JP5647366B1 - シリコンナノ粒子を担持させた負極活物質及びその製造方法 - Google Patents
シリコンナノ粒子を担持させた負極活物質及びその製造方法 Download PDFInfo
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- JP5647366B1 JP5647366B1 JP2014082279A JP2014082279A JP5647366B1 JP 5647366 B1 JP5647366 B1 JP 5647366B1 JP 2014082279 A JP2014082279 A JP 2014082279A JP 2014082279 A JP2014082279 A JP 2014082279A JP 5647366 B1 JP5647366 B1 JP 5647366B1
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- 239000010703 silicon Substances 0.000 claims abstract description 47
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 38
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Images
Classifications
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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
- 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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- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
(1)重量エネルギー密度が、Ni/Cd電池の約3倍、Ni/MH電池の約2倍あり、体積エネルギー密度は、Ni/Cd電池及びNi/MH電池の約2倍近くある。
(2)電圧が、Ni/Cd電池及びNi/MH電池の3倍以上ある。
(3)大電流放電が可能である。
(4)自己放電が、Ni/Cd電池及びNi/MH電池の約5分の1で、保存性に優れる。
(5)鉛、カドミウム等の有害物質を含まない。
(6)メモリー効果(電池を使い切らないで、次の充電を行うと放電容量が低下する現象)がない。
(7)充放電を500回以上繰り返すことができ、サイクル寿命が長い。
(8)急速充電が可能である。
従って、現在では、携帯電話、携帯情報端末、ノートパソコン、デジタルカメラ・ビデオ等の各種携帯電子機器をはじめ、ハイブリッド自動車、電気自動車、電動自転車、ロボット等の産業機器、工場、ビル、集合住宅、家庭等の定置用畜電池としても幅広く利用されている。
2マクロ孔
3メソ孔
4ミクロ孔
5物理蒸着槽
6蒸着源
7撹拌槽
8プロペラ
9モーター
10シャッター
11不活性ガス導入系
12真空排気系
Claims (6)
- 物理蒸着槽内に、前記物理蒸着槽上部に設けられた蒸発源、前記蒸発源下部に設けられた前記蒸発源から放出される蒸発物質が堆積する母材を投入する撹拌槽、前記撹拌槽内に設けられた前記蒸発物質が前記母材に均一に堆積するための撹拌機を少なくとも設置し、前記母材として活性炭を、前記蒸発源としてシリコンを用い、前記活性炭を撹拌しながら前記シリコンの蒸発物質を堆積することによって、前記活性炭の内部細孔表面にシリコンナノ粒子が担持されたことを特徴とする負極活物質。
- 物理蒸着槽内に、前記物理蒸着槽上部に設けられた蒸発源、前記蒸発源下部に設けられた前記蒸発源から放出される蒸発物質が堆積する母材を投入する撹拌槽、前記撹拌槽内に設けられた前記蒸発物質が前記母材に均一に堆積するための撹拌機を少なくとも設置し、前記母材として溶媒溶解性物質を、前記蒸発源としてシリコンを用い、前記溶媒溶解性物質を撹拌しながら前記溶媒溶解性物質の表面に前記シリコンの蒸発物質を堆積することによってシリコンナノ粒子を担持した後、前記シリコンナノ粒子が担持された前記溶媒溶解性物質と活性炭とを溶媒中で混合することによって、前記活性炭の内部細孔表面に前記シリコンナノ粒子が担持されたことを特徴とする負極活物質。
- 前記溶媒溶解性物質が水溶性物質であることを特徴とする請求項2に記載の負極活物質。
- 前記溶媒溶解性物質がアルコール溶解性物質であることを特徴とする請求項2に記載の負極活物質。
- 物理蒸着槽内に、前記物理蒸着槽上部に設けられた蒸発源、前記蒸発源下部に設けられた前記蒸発源から放出される蒸発物質が堆積する母材を投入する撹拌槽、前記撹拌槽内に設けられた前記蒸発物質が前記母材に均一に堆積するための撹拌機を少なくとも設置し、前記母材として活性炭を、前記蒸発源としてシリコンを用い、前記活性炭を撹拌しながら前記活性炭の内部細孔表面に前記シリコンの蒸発物質を堆積することによってシリコンナノ粒子が担持されることを特徴とする負極活物質の製造方法。
- 物理蒸着槽内に、前記物理蒸着槽上部に設けられた蒸発源、前記蒸発源下部に設けられた前記蒸発源から放出される蒸発物質が堆積する母材を投入する撹拌槽、前記撹拌槽内に設けられた前記蒸発物質が前記母材に均一に堆積するための撹拌機を少なくとも設置し、前記母材として溶媒溶解性物質を、前記蒸発源としてシリコンを用い、前記溶媒溶解性物質を撹拌しながら前記溶媒溶解性物質の表面に前記シリコンの蒸発物質を堆積することによってシリコンナノ粒子を担持した後、前記シリコンナノ粒子が担持された前記溶媒溶解性物質と活性炭とを溶媒中で混合することによって、前記活性炭の内部細孔表面に前記シリコンナノ粒子が担持されることを特徴とする負極活物質の製造方法。
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016132608A (ja) * | 2015-01-22 | 2016-07-25 | 株式会社豊田中央研究所 | 複合体及びその製造方法 |
US10424786B1 (en) | 2018-12-19 | 2019-09-24 | Nexeon Limited | Electroactive materials for metal-ion batteries |
US10508335B1 (en) | 2019-02-13 | 2019-12-17 | Nexeon Limited | Process for preparing electroactive materials for metal-ion batteries |
US10964940B1 (en) | 2020-09-17 | 2021-03-30 | Nexeon Limited | Electroactive materials for metal-ion batteries |
US11011748B2 (en) | 2018-11-08 | 2021-05-18 | Nexeon Limited | Electroactive materials for metal-ion batteries |
US11165054B2 (en) | 2018-11-08 | 2021-11-02 | Nexeon Limited | Electroactive materials for metal-ion batteries |
WO2022163595A1 (ja) * | 2021-01-29 | 2022-08-04 | パナソニックIpマネジメント株式会社 | 二次電池用負極活物質および二次電池 |
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