JP2011238602A - 蓄電装置用電極及びその作製方法 - Google Patents
蓄電装置用電極及びその作製方法 Download PDFInfo
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- JP2011238602A JP2011238602A JP2011088835A JP2011088835A JP2011238602A JP 2011238602 A JP2011238602 A JP 2011238602A JP 2011088835 A JP2011088835 A JP 2011088835A JP 2011088835 A JP2011088835 A JP 2011088835A JP 2011238602 A JP2011238602 A JP 2011238602A
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- silicon
- semiconductor film
- main component
- germanium
- metal element
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Classifications
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
- H01L29/045—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes by their particular orientation of crystalline planes
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/02—Electrodes composed of, or comprising, active material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
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- H01G9/04—Electrodes or formation of dielectric layers thereon
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- H01—ELECTRIC ELEMENTS
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
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- H01L21/02532—Silicon, silicon germanium, germanium
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
【解決手段】活物質が集電体上に設けられた蓄電装置の電極において、活物質の表面が{110}面の結晶を有する結晶性半導体膜で形成されている。なお、{110}面の結晶を有する結晶性半導体膜は、シリコンと反応してシリサイドを形成する金属元素を含有する結晶性シリコン膜でもよい。または、{110}面の結晶を有する結晶性半導体膜は、シリコンを主成分とし、シリコンと反応してシリサイドを形成する金属元素及びゲルマニウムを含有する結晶性半導体膜でもよい。
【選択図】図1
Description
本実施の形態では、本発明の一態様である蓄電装置用電極及びその作製方法について説明する。
本実施の形態の蓄電装置用電極の一形態について図5を用いて説明する。
本実施の形態では、蓄電装置の構造について、図8を用いて説明する。
本実施の形態では、実施の形態3で説明した蓄電装置の応用形態について図9を用いて説明する。
Claims (15)
- 集電体と、
前記集電体上に形成される活物質とを有し、
前記活物質の表面は、{110}面の結晶を有する結晶性半導体膜で形成されていることを特徴とする蓄電装置用電極。 - 請求項1において、前記{110}面の結晶を有する結晶性半導体膜は、金属元素を含有する結晶性シリコン膜であることを特徴とする蓄電装置用電極。
- 請求項1において、前記{110}面の結晶を有する結晶性半導体膜は、シリコンを主成分としゲルマニウム及び金属元素を含有する結晶性半導体膜であることを特徴とする蓄電装置用電極。
- 集電体と、
前記集電体上に形成される活物質とを有し、
前記活物質は、前記集電体に接するシリコンを主成分としゲルマニウムを含有する結晶性半導体膜と、
前記シリコンを主成分としゲルマニウムを含有する結晶性半導体膜に接する、{110}面の結晶を有する結晶性シリコン膜とが積層されていることを特徴とする蓄電装置用電極。 - 集電体と、
前記集電体上に形成される活物質とを有し、
前記活物質は、前記集電体に接する、{110}面の結晶を有し、シリコンを主成分とし金属元素及びゲルマニウムを含有する結晶性半導体膜と、
前記{110}面の結晶を有し、シリコンを主成分とし金属元素及びゲルマニウムを含有する結晶性半導体膜に接する、{110}面の結晶を有し且つ金属元素を有する結晶性シリコン膜とが積層されていることを特徴とする蓄電装置用電極。 - 請求項2乃至請求項5のいずれか一項において、前記金属元素は、シリコンと反応しシリサイドを形成する金属元素であることを特徴とする蓄電装置用電極。
- 請求項6において、前記金属元素は、ジルコニウム、チタン、ハフニウム、バナジウム、ニオブ、タンタル、クロム、モリブデン、タングステン、コバルト、ニッケル、または白金であることを特徴とする蓄電装置用電極。
- 請求項1乃至請求項7のいずれか一項において、前記集電体は、ステンレス、銅、ニッケル、タングステン、またはモリブデンであることを特徴とする蓄電装置用電極の作製方法。
- 集電体上にシリコンを主成分としゲルマニウムを含有する非晶質半導体膜を形成し、
前記シリコンを主成分としゲルマニウムを含有する非晶質半導体膜に金属元素を添加した後、加熱処理を行って、
{110}面の結晶を有し、且つシリコンを主成分としゲルマニウム及び金属元素を含有する結晶性半導体膜を形成することを特徴とする蓄電装置用電極の作製方法。 - 集電体上に非晶質半導体膜を形成した後、前記非晶質半導体膜にゲルマニウムを添加して、シリコンを主成分としゲルマニウムを含有する非晶質半導体膜を形成し、
前記シリコンを主成分としゲルマニウムを含有する非晶質半導体膜に金属元素を添加した後、加熱処理を行って、
{110}面の結晶を有し、且つシリコンを主成分としゲルマニウム及び金属元素を含有する結晶性半導体膜を形成することを特徴とする蓄電装置用電極の作製方法。 - 基板上に集電体を形成し、
前記集電体上に、シリコンを主成分としゲルマニウムを含有する非晶質半導体膜を形成し、
前記シリコンを主成分としゲルマニウムを含有する非晶質半導体膜上に非晶質シリコン膜を形成し、
前記シリコンを主成分としゲルマニウムを含有する非晶質半導体膜及び前記非晶質シリコン膜に金属元素を添加した後、加熱処理を行って、
{110}面の結晶を有し且つシリコンを主成分としゲルマニウムを含有する結晶性半導体膜と、{110}面の結晶を有する結晶性シリコン膜とを形成することを特徴とする蓄電装置用電極の作製方法。 - 基板上に集電体を形成し、
前記集電体上に、シリコンを主成分としゲルマニウムを含有する非晶質半導体膜を形成し、
前記シリコンを主成分としゲルマニウムを含有する非晶質半導体膜上に非晶質シリコン膜を形成した後、前記非晶質シリコン膜にレーザ光を照射して、
シリコンを主成分としゲルマニウムを含有する結晶性半導体膜と、{110}面の結晶を有する結晶性シリコン膜とを形成することを特徴とする蓄電装置用電極の作製方法。 - 請求項9乃至請求項11のいずれか一項において、前記金属元素は、シリコンと反応しシリサイドを形成する金属元素であることを特徴とする蓄電装置用電極の作製方法。
- 請求項13において、前記金属元素は、ジルコニウム、チタン、ハフニウム、バナジウム、ニオブ、タンタル、クロム、モリブデン、タングステン、コバルト、ニッケル、または白金であることを特徴とする蓄電装置用電極の作製方法。
- 請求項9乃至請求項14のいずれか一項において、前記集電体は、ステンレス、銅、ニッケル、タングステン、またはモリブデンであることを特徴とする蓄電装置用電極の作製方法。
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