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Abstract
Description
[1001] 本願は、2011年9月7日に出願された発明の名称「電池製造方法」の米国仮出願第61/531,927号の優先権及び利益を主張し、その全体が参照により本出願に組み込まれる。
[1045] 一部の実施形態では、陽極液及び陰極液の半固体が、作用電極として働く単一媒体中においてイオン貯蔵/イオン源、電子伝導体、及びイオン伝導体としてまとまって機能する物質を形成する手段を与える。
非水性リチウムチタン酸塩スピネル陽極半固体の調製
[1101] TURBULAシェーカーミキサーを使用して先ず0.7gのLi4Ti5O12及び乾燥状態の0.44gのカーボンブラックを1時間にわたり混合することにより、アルキル炭酸塩の混合物中のLiPF6からなる体積84%の非水性電解質中に、体積8%リチウムチタニウム酸化物(Li4Ti5O12)及び伝導性添加物としての体積8%のカーボンブラックを含む懸濁液を調製した。次に2.5mlの電解質を加え、この混合物を1時間にわたり超音波分解した。
[1102] 体積12%のリチウムコバルト酸化物(LiCoO2)、体積8%のカーボンブラック、及び残余としてのアルキル炭酸塩中のLiPF6からなる電解質を含む懸濁液を調製した。TURBULAミキサーを用いて1.05gのリチウムコバルト酸化物を0.22gの炭素と1時間にわたり混合した。続いて、この電解質を半固体懸濁液の残りにあたる適量分だけ加え、混合物を1時間にわたり超音波分解した。
Claims (42)
- 陽極と、
非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体陰極であって、前記半固体陰極が多孔質電流コレクタを実質的にカプセル化するように前記半固体陰極内に配置された多孔質電流コレクタを有する半固体陰極と、
前記陽極と前記半固体陰極との間に配置されたセパレータと、を備える電気化学セル。 - 前記多孔質電流コレクタの少なくとも一部が前記セパレータを越えて延びてリードを形成する、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタが約50ミクロン〜約5000ミクロンの厚さを有する、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタが、剛体であり、かつ、支持されていない状態において実質的に平坦である、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタが、ワイヤスクリーン、展開金属構造、網状材料、メッシュ、穿孔金属、加工マイクロトラス、及び気泡の少なくとも1つから形成される、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタが金属である、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタが非金属である、請求項1に記載の電気化学セル。
- 前記多孔質電流コレクタがアルミニウムを含む、請求項1に記載の電気化学セル。
- セパレータによって少なくとも部分的に規定される陽極空洞と、
前記陽極空洞内に配置されて前記陽極空洞を実質的に満たすように構成された多孔質電流コレクタと、
前記電流コレクタ内に少なくとも部分的に埋め込まれた前記陽極空洞内に配置された陽極半固体懸濁液と、
前記セパレータによって少なくとも部分的に規定される陰極空洞と、
前記陰極空洞内に配置されて前記陰極空洞を実質的に満たすように構成された多孔質電流コレクタと、
前記電流コレクタ内に少なくとも部分的に埋め込まれた前記陰極空洞内に配置された陰極半固体懸濁液と、を備える電気化学セル。 - 前記陽極空洞内に配置される前記多孔質電流コレクタの少なくとも一部が、前記セパレータを越えて前記陽極空洞の外に延びて陽極リードを形成する、請求項9に記載の電気化学セル。
- 前記陰極空洞内に配置される前記多孔質電流コレクタの少なくとも一部が、前記セパレータを越えて前記陰極空洞の外に延びて陰極リードを形成する、請求項9に記載の電気化学セル。
- 前記多孔質電流コレクタの少なくとも1つが約50ミクロン〜約5000ミクロンの厚さを有する、請求項9に記載の電気化学セル。
- 前記多孔質電流コレクタの少なくとも1つが、剛体であり、かつ、支持されていない状態において実質的に平坦である、請求項9に記載の電気化学セル。
- 電子伝導性の多孔質基板と、
前記多孔質基板内に埋め込まれた半固体電極物質であって、非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体電極物質と、を備える電極。 - 前記多孔質基板が、剛体であり、かつ、支持されていない状態において実質的に平坦である、請求項14に記載の電極。
- 前記多孔質基板が約50ミクロン〜約5000ミクロンの厚さを有する、請求項14に記載の電極。
- 前記多孔質基板の少なくとも一部が、折り返されて圧縮されて一体電極リードを形成する、請求項14に記載の電極。
- 電気化学セルを製造する方法であって、
陽極半固体懸濁液を陽極空洞に送り込むステップであって、前記陽極空洞は、当該陽極空洞内に配置された電子伝導性を有する第1多孔質電流コレクタを有するステップと、
陰極半固体懸濁液を陰極空洞に送り込むステップであって、前記陰極空洞は、当該陰極空洞内に配置された電子伝導性を有する第2多孔質電流コレクタを有するステップと、
前記陽極空洞と前記陰極空洞との間にセパレータを配置するステップと、
前記陽極空洞及び前記陰極空洞を密封するステップと、を含む、方法。 - 前記陽極空洞に圧力を加えて、前記陽極半固体を前記第1電流コレクタの小孔中に埋め込むステップをさらに含む、請求項18に記載の方法。
- 前記陰極空洞に圧力を加えて、前記陰極半固体を前記第2電流コレクタの小孔中に埋め込むステップをさらに含む、請求項18に記載の方法。
- 前記送り込み中に、前記陽極空洞及び前記陰極空洞の少なくとも1つに機械的振動を加えるステップをさらに含む、請求項18に記載の方法。
- 前記第1電流コレクタの少なくとも一部分を一体陽極リードに形成するステップをさらに含む、請求項18に記載の方法。
- 前記形成するステップが、前記第1電流コレクタの一部分をそれ自体の上に折り返すステップを含む、請求項22に記載の方法。
- 前記形成するステップが、前記第1電流コレクタの一部分に圧力を加えるステップを含む、請求項22に記載の方法。
- 前記第2電流コレクタの少なくとも一部分を一体陰極リードに形成するステップをさらに含む、請求項18に記載の方法。
- 前記形成するステップが、前記第2電流コレクタの一部分をそれ自体の上に折り返すステップを含む、請求項25に記載の方法。
- 前記形成するステップが、前記第2電流コレクタの一部分に圧力を加えるステップを含む、請求項25に記載の方法。
- 電極を形成する方法であって、
非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体電極物質を電子伝導性基板に送り込むステップと、
前記半固体電極物質の温度を、前記非水性液体電解質の凝固点より下に下げるステップと、を含む、方法。 - 前記電子伝導性基板が多孔質である、請求項28に記載の方法。
- 電極を形成する方法であって、
半固体電極物質を空洞に送り込むステップであって、前記半固体組成は、非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含むステップと、
前記半固体電極物質の温度を、前記非水性液体電解質の凝固点より下に下げて固体電極を形成するステップと、を含む、方法。 - 前記固体電極を電流コレクタ上に配置するステップをさらに含む、請求項30に記載の方法。
- 前記電流コレクタが多孔質である、請求項31に記載の方法。
- 前記電流コレクタが電子伝導性の箔である、請求項31に記載の方法。
- 陰極と、
非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体陽極であって、前記半固体陽極が前記電流コレクタを実質的にカプセル化するように前記半固体電極内に配置された多孔質電流コレクタを有する半固体陽極と、
前記陰極と前記半固体陽極との間に配置されたセパレータと、を備える電気化学セル。 - 非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体陰極であって、前記半固体陰極が前記電流コレクタを実質的にカプセル化するように前記半固体陰極内に配置された多孔質電流コレクタを有する半固体陰極と、
非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む半固体陽極であって、前記半固体陽極が前記電流コレクタを実質的にカプセル化するように前記半固体陽極内に配置された多孔質電流コレクタを有する半固体陽極と、
前記半固体陰極と前記半固体陽極との間に配置されたセパレータと、を備える電気化学セル。 - 約200ミクロン〜約2500ミクロンの第1の厚さを有する電子伝導性多孔質の電流コレクタと、
前記電流コレクタを実質的にカプセル化して第2の厚さを有する両面電極を形成するように配置されて構成される半固体電極物質であって、前記第1の厚さは前記第2の厚さの約50%を上回る、半固体電極物質と、を備える電極。 - 前記半固体電極物質が非水性液体電解質内に活性物質及び伝導性物質の懸濁液を含む、請求項36に記載の電極。
- 前記第1の厚さが前記第2の厚さの約60%を上回る、請求項36に記載の電極。
- 前記第1の厚さが前記第2の厚さの約70%を上回る、請求項38に記載の電極。
- 前記第1の厚さが前記第2の厚さの約80%を上回る、請求項39に記載の電極。
- 前記第1の厚さが前記第2の厚さの90%を上回る、請求項40に記載の電極。
- 前記第1の厚さが前記第2の厚さに実質的に等しい、請求項41に記載の電極。
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US20130055559A1 (en) | 2013-03-07 |
US20230018078A1 (en) | 2023-01-19 |
US9825280B2 (en) | 2017-11-21 |
CN104040764A (zh) | 2014-09-10 |
US10566603B2 (en) | 2020-02-18 |
US20200321601A1 (en) | 2020-10-08 |
JP6301253B2 (ja) | 2018-03-28 |
US11309531B2 (en) | 2022-04-19 |
CN104040764B (zh) | 2018-02-27 |
EP2754194B1 (en) | 2018-12-12 |
US20160190544A1 (en) | 2016-06-30 |
EP2754194A4 (en) | 2015-04-08 |
EP2754194A1 (en) | 2014-07-16 |
US11888144B2 (en) | 2024-01-30 |
WO2013036802A1 (en) | 2013-03-14 |
US9203092B2 (en) | 2015-12-01 |
WO2013036801A1 (en) | 2013-03-14 |
US20130065122A1 (en) | 2013-03-14 |
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