CN108428813A - Soft-package battery - Google Patents
Soft-package battery Download PDFInfo
- Publication number
- CN108428813A CN108428813A CN201710080420.9A CN201710080420A CN108428813A CN 108428813 A CN108428813 A CN 108428813A CN 201710080420 A CN201710080420 A CN 201710080420A CN 108428813 A CN108428813 A CN 108428813A
- Authority
- CN
- China
- Prior art keywords
- packaging film
- soft
- seal portion
- interior
- main part
- 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.)
- Withdrawn
Links
- 239000012785 packaging film Substances 0.000 claims abstract description 55
- 229920006280 packaging film Polymers 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000007767 bonding agent Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007688 edging Methods 0.000 abstract description 3
- 238000007731 hot pressing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered 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
- B32B15/08—Layered 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
- B32B15/085—Layered 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered 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
- B32B15/08—Layered 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
- B32B15/088—Layered 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 polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention provides a kind of soft-package battery, including two layers of packaging film and the battery core that is encapsulated between two layers of packaging film.Each layer packaging film includes external protection, interior fused layer and the metal layer between external protection and interior fused layer.Two layers of packaging film forms the main part of receiving battery core at middle part, closedtop side and side sealing is tightly connected and formed around main part, side sealing bends and is bonded on the side of main part.Part of two layers of packaging film on side sealing is respectively formed interior side seal portion and outer side seal portion, wherein outer side seal portion has ontology and exposes the free end of metal layer, and free end is folded back on ontology and is clamped between ontology and the side of main part, interior side seal portion is clamped between ontology and the side of main part and opposite with free end.The present invention realizes edge sealing using the bending structure in outer side seal portion, without other edging materials, simplifies edge sealing process, improves edge sealing effect；Relative to traditional double-fold structure, the overall width of soft-package battery is reduced.
Description
Technical field
The present invention relates to field of batteries more particularly to a kind of soft-package batteries.
Background technology
Soft bag lithium ionic cell mainly uses aluminum-plastic composite membrane to carry out battery core encapsulation at present, and aluminum plastic film is broadly divided into protection
Layer, metal layer and fused layer three-decker.After encapsulated when packaging, trimming, the metal layer in the edge on encapsulation side can not be by
Package and exposed, the problems such as being easy to cause short circuit.
Current battery edge edge sealing structure mainly has two kinds of structures of encapsulated single folded edges and double-fold.Encapsulated list flanging knot
Structure is to stick insulating tape at the edge on cell package side, then uses mechanical means that will encapsulate side and turns up and be pasted onto battery core master
Body side；Double-fold structure is then that will encapsulate when the edge for exposing metal layer is folded to encapsulation on ontology, then will encapsulate side sheet
Battery core main body is turned up and be adhered to body, so that the edge of exposing metal layer is clamped in encapsulation side ontology and battery core master by turning down twice
Between body.
Two kinds of edge sealing structures can solve the problems, such as the dew aluminium of current conventional batteries, but there is also itself larger limitations
Property, especially when edge sealing processing is made on the non-rectilinear side to non-rectangular batteries, limitation is more obvious, on the one hand, for non-rectilinear
Side, insulating tape can not completely coat the edge on encapsulation side, there is dew aluminium risk, for arc-shaped sides such as fillets, there are adhesive tapes
The problems such as corrugation, overlapping, cause open defect, and after a certain period of use time, adhesive tape may be stuck up in section start and termination
It rises or turns over angle, cause open defect and dew aluminium risk；On the other hand, it for encapsulated single folded edges, needs to increase the consumptions such as adhesive tape
Material, while needing to increase rubberizing process；For double-fold structure, flanging tedious process twice, while the width of battery is increased,
It is easy to cause dimension ultra-specification.
Invention content
The problem of in view of background technology, the purpose of the present invention is to provide a kind of soft-package batteries, can simplify envelope
Side technique improves edge sealing effect and energy density.
To achieve the goals above, the present invention provides a kind of soft-package batteries comprising two layers of packaging film and is encapsulated in
Battery core between two layers of packaging film.Each layer packaging film includes external protection, interior fused layer and is merged with interior positioned at external protection
Metal layer between layer.Two layers of packaging film forms the main part of receiving battery core at middle part, is tightly connected simultaneously around main part
Form closedtop side and side sealing, wherein side sealing bends and is bonded on the side of main part.Two layers of packaging film is on side sealing
Part be respectively formed interior side seal portion and outer side seal portion, wherein outer side seal portion have ontology and expose metal layer free end,
And free end is folded back on ontology and is clamped between ontology and the side of main part, interior side seal portion is clamped in ontology and main part
Side between and it is opposite with free end.
Beneficial effects of the present invention are as follows：
In soft-package battery according to the present invention, since the free end in outer side seal portion is clamped in the side of ontology and main part
Between, interior side seal portion be clamped between ontology and the side of main part, so as to realize that outer side seal portion and interior side seal portion expose
The insulated enclosure of metal layer；Since soft-package battery of the invention realizes edge sealing using the bending structure in outer side seal portion, without other
Edging material, simplify edge sealing process, improve edge sealing effect；The thickness of side sealing is only the thickness of two layers of packaging film simultaneously, because
This reduces the overall width of soft-package battery relative to traditional double-fold structure, improves the energy density of soft-package battery.
Description of the drawings
Fig. 1 is the schematic diagram according to the packaging film of the soft-package battery of the present invention；
Fig. 2 is the schematic diagram before the packaging film doubling according to the soft-package battery of the present invention；
Fig. 3 is the schematic diagram after the packaging film doubling according to the soft-package battery of the present invention；
Fig. 4 is the sectional view that A-A makes along Fig. 3；
Fig. 5 is the schematic diagram after the free end inflection according to the soft-package battery of the present invention；
Fig. 6 is the schematic diagram after the side sealing bending according to the soft-package battery of the present invention.
Wherein, the reference numerals are as follows：
1 packaging film U closedtops side
11 external protection S side sealings
Side seal portion in fused layer S1 in 12
The outer side seal portions 13 metal layer S2
2 battery core S21 ontologies
21 free ends lug S22
M main part C cavitys
The sides M1 T thickness directions
Specific implementation mode
Carry out the soft-package battery that the present invention will be described in detail with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 6, soft-package battery according to the present invention is including two layers of packaging film 1 and is encapsulated in two layers of packaging film 1
Between battery core 2.Each layer packaging film 1 is including external protection 11, interior fused layer 12 and positioned at external protection 11 and interior fused layer
Metal layer 13 between 12.Two layers of packaging film 1 forms the main part M of receiving battery core 2 at middle part, is sealed around main part M
It connects and forms closedtop side U and side sealing S, wherein side sealing S bends and is bonded on the side M1 of main part M.Two layers of packaging
Part of the film 1 on side sealing S is respectively formed interior side seal portion S1 and outer side seal portion S2, wherein outer side seal portion S2 has ontology S21
And expose the free end S22 of metal layer 13, and free end S22 is folded back on ontology S21 and is clamped in ontology S21 and main part
Between the side M1 of M, interior side seal portion S1 is clamped between ontology S21 and the side M1 of main part M and opposite with free end S22.
In soft-package battery according to the present invention, since the free end S22 of outer side seal portion S2 is clamped in ontology S21 and main body
Between the side M1 of portion M, interior side seal portion S1 be clamped between ontology S21 and the side M1 of main part M, so as to realize outside
Envelope portion S2 and interior side seal portion S1 exposes the insulated enclosure (realizing edge sealing) of metal layer 13；Due to soft-package battery of the invention profit
Edge sealing is realized with the bending structure of outer side seal portion S2, without other edging materials (such as insulating tape), simplifies edge sealing process,
Improve edge sealing effect；The thickness of side sealing S is only thickness (free end S22 and the interior side seal portion S1 phases of two layers of packaging film 1 simultaneously
It is right, occupy the thickness of a packaging film 1), therefore relative to traditional double-fold structure, reduce the whole wide of soft-package battery
Degree, improves the energy density of soft-package battery.
For non-rectangle soft-package battery, above-mentioned structure can also be used to realize edge sealing.For example, for there is arc-shaped side
Soft-package battery, since this mode is not necessarily to insulating tape, so as to avoid asking using corrugation caused by insulating tape, overlapping etc.
Topic.
In soft-package battery according to the present invention, interior fused layer 12 is polypropylene, and external protection 11 is nylon, metal layer 13
For aluminium foil or steel foil.
In soft-package battery according to the present invention, interior side seal portion S1 is adhered to by bonding agent on the side M1 of main part M,
The free end S22 of outer side seal portion S2 is adhered to by bonding agent on the side M1 of main part M.The bonding agent can be glue, glue
The materials such as paper.
In soft-package battery according to the present invention, referring to figure 5 and figure 6, interior fused layer 12 on ontology S21 by hot pressing with
Interior fused layer 12 on the S22 of free end is merged, and the interior fused layer 12 on interior side seal portion S1 is by hot pressing with ontology S21's
Interior fused layer 12 is merged.Interior fused layer 12 is generally hot melt plastic material (polypropylene), so being returned in free end S22
The interior fused layer 12 at interior fused layer 12 and ontology S21 after folding at the S22 of free end is directly opposite, can be by two by hot pressing
Interior fused layer 12 is merged.Similarly, two layers of packaging film 1 be in packaging electric core 2, the interior fused layer 12 on interior side seal portion S1 with
The interior fused layer 12 of ontology S21 is directly opposite, therefore, can be by hot pressing by the interior fused layer 12 and ontology on interior side seal portion S1
The interior fused layer 12 of S21 is merged.
In soft-package battery according to the present invention, with reference to fig. 4 to fig. 6, receiving battery core 2 is formed on one layer of packaging film 1
Cavity C, and part of the one layer of packaging film 1 on side sealing S is interior side seal portion S1.It is rushed in one layer of packaging film 1
Pressure is to form cavity C.The correspondence outer wall for the cavity C that the side M1 of main part M i.e. one layer of packaging film 1 are gone out.Also may be used
To stamp out a shallow hole on another layer of packaging film 1, with the common receiving battery core 2 of cavity C cooperations.
In soft-package battery according to the present invention, with reference to Fig. 6, the height of side sealing S through-thickness T is less than main part M
Side M1 height.It avoids side sealing S from occupying the space of soft-package battery in the thickness directiont, prevents side sealing S is excessively high from causing
The energy density of soft-package battery reduces.
In soft-package battery according to the present invention, two layers of packaging film 1 is independent two packaging films.Wherein, one
Cavity C is stamped out on packaging film, another packaging film and a packaging film are tightly connected around cavity C and form top
Edge sealing U and side sealing S.
In soft-package battery according to the present invention, referring to figs. 1 to Fig. 4, two layers of packaging film 1 is a packaging film, institute
Connected two layers of packaging film 1 is formed after stating a packaging film doubling.Cavity C is stamped out on a packaging film, it is then right
Folding is formed simultaneously connected two layers of packaging film 1 to seal cavity C.
In soft-package battery according to the present invention, with reference to Fig. 3, the lug 21 of battery core 2 is stretched out from closedtop side U.
It is the forming process of the soft-package battery of one embodiment of the invention below：
1) packaging film referring to Fig.1, is cut out, and packaging film is in the width of center line (namely broken line) side section
Then degree goes out cavity C less than the width of other side part in the smaller side of the width of a packaging film.
2) with reference to Fig. 2, battery core 2 is put into cavity C.
3) with reference to Fig. 3 and Fig. 4, the larger side of the width of a packaging film is overturn along center line, to form phase
Two layers of packaging film 1 even, while carrying out hot pressing around cavity C, forms closedtop side U and side sealing S, the lug 21 of battery core 2 from
Closedtop side U stretches out.
4) with reference to Fig. 5, the free end S22 of outer side seal portion S2 is folded back on ontology S21, and by hot pressing by free end
S22 is fixedly connected with ontology S21；
5) it with reference to Fig. 6, bends side sealing S and side sealing S is adhered on the side M1 of main part M.
Claims (9)
1. a kind of soft-package battery, including two layers of packaging film (1) and the battery core (2) that is encapsulated between two layers of packaging film (1)；
Each layer packaging film (1) includes external protection (11), interior fused layer (12) and positioned at external protection (11) and interior fused layer
(12) metal layer (13) between；
Two layers of packaging film (1) forms the main part (M) of receiving battery core (2) at middle part, is tightly connected simultaneously around main part (M)
Form closedtop side (U) and side sealing (S), wherein side sealing (S) bends and is bonded on the side (M1) of main part (M)；
It is characterized in that,
Part of two layers of packaging film (1) on side sealing (S) is respectively formed interior side seal portion (S1) and outer side seal portion (S2), China and foreign countries
Side seal portion (S2) has ontology (S21) and exposes the free end (S22) of metal layer (13), and free end (S22) is folded back to this
On body (S21) and it is clamped between ontology (S21) and the side (M1) of main part (M), interior side seal portion (S1) is clamped in ontology
(S21) between the side of main part (M) (M1) and opposite with free end (S22).
2. soft-package battery according to claim 1, which is characterized in that interior fused layer (12) is polypropylene, external protection
(11) it is nylon, metal layer (13) is aluminium foil or steel foil.
3. soft-package battery according to claim 1, which is characterized in that interior side seal portion (S1) is adhered to main body by bonding agent
On the side (M1) in portion (M), the free end (S22) of outer side seal portion (S2) is adhered to the side of main part (M) by bonding agent
(M1) on.
4. soft-package battery according to claim 1, which is characterized in that the interior fused layer (12) on ontology (S21) passes through heat
Pressure is merged with the interior fused layer (12) on free end (S22), and the interior fused layer (12) on interior side seal portion (S1) passes through heat
The interior fused layer (12) with ontology (S21) is pressed to be merged.
5. soft-package battery according to claim 1, which is characterized in that be formed with receiving battery core (2) on one layer of packaging film (1)
Cavity (C), and part of the one layer of packaging film (1) on side sealing (S) be interior side seal portion (S1).
6. soft-package battery according to claim 1, which is characterized in that the height of side sealing (S) through-thickness (T) is less than
The height of the side (M1) of main part (M).
7. soft-package battery according to claim 1, which is characterized in that two layers of packaging film (1) is independent Liang Zhangbao
Fill film.
8. soft-package battery according to claim 1, which is characterized in that two layers of packaging film (1) is a packaging film, institute
Connected two layers of packaging film (1) is formed after stating a packaging film doubling.
9. soft-package battery according to claim 1, which is characterized in that the lug (21) of battery core (2) is stretched from closedtop side (U)
Go out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080420.9A CN108428813A (en) | 2017-02-15 | 2017-02-15 | Soft-package battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080420.9A CN108428813A (en) | 2017-02-15 | 2017-02-15 | Soft-package battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108428813A true CN108428813A (en) | 2018-08-21 |
Family
ID=63155353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710080420.9A Withdrawn CN108428813A (en) | 2017-02-15 | 2017-02-15 | Soft-package battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108428813A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430588A (en) * | 2020-03-03 | 2020-07-17 | 珠海冠宇电池股份有限公司 | Shell assembly of button cell, button cell and electronic product |
| WO2021031553A1 (en) * | 2019-08-16 | 2021-02-25 | Ningde Amperex Technology Limited | Battery |
| CN112531214A (en) * | 2019-08-30 | 2021-03-19 | 中科邦汇新材料科技(东莞)有限公司 | Novel lithium battery forming and gluing process |
| CN113113703A (en) * | 2021-04-02 | 2021-07-13 | 惠州市超聚电池有限公司 | Edge sealing method of cylindrical soft package battery and cylindrical soft package battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009224147A (en) * | 2008-03-14 | 2009-10-01 | Nec Corp | Film-coated electric device and battery pack |
| US20100003594A1 (en) * | 2008-07-01 | 2010-01-07 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery |
| CN205122651U (en) * | 2015-11-02 | 2016-03-30 | 宁德新能源科技有限公司 | Soft -packed lithium ion battery |
-
2017
- 2017-02-15 CN CN201710080420.9A patent/CN108428813A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009224147A (en) * | 2008-03-14 | 2009-10-01 | Nec Corp | Film-coated electric device and battery pack |
| US20100003594A1 (en) * | 2008-07-01 | 2010-01-07 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery |
| CN205122651U (en) * | 2015-11-02 | 2016-03-30 | 宁德新能源科技有限公司 | Soft -packed lithium ion battery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031553A1 (en) * | 2019-08-16 | 2021-02-25 | Ningde Amperex Technology Limited | Battery |
| US11721865B2 (en) | 2019-08-16 | 2023-08-08 | Ningde Amperex Technology Limited | Battery |
| CN112531214A (en) * | 2019-08-30 | 2021-03-19 | 中科邦汇新材料科技(东莞)有限公司 | Novel lithium battery forming and gluing process |
| CN111430588A (en) * | 2020-03-03 | 2020-07-17 | 珠海冠宇电池股份有限公司 | Shell assembly of button cell, button cell and electronic product |
| CN111430588B (en) * | 2020-03-03 | 2023-08-22 | 珠海冠宇电池股份有限公司 | Shell assembly of button cell, button cell and electronic product |
| CN113113703A (en) * | 2021-04-02 | 2021-07-13 | 惠州市超聚电池有限公司 | Edge sealing method of cylindrical soft package battery and cylindrical soft package battery |
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