CN106282950A - 一种提高锂电池负极铝箔集电极电性能的方法 - Google Patents
一种提高锂电池负极铝箔集电极电性能的方法 Download PDFInfo
- Publication number
- CN106282950A CN106282950A CN201610664274.XA CN201610664274A CN106282950A CN 106282950 A CN106282950 A CN 106282950A CN 201610664274 A CN201610664274 A CN 201610664274A CN 106282950 A CN106282950 A CN 106282950A
- Authority
- CN
- China
- Prior art keywords
- aluminium foil
- vacuum
- lithium battery
- film
- colelctor electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/021—Cleaning or etching treatments
- C23C14/022—Cleaning or etching treatments by means of bombardment with energetic particles or radiation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
- C23C14/165—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0421—Methods of deposition of the material involving vapour deposition
- H01M4/0423—Physical vapour deposition
- H01M4/0426—Sputtering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Physical Vapour Deposition (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明公开了一种提高锂电池负极铝箔集电极电性能的方法,该方法是将要处理的铝箔在净化房内裁切到需要的尺寸后固定在Roll‑Roll真空磁控溅射镀膜设备的基片架上;开启Roll‑Roll真空磁控溅射镀膜设备,调整设备至可镀膜工艺条件;投入待镀膜基片架‑铝箔;利用离子源对铝箔表面进行等离子体轰击处理,剥离铝箔表面氧化层、去除表面尖峰;利用直流真空磁控溅射工艺在铝箔表面沉积薄膜铝;铝箔表面沉积铝膜后,在真空状态下进行加热退火处理,消除铝箔内部的金属应力;将镀膜后的铝箔卸下,对其性能检查;检查后进行真空包装;本发明利用磁控溅射真空镀膜技术在负极集电极铝箔上沉积一层纳米薄膜铝来提高锂电池负极集电极铝箔的导电性能和降低铝箔的粗糙度。
Description
技术领域
本发明涉及锂电池器件及锂电池材料制造技术领域,具体涉及一种利用真空等离子镀膜技术提高锂电池负极铝箔集电极电性能的方法。
背景技术
锂电池负极集电极铝箔目前还没有国际标准和国家技术标准,锂电池行业一般要求铝箔表面粗糙度Rz≦2.0um,铝箔的厚度20um,并且使用轧制铝箔。
锂离子电池负极集电极对铝箔的质量要求:第一、铝箔表面色泽均匀、干净、板型平整,无明显辊印、麻点、针孔、腐蚀痕迹等等;第二、铝箔表面无折痕、花斑、亮线等轧制缺陷;第三、铝箔表面无色差;第四、表面无油,无严重油气味,无肉眼可见油斑;第五、表面张力,达因笔测试不小于32达因。
综上所述,需要一种减小轧制锂电池负极集电极铝箔粗糙度及提高其导电性能的技术方法。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种提高锂电池负极铝箔集电极电性能的方法,它利用真空磁控溅射镀膜技术减小轧制铝箔粗糙度及提高其导电性能。
为实现上述目的,本发明采用的技术方案是:一种提高锂电池负极集电极电性能的方法,它包括以下步骤:
a、将要处理的铝箔在净化房内裁切到需要的尺寸后固定在Roll-Roll真空磁控溅射镀膜设备的基片架上,准备磁控溅镀铝膜;
b、开启Roll-Roll真空磁控溅射镀膜设备,调整设备至可镀膜工艺条件;
c、投入待镀膜基片架-铝箔;
d、利用离子源对铝箔表面进行等离子体轰击处理,剥离铝箔表面氧化层、去除表面尖峰;
e、利用直流真空磁控溅射工艺在铝箔表面沉积薄膜铝;
f、铝箔表面沉积铝膜后,在真空状态下进行加热退火处理,消除铝箔内部的金属应力;
g、将镀膜后的铝箔卸下,对其性能检查;
h、检查后进行真空包装。
优选的,所述步骤a中铝箔裁切后的尺寸为:0.2-1.2m。
优选的,所述步骤b中可镀膜工艺条件为:本底真空度5x10-3Pa、工艺气氛3x10- 1Pa、加热温度80-200℃、离子源功率0.2-3kw、直流磁控溅射阴极功率1-20W、镀膜速度0.1-5m/s。
优选的,所述步骤h中的真空度为3x10-1-5x10-3Pa。
采用上述技术后,本发明有益效果为:
1、利用离子源对铝箔表面进行等离子体轰击处理,使得铝箔表面的粗糙度降低,表面的氧化层被去除,提高了铝箔集电极的导电性能。
2、利用直流真空磁控溅射工艺在铝箔表面沉积薄膜铝,轧制铝箔经过等离子沉积铝膜后,粗糙的表面凹坑被填平,进一步降低了铝箔表面粗糙度;表面沉积的薄膜铝,提高了铝箔的导电性能。
3、铝箔表面沉积铝膜后,在真空状态下进行退火处理,消除铝箔内部的金属应力,改善铝箔的机械性能。
4、镀膜后的铝箔卸下,对其性能检查后进行真空包装,防止空气氧化。
附图说明
图1是现有技术中锂电池负极集电极铝箔的主要技术参数表。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本具体实施方式采用以下具体步骤:
a、将要处理的铝箔在净化房内裁切到需要的尺寸后固定在Roll-Roll真空磁控溅射镀膜设备的基片架上,准备磁控溅镀铝膜;
b、开启Roll-Roll真空磁控溅射镀膜设备,调整设备至可镀膜工艺条件;
c、投入待镀膜基片架-铝箔;
d、利用离子源对铝箔表面进行等离子体轰击处理,剥离铝箔表面氧化层、去除表面尖峰;
e、利用直流真空磁控溅射工艺在铝箔表面沉积薄膜铝;
f、铝箔表面沉积铝膜后,在真空状态下进行加热退火处理,消除铝箔内部的金属应力;
g、将镀膜后的铝箔卸下,对其性能检查;
h、检查后进行真空包装。
步骤a中铝箔裁切后的尺寸为:0.2-1.2m;步骤b中可镀膜工艺条件为:本底真空度5x10-3Pa、工艺气氛3x10-1Pa、加热温度80-200℃、离子源功率0.2-3kw、直流磁控溅射阴极功率1-20W、镀膜速度0.1-5m/s;步骤h中的真空度为3x10-1-5x10-3Pa。
本具体实施方式利用离子源对铝箔表面进行等离子体轰击处理,使得铝箔表面的粗糙度降低,表面的氧化层被去除,提高了铝箔集电极的导电性能;再通过直流真空磁控溅射工艺在铝箔表面沉积薄膜铝,轧制铝箔经过等离子沉积铝膜后,粗糙的表面凹坑被填平,进一步降低了铝箔表面粗糙度;表面沉积的薄膜铝,提高了铝箔的导电性能;再在真空状态下对铝箔表面沉积的铝膜进行退火处理,消除铝箔内部的金属应力,改善铝箔的机械性能;镀膜后的铝箔卸下,对其性能检查后进行真空包装,防止空气氧化。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (4)
1.一种提高锂电池负极铝箔集电极电性能的方法,其特征在于它包括以下步骤:
a、将要处理的铝箔在净化房内裁切到需要的尺寸后固定在Roll-Roll真空磁控溅射镀膜设备的基片架上,准备磁控溅镀铝膜;
b、开启Roll-Roll真空磁控溅射镀膜设备,调整设备至可镀膜工艺条件;
c、投入待镀膜基片架-铝箔;
d、利用离子源对铝箔表面进行等离子体轰击处理,剥离铝箔表面氧化层、去除表面尖峰;
e、利用直流真空磁控溅射工艺在铝箔表面沉积薄膜铝;
f、铝箔表面沉积铝膜后,在真空状态下进行加热退火处理,消除铝箔内部的金属应力;
g、将镀膜后的铝箔卸下,对其性能检查;
h、检查后进行真空包装。
2.根据权利要求1所述的一种提高锂电池负极铝箔集电极电性能的方法,其特征在于所述步骤a中铝箔裁切后的尺寸为:0.2-1.2m。
3.根据权利要求1所述的一种提高锂电池负极铝箔集电极电性能的方法,其特征在于所述步骤b中可镀膜工艺条件为:本底真空度5x10-3Pa、工艺气氛3x10-1Pa、加热温度80-200℃、离子源功率0.2-3kw、直流磁控溅射阴极功率1-20W、镀膜速度0.1-5m/s。
4.根据权利要求1所述的一种提高锂电池负极铝箔集电极电性能的方法,其特征在于所述步骤h中的真空度为3x10-1-5x10-3Pa。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610664274.XA CN106282950A (zh) | 2016-08-12 | 2016-08-12 | 一种提高锂电池负极铝箔集电极电性能的方法 |
CN201710666733.2A CN107452964A (zh) | 2016-08-12 | 2017-08-07 | 一种提高锂电池负极铜箔集电极电性能的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610664274.XA CN106282950A (zh) | 2016-08-12 | 2016-08-12 | 一种提高锂电池负极铝箔集电极电性能的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106282950A true CN106282950A (zh) | 2017-01-04 |
Family
ID=57669534
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610664274.XA Pending CN106282950A (zh) | 2016-08-12 | 2016-08-12 | 一种提高锂电池负极铝箔集电极电性能的方法 |
CN201710666733.2A Pending CN107452964A (zh) | 2016-08-12 | 2017-08-07 | 一种提高锂电池负极铜箔集电极电性能的方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710666733.2A Pending CN107452964A (zh) | 2016-08-12 | 2017-08-07 | 一种提高锂电池负极铜箔集电极电性能的方法 |
Country Status (1)
Country | Link |
---|---|
CN (2) | CN106282950A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107768677A (zh) * | 2017-09-18 | 2018-03-06 | 深圳市烯谷能源控股有限公司 | 一种提高锂离子电池正极集电极耐蚀性能的方法 |
CN116751070A (zh) * | 2023-07-03 | 2023-09-15 | 江苏富乐华功率半导体研究院有限公司 | 一种陶瓷覆铝基板的制备方法及其制备的陶瓷覆铝基板 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110190286A (zh) * | 2019-05-24 | 2019-08-30 | 吉林大学 | 一种基于原位生长的垂直石墨烯-铜箔复合集流体及其制备方法 |
CN110993886B (zh) * | 2019-12-26 | 2021-01-05 | 北京师范大学 | 一种锂电池集流体的制备装置 |
CN114351217B (zh) * | 2022-01-12 | 2024-03-22 | 华中科技大学 | 一种金属电镀复合薄膜及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8526104B2 (en) * | 2010-04-30 | 2013-09-03 | Corning Incorporated | Plasma ion assisted deposition of Mo/Si multilayer EUV coatings |
CN103233199B (zh) * | 2013-04-02 | 2015-10-14 | 中国科学院宁波材料技术与工程研究所 | 一种提高基材表面氮化物硬质涂层光亮度及硬度的方法 |
CN104164653B (zh) * | 2013-05-17 | 2017-10-13 | 北京北方华创微电子装备有限公司 | 一种磁控溅射设备及方法 |
CN105336912A (zh) * | 2015-09-14 | 2016-02-17 | 哈尔滨工业大学 | 一种增强锂离子电池集流体与活性物质粘结力的方法 |
CN106435494A (zh) * | 2016-08-12 | 2017-02-22 | 深圳市第四能源科技有限公司 | 一种改善锂电池正极集电极电性能的方法 |
-
2016
- 2016-08-12 CN CN201610664274.XA patent/CN106282950A/zh active Pending
-
2017
- 2017-08-07 CN CN201710666733.2A patent/CN107452964A/zh active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107768677A (zh) * | 2017-09-18 | 2018-03-06 | 深圳市烯谷能源控股有限公司 | 一种提高锂离子电池正极集电极耐蚀性能的方法 |
CN116751070A (zh) * | 2023-07-03 | 2023-09-15 | 江苏富乐华功率半导体研究院有限公司 | 一种陶瓷覆铝基板的制备方法及其制备的陶瓷覆铝基板 |
CN116751070B (zh) * | 2023-07-03 | 2023-11-17 | 江苏富乐华功率半导体研究院有限公司 | 一种陶瓷覆铝基板的制备方法及其制备的陶瓷覆铝基板 |
Also Published As
Publication number | Publication date |
---|---|
CN107452964A (zh) | 2017-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106282950A (zh) | 一种提高锂电池负极铝箔集电极电性能的方法 | |
Ding et al. | Tribological properties of Cr-and Ti-doped MoS2 composite coatings under different humidity atmosphere | |
CN110055496B (zh) | 一种在核用锆合金基底表面制备Cr涂层的制备工艺 | |
CN107768677A (zh) | 一种提高锂离子电池正极集电极耐蚀性能的方法 | |
Yang et al. | Enhancement of corrosion resistance and discharge performance of Mg–5Li–3Al–1Zn sheet for Mg-air battery via rolling | |
CN107502870B (zh) | 一种提高锂电池正极铝箔集电极电性能的方法 | |
CN107653440A (zh) | 一种烧结钕铁硼永磁体表面制备铝或铝锡合金镀层的方法 | |
CN101775586A (zh) | 在非铝基底上电化学定向生长多孔Al2O3膜的制备方法 | |
JP2016089193A (ja) | 表面処理銅箔及び積層板 | |
CN104911554B (zh) | 一种锌镁合金镀层钢带的工业化全连续型pvd生产工艺 | |
JP2020532653A (ja) | 電解銅箔、その製造方法及びそれを含む高容量Li二次電池用陰極 | |
CN106099201B (zh) | 一种高能量密度的全固态薄膜电池的制备方法 | |
CN106119795A (zh) | 利用真空磁控溅射镀膜技术制备锂电池C‑Si负极涂层的方法 | |
CN204959024U (zh) | 塑料件金属陶瓷化磁控溅射镀膜装置 | |
CN103264219A (zh) | 一种复合金属材料的制备方法 | |
CN108060382A (zh) | 一种提高锌铝镁合金镀层钢板胶粘性能的方法 | |
CN103774110B (zh) | 磁控溅射制备导电薄膜的方法 | |
CN109825806B (zh) | 一种pet非导电膜及其制备方法 | |
CN110644025A (zh) | 一种超薄镍铜合金箔及其制备方法 | |
CN106449890B (zh) | 一种太阳能光伏焊带的制备方法 | |
CN109811308A (zh) | 一种ito导电膜制作工艺 | |
Wang et al. | Growth Mechanism of Ceramic Coating on ZK60 Magnesium Alloy Based on Two‐Step Current‐Decreasing Mode of Micro‐Arc Oxidation | |
CN102345100B (zh) | 铝铈金属靶材及利用该铝铈金属靶材制作铝铈膜的方法 | |
JP6676634B2 (ja) | シート状の独立した部材を有する蓄電システム、独立した部材、その製造方法、およびその使用 | |
JP2005126758A (ja) | 透明導電膜の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20170424 Address after: 518000 D, E, unit, building 1, Merchants Plaza, No. 1166, hope road, Shekou, Shenzhen, Guangdong, China Applicant after: Shenzhen Valley Energy Holdings Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Futian District Futian Street Binhe allied Plaza No. 5022 A block, room 2608 Applicant before: Shenzhen fourth Energy Technology Co., Ltd. |
|
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |