CN106099132A - A kind of lithium battery core body and the lithium primary battery of gained - Google Patents
A kind of lithium battery core body and the lithium primary battery of gained Download PDFInfo
- Publication number
- CN106099132A CN106099132A CN201610758541.XA CN201610758541A CN106099132A CN 106099132 A CN106099132 A CN 106099132A CN 201610758541 A CN201610758541 A CN 201610758541A CN 106099132 A CN106099132 A CN 106099132A
- Authority
- CN
- China
- Prior art keywords
- positive plate
- lithium
- diaphragm bag
- battery core
- plate
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
The present invention relates to field of lithium ion battery, particularly relate to a kind of lithium battery core body and the lithium primary battery of gained.This lithium battery core body includes the diaphragm bag containing positive plate and negative plate, described positive plate is the polygon that least one set opposite side is parallel with described negative plate, and the described diaphragm bag containing positive plate is to form the folding diaphragm bag containing positive plate after positive plate carries out after diaphragm bag doubling heat encapsulating.The lithium battery core body of the present invention can reserve the length of barrier film during assembling the diaphragm bag containing positive plate flexibly according to the design of battery capacity and battery core thickness, solve the problem that battery battery core the most easily occurs that short circuit, the contact of pole piece instability and battery performance are poor.
Description
Technical field
The present invention relates to field of lithium ion battery, particularly relate to a kind of lithium battery core body and the lithium primary battery of gained.
Background technology
Big owing to having energy density, to open a way and to put road voltage high, cryogenic property is good and the advantage such as length storage life,
Lithium primary battery the most progressively replaces other one-shot batteries such as zinc-manganese, alkali manganese, silver oxide.And sending out along with lithium ion battery technology
Exhibition, its cost performance improves constantly, and is widely used in all trades and professions.But, the performance of lithium primary battery only optimizes not merely
Mate lithium salts with electrolyte by optimizing electrolyte and optimal screening and can reach, it is often more important that, it is excellent that battery should possess structure
Different and stable battery core.And battery battery core is made up of overlapped pole piece, the most right due between positive/negative plate and barrier film
Area misplace, use the battery of this battery core in use to there will be electric current distribution uneven, discharge performance difference and
The bad phenomenon such as caloric value is big.Additionally, the instability between the barrier film of battery core and pole piece contacts, battery can be caused to use
Journey occurs the phenomenon of short circuit because of positive/negative plate contact.Thus, research and development one has a raising stability test, solve barrier film with
The performance improving battery is played highly important effect by the battery core assemble method of the astable contact between pole piece.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of electric current distribution uniformly, pole piece isolation is good, battery core peace
The lithium battery core body of full excellent performance and the lithium primary battery of gained.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of lithium battery core body, including containing just
The diaphragm bag of pole piece, negative plate, it is characterised in that: described positive plate is the most parallel polygon with described negative plate
Shape, the described diaphragm bag containing positive plate for carrying out heat encapsulating, the described barrier film containing positive plate to positive plate after diaphragm bag doubling
Bag has foldability.
Preferably, described positive plate thickness is 0.1 mm ~ 0.6 mm；Described negative plate thickness is 0.1 mm ~ 0.3
mm。
Preferably, the described diaphragm bag containing positive plate is sealed by N sheet positive plate and diaphragm bag and assembles, N for more than or
Positive integer equal to 1.
Preferably, the assembling mode of the described diaphragm bag containing positive plate is: diaphragm bag two ends reserve long end and short end respectively,
By diaphragm bag doubling, then first positive plate is sealed, place second positive plate with the envelope trace of heat-sealing for starting point, so
Afterwards second positive plate is carried out heat encapsulating, according to the method, positive plate required in assembling process is carried out heat encapsulating.
It is further preferred that the long end of described barrier film at least three longer than barrier film short end positive plate unit length, described unit
Distance between two parallel lines of a length of placed positive plate, the long end of barrier film last anticathode sheet is encapsulated.
Preferably, the assembling mode of described lithium battery core body is, by equal for the heat-sealing trace of the described diaphragm bag containing positive plate
Smear Kynoar, at beginning and the positive plate of the diaphragm bag containing positive plate just to placing negative plate, then doubling on position
Sealing negative plate, the upper surface at the positive pole diaphragm bag of correspondence sealing negative plate puts negative plate, according to the method, contains described
The diaphragm bag of positive plate and described negative plate carry out Z-type laminated type assembling.
It is further preferred that much more a piece of described negative plate quantity is than described positive plate quantity.
Use the first assembling mode to carry out the diaphragm bag containing positive plate assembled, by the described diaphragm bag containing positive plate with
Described negative plate carries out the region corresponding with positive plate of the battery core body upper and lower surface after Z-type laminated type assembling and places negative plate, altogether
Two panels, and coat polyvinylidene fluoride in the both sides and end utilizing the diaphragm bag of about three unit pole leaf length reserved
Alkene, has enclosed last sealing to the negative plate winding one of battery core body upper and lower surface, and the battery core negative plate quantity ratio after sealing is just
How a piece of pole piece is.
Use the second assembling mode to carry out the diaphragm bag containing positive plate that assembles, by the described diaphragm bag containing positive plate with
Negative plate is pasted in the battery core body upper and lower surface region corresponding with positive plate after described negative pole carries out Z-type laminated type assembling, and totally two
Sheet, prepares the battery core body that two negative plates are exposed, and much more a piece of the battery core negative plate quantity after pasting is than positive plate quantity.
Present invention also offers above-mentioned lithium battery core body and the lithium primary battery of gained, including electrolyte, lithium salts and outer
Shell, described electrolyte is at least one in carbonates electrolyte, sulfurous esters electrolyte and carboxylic acid esters electrolyte；Institute
State lithium salts for double fluorine sulfimide lithium, lithium perchlorate, lithium iodide, per-fluoroalkyl sulfonyl imine lithium, fluorine butyl sulfonic acid Asia acyls of enjoying a double blessing
Amine lithium, lithium fluoride, trifluoromethyl sulfonic acid lithium, bis-trifluoromethylsulfoandimide lithium, di-oxalate lithium borate, lithium hexafluoro phosphate, tetrafluoro boron
At least one in acid lithium；Described shell is any one in box hat, aluminum plastic film or aluminum hull.
A kind of lithium battery core body that the present invention relates to and the lithium primary battery of gained, including the diaphragm bag containing positive plate and
Negative plate, due to the barrier film encapsulating completely to pole piece, thus solves prior art and easily occurs when assembling battery core
Short circuit, the contact of pole piece instability and the problem of battery performance difference, and the positive plate shape of the present invention can be at least one
The polygon that group opposite side is parallel, therefore, can produce the battery battery core with special shape, have the biggest according to different demands
Promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the diaphragm bag containing positive plate of the present invention.
Fig. 2 and Fig. 3 is the assembling schematic diagram of lithium battery core body structure of the present invention.
Wherein, 1 diaphragm bag；2 positive plates；The 3 long ends of barrier film；4 barrier film short ends；5 envelope traces；6 Kynoar；7 positive pole barrier films
Bag；8 negative plates.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with
Embodiment, is further elaborated to the present invention.
Embodiment 1
The assembling mode of the diaphragm bag containing positive plate that the present embodiment provides: as it is shown in figure 1, by after diaphragm bag 1 doubling to first
Sheet positive plate 2 is encapsulated, and wherein diaphragm bag reserves the long end 3 long measure than reserved short end 4 long at least three positive plate, in advance
The length staying long end 3 can carry out motility according to the Capacity design of battery and reserve, and is used for the encapsulating to last a piece of negative plate 8,
With first envelope trace 5 as starting point, placing second positive plate 2, continue encapsulating, now first positive plate 2 is being entered by diaphragm bag 1
To being folded over during row encapsulating, then on second envelope trace 5, place the 3rd positive plate 2, continue encapsulating, according to the method,
The diaphragm bag containing positive plate is obtained after positive plate 2 required in assembling process is encapsulated.
Embodiment 2
The another kind of assembling mode of the diaphragm bag containing positive plate that the present embodiment provides is: such as Fig. 1, by isometric for diaphragm bag 1 doubling
After, first positive plate 2 is encapsulated, with first envelope trace 5 as starting point, places second positive plate 2, continue encapsulating, this
Time diaphragm bag 1 when first positive plate 2 is encapsulated to being folded over, then second envelope trace 5 on place the 3rd
Positive plate 2, continues encapsulating, according to the method, obtain after positive plate 2 required in assembling process is encapsulated containing positive plate every
Film bag.
Embodiment 3
The present embodiment provide by assembling mode such as Fig. 2 institute of the lithium battery core body structure of embodiment 1 and embodiment 2 gained
Show, above the first positive plate 2 of the diaphragm bag containing positive plate, seal the surrounding at trace smear Kynoar 6, first
The top of individual positive pole diaphragm bag 7 and first positive plate 2 correspondence position put first negative plate 8, first positive pole diaphragm bag 7
First negative plate 8 is sealed, then at the envelope trace on second positive pole diaphragm bag 7 two sides with second positive pole diaphragm bag 7 doubling
Surrounding smear Kynoar 6, second positive pole diaphragm bag 7 and the 3rd positive pole diaphragm bag 7 doubling seal second negative pole
Sheet 8, according to the method, carries out doubling sealing to negative plate 8 required in assembling process, and then, battery core body is upper and lower after folding
Negative plate 8 is placed in the region corresponding with first positive plate 2, two sides respectively, as it is shown on figure 3, two panels altogether, and in negative plate 8 surrounding
Coat Kynoar 6, finally utilize mode separation strapping that electric core winding one circle is completed last sealing, the battery core negative plate after sealing
Much more a piece of 8 quantity are than the quantity of positive plate 2.
Positive plate of the present invention, the method that required electrolyte, lithium salts, shell are commonly used according to those skilled in the art is come
Lithium primary battery is prepared, owing to positive plate is any one in ferrous disulfide, manganese dioxide, copper oxide and carbon monofluoride,
Therefore, the present invention is applicable to lithium/manganese dioxide (Li/MnO2), lithium/iron disulfide (Li/FeS2), lithium/copper oxide (Li/CuO),
Lithium/carbon monofluoride [Li/ (CF)x] etc. battery core used by lithium primary battery system, additionally, a kind of lithium battery electric core that the present invention provides
The lithium primary battery of body and gained can take into full account the design of battery capacity, and according to the size of battery and wanting of capacitance
Ask, size and the sealing position of mode separation strapping with both positive and negative polarity can be carried out flexible, there is homogeneous current distribution, battery core performance
The advantages such as stable safety.
Last institute is it should be noted that, the present invention is only protected by above example in order to technical scheme to be described
Protect the restriction of scope, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should wrap
Within being contained in protection scope of the present invention.
Claims (8)
1. a lithium battery core body, including the diaphragm bag containing positive plate, negative plate, it is characterised in that: described positive plate and institute
Stating negative plate and be the polygon that least one set opposite side is parallel, the described diaphragm bag containing positive plate is for align after diaphragm bag doubling
Pole piece carries out heat encapsulating, and the described diaphragm bag containing positive plate has foldability.
Lithium battery core body the most according to claim 1, it is characterised in that: described positive plate thickness is 0.1mm ~ 0.6mm；
Described negative plate thickness is 0.1mm ~ 0.3mm.
Lithium battery core body the most according to claim 2, it is characterised in that: the described diaphragm bag containing positive plate is by diaphragm bag
Assembling the heat-sealing of N sheet positive plate, N is the positive integer more than or equal to 1.
Lithium battery core body the most according to claim 3, it is characterised in that: the assembling side of the described diaphragm bag containing positive plate
Formula is: diaphragm bag two ends reserve long end and short end respectively, by diaphragm bag doubling, then seals first positive plate, with
The envelope trace of heat-sealing is that starting point places second positive plate, then second positive plate carries out heat encapsulating, according to the method, to group
Positive plate required in process of assembling carries out heat encapsulating, the positive plate after encapsulating, obtains the diaphragm bag containing positive plate, so
Not only make positive plate fixing in diaphragm bag, and during being assembled into battery core body with negative plate, so that positive plate
Effectively isolated with negative plate, it is therefore prevented that cause battery core internal short-circuit because of positive/negative plate dislocation contact.
Lithium battery core body the most according to claim 4, it is characterised in that: the long end of barrier film at least three longer than barrier film short end
Positive plate unit length, described unit length by placement positive plate two parallel lines between distance, the long end of barrier film is the most right
Negative plate is encapsulated.
6. according to the lithium battery core body described in claim 4 and 5, it is characterised in that: the assembling side of described lithium battery core body
Formula is, the heat-sealing trace of the described diaphragm bag containing positive plate is all smeared Kynoar, at the beginning of the diaphragm bag containing positive plate
With positive plate just to placing negative plate on position, then doubling seals negative plate, seals the positive pole diaphragm bag of negative plate in correspondence
Upper surface put negative plate, according to the method, the described diaphragm bag containing positive plate and described negative plate are carried out Z-type laminated type
Assemble.
Lithium battery core body the most according to claim 6, it is characterised in that: described negative plate quantity is than described positive plate number
How a piece of measure.
8. a lithium primary battery for lithium battery core body gained according to any one of claim 1 to 7, its feature exists
In: include that electrolyte, lithium salts and shell, described electrolyte are carbonates electrolyte, sulfurous esters electrolyte and carboxylate
At least one in class electrolyte；Described lithium salts is double fluorine sulfimide lithium, lithium perchlorate, lithium iodide, per-fluoroalkyl sulfonyl Asia
Amine lithium, enjoy a double blessing fluorine butyl sulfonic acid Asia amide lithium, lithium fluoride, trifluoromethyl sulfonic acid lithium, bis-trifluoromethylsulfoandimide lithium, double oxalic acid boron
At least one in acid lithium, lithium hexafluoro phosphate, LiBF4；Described shell is any one in box hat, aluminum plastic film or aluminum hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758541.XA CN106099132A (en) | 2016-08-30 | 2016-08-30 | A kind of lithium battery core body and the lithium primary battery of gained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758541.XA CN106099132A (en) | 2016-08-30 | 2016-08-30 | A kind of lithium battery core body and the lithium primary battery of gained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106099132A true CN106099132A (en) | 2016-11-09 |
Family
ID=57224026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610758541.XA Pending CN106099132A (en) | 2016-08-30 | 2016-08-30 | A kind of lithium battery core body and the lithium primary battery of gained |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106099132A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910568A (en) * | 2017-11-15 | 2018-04-13 | 厦门大学 | A kind of lithium primary cell |
| CN108511829A (en) * | 2017-02-27 | 2018-09-07 | 湖南妙盛汽车电源有限公司 | A kind of lithium battery |
| CN109937502A (en) * | 2017-05-25 | 2019-06-25 | 株式会社Lg化学 | Electrode assembly and the method for manufacturing the electrode assembly |
| CN110676437A (en) * | 2019-10-17 | 2020-01-10 | 深圳吉阳智能科技有限公司 | Special-shaped pole piece bag making method and diaphragm bagged special-shaped pole piece |
| CN111725533A (en) * | 2019-06-27 | 2020-09-29 | 湖南立方新能源科技有限责任公司 | Preparation method of lithium primary battery |
| CN113013553A (en) * | 2021-02-08 | 2021-06-22 | 昆山聚创新能源科技有限公司 | Diaphragm bag, electric core and lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191631Y (en) * | 2008-04-16 | 2009-02-04 | 耀安电池电源科技（深圳）有限公司 | Disposable lithium cell |
| CN101707255A (en) * | 2009-11-11 | 2010-05-12 | 惠州市德赛锂电科技有限公司 | Novel flexible packing lithium battery |
| CN101783420A (en) * | 2009-05-05 | 2010-07-21 | 深圳市雄韬电源科技有限公司 | Method for manufacturing lithium ion battery lamination |
| CN201893404U (en) * | 2010-12-09 | 2011-07-06 | 浙江南都电源动力股份有限公司 | Membrane bag making machine for bag-type lamination process |
| US20140013586A1 (en) * | 2011-04-07 | 2014-01-16 | Nissan Motor Co., Ltd | Device for producing bagged electrode and method for producing bagged electrode |
-
2016
- 2016-08-30 CN CN201610758541.XA patent/CN106099132A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191631Y (en) * | 2008-04-16 | 2009-02-04 | 耀安电池电源科技（深圳）有限公司 | Disposable lithium cell |
| CN101783420A (en) * | 2009-05-05 | 2010-07-21 | 深圳市雄韬电源科技有限公司 | Method for manufacturing lithium ion battery lamination |
| CN101707255A (en) * | 2009-11-11 | 2010-05-12 | 惠州市德赛锂电科技有限公司 | Novel flexible packing lithium battery |
| CN201893404U (en) * | 2010-12-09 | 2011-07-06 | 浙江南都电源动力股份有限公司 | Membrane bag making machine for bag-type lamination process |
| US20140013586A1 (en) * | 2011-04-07 | 2014-01-16 | Nissan Motor Co., Ltd | Device for producing bagged electrode and method for producing bagged electrode |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511829A (en) * | 2017-02-27 | 2018-09-07 | 湖南妙盛汽车电源有限公司 | A kind of lithium battery |
| CN109937502A (en) * | 2017-05-25 | 2019-06-25 | 株式会社Lg化学 | Electrode assembly and the method for manufacturing the electrode assembly |
| CN109937502B (en) * | 2017-05-25 | 2022-03-04 | 株式会社Lg化学 | Electrode assembly and method of manufacturing the same |
| CN107910568A (en) * | 2017-11-15 | 2018-04-13 | 厦门大学 | A kind of lithium primary cell |
| US11489205B2 (en) | 2017-11-15 | 2022-11-01 | Xiamen University | Primary lithium battery |
| CN111725533A (en) * | 2019-06-27 | 2020-09-29 | 湖南立方新能源科技有限责任公司 | Preparation method of lithium primary battery |
| CN110676437A (en) * | 2019-10-17 | 2020-01-10 | 深圳吉阳智能科技有限公司 | Special-shaped pole piece bag making method and diaphragm bagged special-shaped pole piece |
| CN113013553A (en) * | 2021-02-08 | 2021-06-22 | 昆山聚创新能源科技有限公司 | Diaphragm bag, electric core and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106099132A (en) | A kind of lithium battery core body and the lithium primary battery of gained | |
| CN208272035U (en) | A kind of stacked secondary cell stacked based on intersection | |
| CN105981196B (en) | Including the bag type secondary battery with recessed sealing | |
| JP5094215B2 (en) | Battery and battery pack | |
| US8110309B2 (en) | Secondary battery | |
| CN105489395A (en) | Production method of lithium ion super capacitor, and lithium ion super capacitor | |
| CN106784998A (en) | A kind of secondary cell and heater | |
| CN106898823B (en) | A kind of preparation method of water storage type flexible packing lithium ion electric core and battery | |
| JP2015536530A (en) | Battery cell including electrode assembly with offset arrangement | |
| CN103904386A (en) | Soft package lithium air battery and preparation method thereof | |
| CN104681877B (en) | A kind of electrokinetic cell pole piece, electrokinetic cell and preparation method thereof | |
| US20130034773A1 (en) | Secondary cell | |
| CN111509150B (en) | Lithium ion battery's electric core structure | |
| CN206480713U (en) | A kind of secondary cell and heater | |
| JP4171855B2 (en) | battery | |
| CN100429822C (en) | Electrode plate core of lithium ion cell and lithium ion cell with the same | |
| CN103762387B (en) | Method for preparing coiled polymer lithium battery and coiled polymer lithium battery | |
| JP5298815B2 (en) | Lithium ion secondary battery manufacturing method, electrolytic solution, and lithium ion secondary battery | |
| JP2013109946A (en) | Laminate type battery | |
| KR102060679B1 (en) | Pouch-typed Battery Cell Having Battery Case of Sheet Structure | |
| JP3869668B2 (en) | Electrochemical device and manufacturing method thereof | |
| JP2010244865A (en) | Laminated battery | |
| CN106099133A (en) | A kind of lithium battery core body, preparation method and the lithium primary battery of gained | |
| CN203746957U (en) | Power battery pole core and power battery thereof | |
| KR20150072236A (en) | A Pouch Packaging Structure Having Sealed Terrace Area and a Method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |