CN209312869U

CN209312869U - A kind of new type lithium ion battery polymer separators

Info

Publication number: CN209312869U
Application number: CN201920069319.8U
Authority: CN
Inventors: 陈博裕; 沈丹; 龚小东; 孙祖顺
Original assignee: ATOP NEW MATERIALS Co Ltd
Current assignee: ATOP NEW MATERIALS Co Ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2019-08-27
Anticipated expiration: 2029-01-16

Abstract

The utility model discloses a kind of new type lithium ion battery polymer separators, including septum body and cuticula frame layer, the surface of the septum body is connected with hydrophobic isolation strip, and the surface of hydrophobic isolation strip is fixed with first thermal insulation layer, and second thermal insulation layer is connected with above first thermal insulation layer, articulamentum is fixed between the first thermal insulation layer and second thermal insulation layer, the surface of the articulamentum offers connecting hole, and the surface of articulamentum offers heat release hole, the hydrophobic isolation strip is connected by the first rinforcement bar with theca externa, the cuticula frame layer is bonded in the outer surface of septum body, connection strap is connected between first rinforcement bar and the second rinforcement bar.The new type lithium ion battery polymer separators, are provided with the first rinforcement bar and the second rinforcement bar, and the secured effect of the diaphragm can be improved by the rinforcement bar of " X " type structure, avoids the problem that lithium-ion electric tank discharge makes septum body deformation occur.

Description

A kind of new type lithium ion battery polymer separators

Technical field

The utility model relates to ion battery technology field, specially a kind of new type lithium ion battery polymer separators.

Background technique

Lithium ion battery refers to the general name with lithium ion inlaid scheme for positive material cell, extensive with for mobile phone With the electronic products such as laptop, and diaphragm is important component in lithium ion battery.

For current existing polymer separators, or there is very big a part of problem, just it is such as existing every Film in use, since the electric discharge of inner ion is easy to be deformed diaphragm, and then influences making for diaphragm in lithium ion battery With the problem of, while existing lithium ion battery can generate heat in internal work, and diaphragm heat dissipation effect is poor, and heat is difficult To shed, the poor problem of using effect, therefore it is proposed that a kind of new type lithium ion battery polymer separators, on solving The problem of proposed in stating.

Utility model content

The purpose of this utility model is to provide a kind of new type lithium ion battery polymer separators, to solve above-mentioned background skill Art proposes existing diaphragm in lithium ion battery in use, since the electric discharge of inner ion is easy that diaphragm is made to generate change Shape, and then the use of diaphragm is influenced, while existing lithium ion battery can generate heat in internal work, and diaphragm heat dissipation is imitated Fruit is poor, and heat is difficult to shed, using effect poor.

To achieve the above object, the utility model provides the following technical solutions: a kind of new type lithium ion battery macromolecule every Film, including septum body and cuticula frame layer, the surface of the septum body are connected with hydrophobic isolation strip, and the table of hydrophobic isolation strip Face is fixed with first thermal insulation layer, and second thermal insulation layer is connected with above first thermal insulation layer, the first thermal insulation layer and second Articulamentum is fixed between thermal insulation layer, the surface of the articulamentum offers connecting hole, and the surface of articulamentum offers heat dissipation Hole, the hydrophobic isolation strip is connected by the first rinforcement bar with theca externa, and the second rinforcement bar is connected on the first rinforcement bar, The surface of the theca externa offers micropore, and the cuticula frame layer is bonded in the outer surface of septum body, first rinforcement bar Connection strap is connected between the second rinforcement bar.

Preferably, there are two the hydrophobic isolation strip is symmetrical arranged about septum body, and hydrophobic isolation strip and diaphragm sheet Body is bonding connection, and hydrophobic isolation strip uses polyethylene fibre material.

Preferably, the first thermal insulation layer and second thermal insulation layer are symmetrical about articulamentum, and it is uniform to connect layer surface Heat release hole is distributed with, and first thermal insulation layer and second thermal insulation layer are all made of graphite fibre material.

Preferably, first rinforcement bar and the oblique structure of the second rinforcement bar, and the first rinforcement bar and second adds Gu the inclined direction of muscle on the contrary, and the first rinforcement bar and the second rinforcement bar constitute X-shaped structure.

Preferably, the oblique structure of the micropore, and the tilt angle of micropore is 45 °, and micropore is uniformly distributed On the surface of theca externa.

Preferably, the connection strap is and is fixedly connected with the first rinforcement bar and the second rinforcement bar, and connection strap uses rubber Glue fiber material.

Compared with prior art, the utility model has the beneficial effects that the new type lithium ion battery polymer separators,

(1) it is provided with the first thermal insulation layer and second thermal insulation layer of graphite fibre material, the layer surface that can be cooperatively connected dissipates Hot hole sheds the heat that inside lithium ion cell electric discharge generates, and improves the heat dissipation effect of the device；

(2) it is provided with the first rinforcement bar and the second rinforcement bar, can improve by the rinforcement bar of " X " type structure should be every The secured effect of film avoids the problem that lithium-ion electric tank discharge makes septum body deformation occur；

(3) be provided with hydrophobic isolation strip, inside lithium ion cell electrolyte can effectively be isolated, avoid electrolyte from every The problem of being overflowed on membrane body, influencing the use of diaphragm.

Detailed description of the invention

Fig. 1 is the utility model positive structure diagram；

Fig. 2 is the utility model articulamentum surface texture schematic diagram；

Fig. 3 is the first rinforcement bar of the utility model and the second rinforcement bar attachment structure schematic diagram.

In figure: 1, septum body；2, hydrophobic isolation strip；3, first thermal insulation layer；4, articulamentum；5, second thermal insulation layer；6, One rinforcement bar；7, the second rinforcement bar；8, theca externa；9, micropore；10, cuticula frame layer；11, connecting hole；12, heat release hole；13, it connects Item.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of new type lithium ion battery polymer separators, Add including septum body 1, hydrophobic isolation strip 2, first thermal insulation layer 3, articulamentum 4, second thermal insulation layer 5, the first rinforcement bar 6, second Gu the surface of muscle 7, theca externa 8, micropore 9, cuticula frame layer 10, connecting hole 11, heat release hole 12 and connection strap 13, septum body 1 connects It is connected to hydrophobic isolation strip 2, and the surface of hydrophobic isolation strip 2 is fixed with first thermal insulation layer 3, and the top of first thermal insulation layer 3 connects It is connected to second thermal insulation layer 5, articulamentum 4 is fixed between first thermal insulation layer 3 and second thermal insulation layer 5, the surface of articulamentum 4 offers Connecting hole 11, and the surface of articulamentum 4 offers heat release hole 12, hydrophobic isolation strip 2 passes through the first rinforcement bar 6 and 8 phase of theca externa Connection, and the second rinforcement bar 7 is connected on the first rinforcement bar 6, the surface of theca externa 8 offers micropore 9, and cuticula frame layer 10 is bonded Connection strap 13 is connected between the outer surface of septum body 1, the first rinforcement bar 6 and the second rinforcement bar 7.

There are two hydrophobic isolation strip 2 is symmetrical arranged about septum body 1, and hydrophobic isolation strip 2 and septum body 1 are Nian Jie Connection, and hydrophobic isolation strip 2 uses polyethylene fibre material, can effectively avoid lithium ion by 2 layers of hydrophobic isolation strip 2 Inside battery electrolyte overflows, and improves the waterproof effect of the septum body 1.

First thermal insulation layer 3 is symmetrical about articulamentum 4 with second thermal insulation layer 5, and 4 surface of articulamentum be evenly distributed with it is scattered Hot hole 12, and first thermal insulation layer 3 and second thermal insulation layer 5 are all made of graphite fibre material.

First rinforcement bar 6 and the oblique structure of the second rinforcement bar 7, and the first rinforcement bar 6 and the second rinforcement bar 7 incline Tilted direction on the contrary, and the first rinforcement bar 6 and the second rinforcement bar 7 constitute X-shaped structure, can by cross-distribution first plus Gu muscle 6 and the second rinforcement bar 7 improve the fastness of the septum body 1, avoid the problem that septum body 1 is easily deformed.

The oblique structure of micropore 9, and the tilt angle of micropore 9 is 45 °, and micropore 9 is evenly distributed in theca externa 8 Surface, facilitate shedding for heat, improve the using effect of the septum body 1.

Connection strap 13 is to be fixedly connected, and connection strap 13 uses IR fiber with the first rinforcement bar 6 and the second rinforcement bar 7 Material facilitates being fixedly connected for the first rinforcement bar 6 and the second rinforcement bar 7 by connection strap 13, improves the consolidation effect of the device.

Working principle: it firstly, according to Fig. 1-3, when in use, is installed on lithium ion battery, works as lithium ion When battery works, the electrode solution of inside lithium ion cell can be effectively isolated in the hydrophobic isolation strip 2 at 1 both ends of septum body, mention The waterproof effect of high diaphragm, the first thermal insulation layer 3 and second thermal insulation layer 5 of hydrophobic 2 outer layer of isolation strip use graphite material, Neng Gouyou The heat for absorbing inside lithium ion cell electric discharge and generating of effect, and the articulamentum from 5 middle part of first thermal insulation layer 3 and second thermal insulation layer The heat release hole 12 on 4 surfaces sheds, and improves the heat dissipation effect of the septum body 1, fixed between hydrophobic isolation strip 2 and theca externa 8 to connect The first rinforcement bar 6 and the second rinforcement bar 7 connect is in cross-distribution, and the rinforcement bar of X-shaped structure is conveniently made to improve the septum body 1 Secured effect, while the first rinforcement bar 6 and the second rinforcement bar 7 are all made of perfluoroethylene-propylene material, improve the septum body 1 Using effect be not described in detail in this specification here it is the use process of the new type lithium ion battery polymer separators Content belong to the prior art well known to professional and technical personnel in the field.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims

1. a kind of new type lithium ion battery polymer separators, including septum body (1) and cuticula frame layer (10), it is characterised in that: The surface of the septum body (1) is connected with hydrophobic isolation strip (2), and to be fixed with first heat-insulated on the surface of hydrophobic isolation strip (2) Layer (3), and is connected with second thermal insulation layer (5) above first thermal insulation layer (3), the first thermal insulation layer (3) and second heat-insulated It is fixed with articulamentum (4) between layer (5), the surface of the articulamentum (4) offers connecting hole (11), and the table of articulamentum (4) Face offers heat release hole (12), and the hydrophobic isolation strip (2) is connected by the first rinforcement bar (6) with theca externa (8), and first It is connected on rinforcement bar (6) the second rinforcement bar (7), the surface of the theca externa (8) offers micropore (9), the cuticula frame layer (10) it is bonded in the outer surface of septum body (1), is connected with and connect between first rinforcement bar (6) and the second rinforcement bar (7) Item (13).

2. a kind of new type lithium ion battery polymer separators according to claim 1, it is characterised in that: the hydrophobic isolation There are two band (2) is symmetrical arranged about septum body (1), and hydrophobic isolation strip (2) and septum body (1) are bonding connection, and And hydrophobic isolation strip (2) uses polyethylene fibre material.

3. a kind of new type lithium ion battery polymer separators according to claim 1, it is characterised in that: described first is heat-insulated Layer (3) and second thermal insulation layer (5) are symmetrical about articulamentum (4), and articulamentum (4) surface is evenly distributed with heat release hole (12), and first thermal insulation layer (3) and second thermal insulation layer (5) are all made of graphite fibre material.

4. a kind of new type lithium ion battery polymer separators according to claim 1, it is characterised in that: described first reinforces Muscle (6) and the oblique structure of the second rinforcement bar (7), and the inclined direction phase of the first rinforcement bar (6) and the second rinforcement bar (7) Instead, and the first rinforcement bar (6) and the second rinforcement bar (7) constitute X-shaped structure.

5. a kind of new type lithium ion battery polymer separators according to claim 1, it is characterised in that: the micropore (9) Oblique structure, and the tilt angle of micropore (9) is 45 °, and micropore (9) is evenly distributed in the surface of theca externa (8).

6. a kind of new type lithium ion battery polymer separators according to claim 1, it is characterised in that: the connection strap It (13) is to be fixedly connected, and connection strap (13) uses IR fiber material with the first rinforcement bar (6) and the second rinforcement bar (7).