JP2006134894A5 - - Google Patents
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- JP2006134894A5 JP2006134894A5 JP2005368032A JP2005368032A JP2006134894A5 JP 2006134894 A5 JP2006134894 A5 JP 2006134894A5 JP 2005368032 A JP2005368032 A JP 2005368032A JP 2005368032 A JP2005368032 A JP 2005368032A JP 2006134894 A5 JP2006134894 A5 JP 2006134894A5
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- active material
- negative electrode
- material layer
- lithium
- layer
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Claims (5)
少なくとも一方の前記集電用表面層には、その表面において開孔していると共にその厚さ方向へ延び且つ非水電解液の浸透が可能な微細空隙が多数形成されており、At least one of the current collecting surface layers is formed with a large number of fine voids which are open in the surface thereof and extend in the thickness direction and allow the nonaqueous electrolyte to penetrate,
前記活物質層が、リチウムを吸蔵したリチウム化合物の形成能の高い活物質の粒子を含み、また該活物質層においては、リチウム化合物の形成能の低い金属材料が該活物質層の厚み方向全域に亘って浸透しており、The active material layer includes particles of an active material having a high lithium compound-forming ability that occludes lithium, and in the active material layer, a metal material having a low lithium compound-forming ability is present in the entire thickness direction of the active material layer. Penetrating through,
芯材としての導電性金属箔層を備えていないことを特徴とする非水電解液二次電池用負極。A negative electrode for a non-aqueous electrolyte secondary battery, characterized by not having a conductive metal foil layer as a core material.
キャリア箔上に電解めっきによって集電用表面層を形成し、A surface layer for current collection is formed on the carrier foil by electrolytic plating,
該集電用表面層上に、活物質の粒子を含む導電性スラリーを塗布して活物質層を形成して、該キャリア箔上に該集電用表面層と該活物質層とをこの順で備えた負極前駆体を形成し、A conductive slurry containing active material particles is applied to the current collecting surface layer to form an active material layer, and the current collecting surface layer and the active material layer are arranged in this order on the carrier foil. Forming the negative electrode precursor prepared in
各負極前駆体における前記活物質層どうしが対向するように、金属リチウム箔を両負極前駆体間に挟み込んで、該金属リチウム箔と両負極前駆体とを貼り合わせにより一体化させ、The metal lithium foil is sandwiched between both negative electrode precursors so that the active material layers in each negative electrode precursor face each other, and the metal lithium foil and both negative electrode precursors are integrated by bonding,
リチウムが熱拡散するに十分な温度に加熱して、前記金属リチウム箔からリチウムを前記活物質層へ拡散させ、然る後、Lithium is heated to a temperature sufficient for thermal diffusion to diffuse lithium from the metallic lithium foil into the active material layer, and then
前記キャリア箔を各負極前駆体から剥離分離することを特徴とする非水電解液二次電池用負極の製造方法。A method for producing a negative electrode for a non-aqueous electrolyte secondary battery, wherein the carrier foil is peeled and separated from each negative electrode precursor.
少なくとも一方の前記集電用表面層には、その表面において開孔していると共にその厚さ方向へ延び且つ非水電解液の浸透が可能な微細空隙が多数形成されており、At least one of the current collecting surface layers is formed with a large number of fine voids which are open in the surface thereof and extend in the thickness direction and allow the nonaqueous electrolyte to penetrate,
前記活物質層が、リチウムを吸蔵したリチウム化合物の形成能の高い活物質の粒子を含み、また該活物質層においては、リチウム化合物の形成能の低い金属材料が該活物質層の厚み方向全域に亘って浸透しており、The active material layer includes particles of an active material having a high lithium compound-forming ability that occludes lithium, and in the active material layer, a metal material having a low lithium compound-forming ability is present in the entire thickness direction of the active material layer. Penetrating through,
芯材としての導電性金属箔層を備えていることを特徴とする非水電解液二次電池用負極。A negative electrode for a non-aqueous electrolyte secondary battery, comprising a conductive metal foil layer as a core material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005368032A JP3906342B2 (en) | 2004-05-12 | 2005-12-21 | Negative electrode for non-aqueous electrolyte secondary battery and method for producing the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004141981 | 2004-05-12 | ||
| JP2005368032A JP3906342B2 (en) | 2004-05-12 | 2005-12-21 | Negative electrode for non-aqueous electrolyte secondary battery and method for producing the same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005061280A Division JP3799049B2 (en) | 2004-05-12 | 2005-03-04 | Negative electrode for non-aqueous electrolyte secondary battery and method for producing the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006134894A JP2006134894A (en) | 2006-05-25 |
| JP2006134894A5 true JP2006134894A5 (en) | 2006-07-06 |
| JP3906342B2 JP3906342B2 (en) | 2007-04-18 |
Family
ID=36728201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005368032A Active JP3906342B2 (en) | 2004-05-12 | 2005-12-21 | Negative electrode for non-aqueous electrolyte secondary battery and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3906342B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8206569B2 (en) | 2009-02-04 | 2012-06-26 | Applied Materials, Inc. | Porous three dimensional copper, tin, copper-tin, copper-tin-cobalt, and copper-tin-cobalt-titanium electrodes for batteries and ultra capacitors |
| WO2010090956A2 (en) * | 2009-02-04 | 2010-08-12 | Applied Materials, Inc. | Porous three dimensional copper, tin, copper-tin, copper-tin-cobalt, and copper-tin-cobalt-titanium electrodes for batteries and ultra capacitors |
| JP7187661B2 (en) * | 2019-03-01 | 2022-12-12 | ビークルエナジージャパン株式会社 | Electrodes for lithium secondary batteries and lithium secondary batteries |
-
2005
- 2005-12-21 JP JP2005368032A patent/JP3906342B2/en active Active
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