CN104966799B - A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging - Google Patents

A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging Download PDF

Info

Publication number
CN104966799B
CN104966799B CN201510408453.2A CN201510408453A CN104966799B CN 104966799 B CN104966799 B CN 104966799B CN 201510408453 A CN201510408453 A CN 201510408453A CN 104966799 B CN104966799 B CN 104966799B
Authority
CN
China
Prior art keywords
layer
resin
gluing oxidant
plastic film
aluminum plastic
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.)
Active
Application number
CN201510408453.2A
Other languages
Chinese (zh)
Other versions
CN104966799A (en
Inventor
章结兵
谢凤秀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Lidun new energy materials Co.,Ltd.
Original Assignee
Suzhou Lidun Energy Storage Material Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Lidun Energy Storage Material Technology Co Ltd filed Critical Suzhou Lidun Energy Storage Material Technology Co Ltd
Priority to CN201510408453.2A priority Critical patent/CN104966799B/en
Publication of CN104966799A publication Critical patent/CN104966799A/en
Application granted granted Critical
Publication of CN104966799B publication Critical patent/CN104966799B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/116Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The present invention relates to a kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging, including poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer, first gluing oxidant layer, high water absorption polypropylene layer, second gluing oxidant layer, aluminium foil layer, 3rd gluing oxidant layer, nylon layer, 4th gluing oxidant layer, fluorine film layer, the aluminum plastic film stacks gradually the poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer from inside to outside, first gluing oxidant layer, high water absorption polypropylene layer, second gluing oxidant layer, aluminium foil layer, 3rd gluing oxidant layer, nylon layer, 4th gluing oxidant layer, fluorine film layer.The present invention is using multi-layered bonded, lamination complex technique production, processing is simple, with excellent barrier property, heat sealability, ductility and decay resistance, quality requirement of the lithium ion battery to housing material performance can be met, can be widely applied in polymer Li-ion battery packaging.

Description

A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging
Technical field
The present invention relates to battery packaging material field, more particularly to a kind of multi-functional barrier plastic-aluminum of lithium battery composite packaging Film.
Background technology
Polymer Li-ion battery has more light weight, more high-capacitance due to it compared with existing liquid lithium ionic cell And the features such as service life length and higher security, it has also become the main direction of development of Green Chemistry new energy.
The quality of polymer Li-ion battery is not only in close relations with lithium-ion electrolyte sole mass, and with its outsourcing Packing quality also has very big correlation.Polymer Li-ion battery housing material need to generally have due to its special quality requirement The universalities such as excellent heat sealability, barrier property and ductility can meet its lithium ion battery to housing material It is required that.At present, existing housing material all can not preferably meet quality requirement of the lithium ion battery to housing material, therefore It is extremely urgent to improve existing lithium ion battery outer cover material.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging, the aluminium Plastic film has excellent barrier property, heat sealability, ductility and decay resistance, and lithium ion battery can be met to outer packing The quality requirement of material property, it can be widely applied in polymer Li-ion battery packaging.
The technical scheme is that:A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging, including poly- fluororesin and Non-stretched cast polypropylene resin and polyvinyl resin coextruded layer, the first gluing oxidant layer, high water absorption polypropylene layer, the second adhesive Layer, aluminium foil layer, the 3rd gluing oxidant layer, nylon layer, the 4th gluing oxidant layer, fluorine film layer, the aluminum plastic film stack gradually from inside to outside The poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer, the first gluing oxidant layer, high water absorption poly- third Alkene layer, the second gluing oxidant layer, aluminium foil layer, the 3rd gluing oxidant layer, nylon layer, the 4th gluing oxidant layer, fluorine film layer.
As a preferred embodiment of the present invention, the poly- fluororesin and non-stretched cast polypropylene resin and polyethylene tree Fat coextruded layer thickness is 10~50 μm.
As a preferred embodiment of the present invention, the poly- fluororesin and non-stretched cast polypropylene resin and polyethylene tree Poly- fluororesin in fat coextruded layer is polyvinyl fluoride, Kynoar, polytetrafluoroethylene (PTFE), difluoroethylene homopolymer, tetrafluoroethene, Hexafluoropropene, the binary of vinylidene or terpolymer, modified polyvinyl fluoride, modified polyvinilidene fluoride, modified polytetrafluoroethyl-ne One or both of alkene combination of the above.
As a preferred embodiment of the present invention, the poly- fluororesin and non-stretched cast polypropylene resin and polyethylene tree Polyvinyl resin in fat coextruded layer is LLDPE, low density polyethylene (LDPE), medium density polyethylene, high-density polyethylene Alkene, very one or both of low density polyethylene (LDPE) combination of the above.
As a preferred embodiment of the present invention, the material of the high water absorption polypropylene layer is polypropylene and high hydroscopic resin Blended melting co-extrusion is formed, and the thickness of the high water absorption polypropylene layer is 10~100 μm.
As a preferred embodiment of the present invention, content of super water absorbent resin scope is 1% in the high water absorption polypropylene layer ~50%.
As a preferred embodiment of the present invention, the material of the fluorine film layer is polyvinyl fluoride, Kynoar, polytetrafluoro Ethene, difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropene, the binary of vinylidene or terpolymer, modified poly- fluorine second One or both of alkene, modified polyvinilidene fluoride, modified Teflon combination of the above;The thickness of the fluorine film layer be 3~ 30μm。
As a preferred embodiment of the present invention, the aluminium foil layer thickness is 30~60 μm.
After adopting the above technical scheme, the beneficial effects of the invention are as follows:
First, the Corrosion Protection of hot sealing layer can be effectively improved by adding polyethylene and poly- fluororesin in the present invention in hot sealing layer And heat sealability;Secondly, increase floor height water suction polypropylene layer in the internal layer of aluminium foil, can effectively prevent that steam enters in natural environment Enter electrolyte, reduce the probability that electrolyte produces other acidic materials or gas, effectively extend the service life of lithium ion battery. For the aluminum plastic film using multi-layered bonded, lamination complex technique production, processing is simple, has excellent barrier property, heat sealability, prolongs Malleability energy and decay resistance, quality requirement of the lithium ion battery to housing material performance can be met, can be widely applied to gather In compound lithium ion battery packaging.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 is poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer;2 be first gluing Oxidant layer;3 be high water absorption polypropylene layer;4 be the second gluing oxidant layer;5 be aluminium foil layer;6 be the 3rd gluing oxidant layer;7 be nylon layer;8 For the 4th gluing oxidant layer;9 be fluorine film layer.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair It is bright.
As shown in figure 1, the invention provides a kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging, including poly- fluororesin And non-stretched cast polypropylene resin and polyvinyl resin coextruded layer 1, the first gluing oxidant layer 2, high water absorption polypropylene layer 3, second Gluing oxidant layer 4, aluminium foil layer 5, the 3rd gluing oxidant layer 6, nylon layer 7, the 4th gluing oxidant layer 8, fluorine film layer 9, the aluminum plastic film is from interior To stacking gradually the poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer 1, the first adhesive outside Layer 2, high water absorption polypropylene layer 3, the second gluing oxidant layer 4, aluminium foil layer 5, the 3rd gluing oxidant layer 6, nylon layer 7, the 4th gluing oxidant layer 8th, fluorine film layer 9.
The poly- fluororesin and non-stretched cast polypropylene resin and the thickness of polyvinyl resin coextruded layer 1 are 10~50 μm.
The poly- fluororesin and non-stretched cast polypropylene resin and the poly- fluororesin in polyvinyl resin coextruded layer 1 are poly- PVF, Kynoar, polytetrafluoroethylene (PTFE), difluoroethylene homopolymer, tetrafluoroethene, hexafluoropropene, the binary of vinylidene Or one or both of terpolymer, modified polyvinyl fluoride, modified polyvinilidene fluoride, modified Teflon above group Close.
The poly- fluororesin and non-stretched cast polypropylene resin are with the polyvinyl resin in polyvinyl resin coextruded layer 1 LLDPE, low density polyethylene (LDPE), medium density polyethylene, high density polyethylene (HDPE), very in low density polyethylene (LDPE) one Kind or two or more combinations.
The material of the high water absorption polypropylene layer 3 is that polypropylene is formed with high hydroscopic resin blended melting co-extrusion, the height The thickness of water suction polypropylene layer is 10~100 μm.
Content of super water absorbent resin scope is 1%~50%, preferably 5%~20% in the high water absorption polypropylene layer 3.
The material of the fluorine film layer 9 is polyvinyl fluoride, Kynoar, polytetrafluoroethylene (PTFE), difluoroethylene homopolymer, tetrafluoro Ethene, hexafluoropropene, the binary of vinylidene or terpolymer, modified polyvinyl fluoride, modified polyvinilidene fluoride, modified poly- four One or both of PVF combination of the above;The thickness of the fluorine film layer 9 is 3~30 μm.
The thickness of aluminium foil layer 5 is 30~60 μm.
The manufacturing technology steps of the present invention are as follows:
1. by poly- fluororesin, non-stretched non-cast polypropylene and polyvinyl resin under certain extrusion condition, co-extrusion is melted, Form poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin co-extrusion thing;
2. polypropylene is mixed into co-extrusion with water-absorbing resin, high water absorption acrylic resin thing is formed;
3. a pair aluminium foil surface is passivated processing;
4. by poly- fluororesin and non-stretched cast polypropylene resin and polyvinyl resin co-extrusion thing, high water absorption acrylic resin Thing, passivation aluminium foil, nylon and fluorine film are bonded using adhesive, and by above-mentioned lamination order be laminated it is compound, dry, obtain To aluminum plastic film finished product.
The product of the present invention reaches following index by measure:
1. peel strength test:Electrolyte soaks 85 DEG C, 7 days, and film interlaminar strength is more than or equal to 8N/15mm;
2. permeability resistance is tested:Soaked 14 days in 60 DEG C of water, no layering, weight change is less than 0.05 gram.
A variety of modifications to embodiment will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty Consistent most wide scope.

Claims (8)

1. a kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging, it is characterised in that including poly- fluororesin and non-stretched curtain coating Acrylic resin and polyvinyl resin coextruded layer, the first gluing oxidant layer, high water absorption polypropylene layer, the second gluing oxidant layer, aluminium foil layer, 3rd gluing oxidant layer, nylon layer, the 4th gluing oxidant layer, fluorine film layer, the aluminum plastic film stack gradually the poly- fluorine tree from inside to outside Fat and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer, the first gluing oxidant layer, high water absorption polypropylene layer, the second glue Adhesive layer, aluminium foil layer, the 3rd gluing oxidant layer, nylon layer, the 4th gluing oxidant layer, fluorine film layer.
2. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 1, it is characterised in that the poly- fluorine Resin and non-stretched cast polypropylene resin and polyvinyl resin coextruded layer thickness are 10~50 μm.
3. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 2, it is characterised in that the poly- fluorine Resin and non-stretched cast polypropylene resin and the poly- fluororesin in polyvinyl resin coextruded layer are polyvinyl fluoride;Polyvinylidene fluoride Alkene;Polytetrafluoroethylene (PTFE);Difluoroethylene homopolymer;The binary or terpolymer of tetrafluoroethene;The binary or ternary of hexafluoropropene Copolymer;The binary or terpolymer of vinylidene;Modified polyvinyl fluoride;Modified polyvinilidene fluoride;Modified Teflon One or both of combination of the above.
4. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 2, it is characterised in that the poly- fluorine Resin and non-stretched cast polypropylene resin and the polyvinyl resin in polyvinyl resin coextruded layer be LLDPE, Low density polyethylene (LDPE), medium density polyethylene, very high density polyethylene (HDPE), one or both of low density polyethylene (LDPE) combination of the above.
5. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 1, it is characterised in that the high suction The material of water polypropylene layer is that polypropylene is formed with high hydroscopic resin blended melting co-extrusion, the thickness of the high water absorption polypropylene layer For 10~100 μm.
6. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 5, it is characterised in that the high suction Content of super water absorbent resin scope is 1%~50% in water polypropylene layer.
7. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 1, it is characterised in that the fluorine film The material of layer is polyvinyl fluoride;Kynoar;Polytetrafluoroethylene (PTFE);Difluoroethylene homopolymer;The binary or ternary of tetrafluoroethene Copolymer;The binary or terpolymer of hexafluoropropene;The binary or terpolymer of vinylidene;Modified polyvinyl fluoride;Change Property Kynoar;One or both of modified Teflon combination of the above;The thickness of the fluorine film layer is 3~30 μm.
8. according to the multi-functional barrier aluminum plastic film of lithium battery composite packaging described in claim 1, it is characterised in that the aluminium foil Thickness degree is 30~60 μm.
CN201510408453.2A 2015-07-13 2015-07-13 A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging Active CN104966799B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510408453.2A CN104966799B (en) 2015-07-13 2015-07-13 A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510408453.2A CN104966799B (en) 2015-07-13 2015-07-13 A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging

Publications (2)

Publication Number Publication Date
CN104966799A CN104966799A (en) 2015-10-07
CN104966799B true CN104966799B (en) 2018-01-19

Family

ID=54220810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510408453.2A Active CN104966799B (en) 2015-07-13 2015-07-13 A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging

Country Status (1)

Country Link
CN (1) CN104966799B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106129279B (en) * 2016-08-22 2018-09-21 江苏华谷新材料有限公司 Polymer Li-ion battery flexible package internal layer co-extrusion film and preparation method thereof
CN111540848B (en) * 2020-05-14 2022-11-08 华鼎国联四川动力电池有限公司 Lithium ion battery aluminum plastic film and preparation method thereof
CN113276526B (en) * 2021-05-19 2023-03-24 上海紫江彩印包装有限公司 One-way water absorption composite membrane and preparation method and application thereof
CN113442476A (en) * 2021-06-21 2021-09-28 天津新兴东方临近空间航天科技有限公司 Fluororesin helium barrier film multilayer co-extrusion film process with good compatibility
CN114407465A (en) * 2022-02-14 2022-04-29 上海紫江新材料科技股份有限公司 Polypropylene film for lithium battery aluminum plastic packaging film and preparation method thereof
CN115020878A (en) * 2022-06-07 2022-09-06 江苏锦尚新材料有限公司 Lithium battery aluminum plastic film with moisture absorbing and removing function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2762158Y (en) * 2004-12-09 2006-03-01 江苏通光信息有限公司 High-efficiency water-proof submarine optical cable
CN101369674A (en) * 2007-08-13 2009-02-18 黄穗阳 Safe high-energy folding case lithium ion battery and its production technology
CN103208593A (en) * 2012-01-17 2013-07-17 昭和电工包装株式会社 Battery packaging materials, molding method of battery packaging materials, and lithium secondary battery
CN103700789A (en) * 2013-12-31 2014-04-02 昆山永翔光电科技有限公司 Flexible packaging film of polymer lithium ion battery, and preparation method of flexible packaging film
CN204885221U (en) * 2015-07-13 2015-12-16 苏州锂盾储能材料技术有限公司 Multi -functional separation plastic -aluminum membrane of lithium cell composite packaging

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5258254B2 (en) * 2006-11-17 2013-08-07 株式会社トクヤマ Packaging film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2762158Y (en) * 2004-12-09 2006-03-01 江苏通光信息有限公司 High-efficiency water-proof submarine optical cable
CN101369674A (en) * 2007-08-13 2009-02-18 黄穗阳 Safe high-energy folding case lithium ion battery and its production technology
CN103208593A (en) * 2012-01-17 2013-07-17 昭和电工包装株式会社 Battery packaging materials, molding method of battery packaging materials, and lithium secondary battery
CN103700789A (en) * 2013-12-31 2014-04-02 昆山永翔光电科技有限公司 Flexible packaging film of polymer lithium ion battery, and preparation method of flexible packaging film
CN204885221U (en) * 2015-07-13 2015-12-16 苏州锂盾储能材料技术有限公司 Multi -functional separation plastic -aluminum membrane of lithium cell composite packaging

Also Published As

Publication number Publication date
CN104966799A (en) 2015-10-07

Similar Documents

Publication Publication Date Title
CN104966799B (en) A kind of multi-functional barrier aluminum plastic film of lithium battery composite packaging
CN104201298B (en) A kind of lithium ion battery flexible package aluminum plastic film
CN103647029B (en) A kind of lithium battery aluminum-plastic film and preparation method
CN103213364B (en) Composite membrane for all-plastic lithium battery
CN104966800A (en) Functional composite packaging aluminum plastic film for lithium battery
JP5719838B2 (en) Battery or capacitor outer packaging material and method for manufacturing the same
CN109663728A (en) A kind of lithium battery encapsulation aluminum plastic film aluminium foil passivation technology
CN109378410A (en) A kind of lithium battery anticorrosion aluminum plastic film
CN105070854B (en) A kind of lithium battery composite packaging high-barrier aluminum plastic film and preparation method
CN107825773A (en) A kind of aluminum-plastic composite membrane for lithium battery flexible packaging
CN105428555A (en) Multifunctional aluminum plastic film applied to polymer lithium ion battery
CN107204384A (en) Three layers of integral structure solar cell backboard and preparation method thereof
CN104485430A (en) Soft package membrane for lithium battery
CN204885221U (en) Multi -functional separation plastic -aluminum membrane of lithium cell composite packaging
CN211858689U (en) double-PP-AL combined aluminum-plastic film
CN203733851U (en) Lithium battery aluminum-plastic film
CN202174779U (en) Battery shell layer structure
CN105161657A (en) High puncture-resistant polymer lithium-ion battery composite membrane
CN207758271U (en) A kind of corrosion-resisting lithium battery encapsulation aluminum plastic film
CN103400946B (en) Special flexible packaging film for lithium-ion power battery and energy storage lithium battery and preparation method thereof
CN104070726A (en) Double-layer composite aluminum-plastic film
CN212571154U (en) Non-adhesive multilayer composite polymer lithium ion battery aluminum-plastic film
CN204991786U (en) Lithium cell composite packaging high resistant separates plastic -aluminum membrane
CN105720216A (en) External package materials for an electrical storage device and the electrical storage device
CN205542917U (en) Polymer lithium ion battery uses two aluminium lamination type plastic -aluminum membranes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210113

Address after: 313100 no.759, Chizhou Avenue, Huaxi street, Changxing County, Huzhou City, Zhejiang Province

Patentee after: Zhejiang Lidun new energy materials Co.,Ltd.

Address before: 215138 No.6, Anmin Road, Dongqiao, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province

Patentee before: SUZHOU LIDUN ENERGY STORAGE MATERIAL TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right