CN202308196U

CN202308196U - High-capacity lithium ion battery

Info

Publication number: CN202308196U
Application number: CN2011204480160U
Authority: CN
Inventors: 崔镕圭
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-04
Anticipated expiration: 2021-11-14

Abstract

The utility model relates to the field of energy storage and power batteries, and in particular relates to a high-capacity lithium ion battery, wherein heat dissipation is realized by an upper heat dissipation shell and a lower heat dissipation shell, and electrodes of overlapped batteries with fixable package are led out by insulating fixed bases. The battery comprises battery monomers, the upper heat dissipation shell, the lower heat dissipation shell and the insulating fixed bases, wherein the two battery monomers are overlapped and then arranged in a shell formed by the upper heat dissipation shell and the lower heat dissipation shell, the insulating fixed bases are arranged at two ends of the shell, and the electrodes of the battery monomer with flexible package are led out from electrode leading-out holes in the insulating fixed base. The high-capacity lithium ion battery is simple and reasonable in structure, and a metal shell in the form of an anti-explosion container is adopted as a heat dissipation plate; and therefore, the high-capacity lithium ion battery has strong adaptability to severe environment, strong vibration-resisting capability, long service life and good safety.

Description

High capacity lithium ion battery

Technical field

The utility model relates to energy storage and electrokinetic cell field, and is a kind of specifically through two heat dissipation metal housing heat radiations up and down, the high capacity lithium ion battery of through the insulation holder soft-package battery electrode of stack being drawn simultaneously.

Background technology

Energy storage and electrokinetic cell have very far-reaching prospect as novel energy on using.But also exist in its production and the use some problems just take capacity bigger electrokinetic cell for example, some models that have now are such as 40Ah, 60Ah 100Ah, these products commonly used of 120Ah.The extremely conflict of contradiction is arranged in product design; Owing to be large-capacity multipurpose on electric automobile, electric bicycle and products such as energy-storage system that some are large-scale; Voltage is about 300V-600V (automobile batteries) generally, so will inevitably pay the utmost attention to the fail safe and the stability of battery.

As everyone knows, battery itself is exactly a power supply independently, and the battery that general IT uses is that the charging and discharging currents of the little battery of capacity itself is also just relatively little; And the environment that energy storage and electrokinetic cell are used is generally all spent in 65 degree-20; So from security consideration, most of producers are most non-metal shells that adopt in the design motivation battery, reason is exactly the defective that as far as possible reduces battery itself; Most importantly Insulation Problems; When electrokinetic cell uses, can not use simple lead-out wire as connected mode because above mention the discharging current problem, must use metal electrode to draw form; Great majority all are with the fastening method connection electrode of screw, so must use non-metal shell.So just certainly existing the conflict in the design; Conclude be divided into following some: 1., heat dissipation problem; Energy storage and electrokinetic cell just can produce certain heat in use when carrying out heavy-current discharge, add general automobile serviceability temperature such as automobile; Be not simple one group or several groups but tens groups hundreds of group even, this is that the heat that produces is well imagined.The battery of non-metal shell heat-sinking capability under this operational environment is poor, is easy to produce phenomenons such as casing deformation, leakage, also can cause fire when serious.Environment for use can have influence on the heat dissipation problem of battery equally; Energy storage and electrokinetic cell are very wide as the new forms of energy applicable surface; Have a lot of environmental factors when using battery; Such as under airtight, high temperature, condition such as freezing, using, like this will be very strict to the requirement of battery self " quality ", and non-metal shell to the adaptability of adverse circumstances just seem relatively weak tendency some.2., vibration resistance problem; Owing to be,, will inevitably produce vibration in motion such as automobile so on applicable elements, just have certain constraint through the screw extraction electrode; Will produce looseningly like this with the screw form as connected mode, can cause producing adverse consequences when serious.

Summary of the invention

The purpose of the utility model is to provide a kind of simple and reasonable, and the metal shell that adopts the anti-explosion container form is as heating panel, and is strong to the adaptability of adverse circumstances, and the vibration resistance ability is strong, long service life, high capacity lithium ion battery that fail safe is good.

The purpose of the utility model is to realize like this; This battery comprises the soft-package battery monomer, last radiating shell, following radiating shell; The insulation holder; Be set in the housing that is made up of last radiating shell and following radiating shell after described two soft-package battery monomers stack, the insulation holder is arranged on the two ends of housing, and the electrode on the soft-package battery monomer is drawn through the electrode fairlead on the insulation holder.

Be processed with a plurality of rectangular space protrusion on the working face of described upward radiating shell and following radiating shell, be processed with assembling detent or convexity in the space protrusion centre at two ends; Be processed with a plurality of card or card contact on the side of described upward radiating shell and following radiating shell.

Described insulation holder 4 sections are " recessed " font, and upper and lower surfaces has a plurality of clamping salient points, and the side has a plurality of electrode fairleads.

Advantage of the utility model and good effect:

1, the utility model courageously adopts metal shell, has improved the heat-sinking capability of battery like this, has strengthened the non-deformability of battery, adapts to various hot and cold environments for use, has prolonged the useful life of battery simultaneously.

2, the utility model is simple and reasonable; Be convenient to assembling; Form the heat radiation gap through rectangular space protrusion between two batteries of the assembling adjacent stack in back; Simultaneously under assembling detent or protruding effect, realized the location, strong to the adaptability of adverse circumstances, the vibration resistance ability is strong, long service life, fail safe are good.

3, because the raw material sources majority of non-metal shell depends on oil, so be not environment-friendly products, it is not optimal selection that this state is produced the new forms of energy product down.So adopting metal shell to seem than the use non-metal shell pays attention to and environmental protection more.

Description of drawings

Fig. 1 is a high capacity lithium ion battery overall structure sketch map.

Fig. 2 be among the utility model Fig. 1 A to perspective view.

Fig. 3 is the utility model each several part decomposition chart.

Fig. 4 is the utility model insulation fixed seat structure sketch map.

Fig. 5 is that the utility model Fig. 4 B is to perspective view.

Fig. 6 is that the utility model Fig. 4 C is to perspective view.

Fig. 7 is the rearview of the utility model Fig. 4.

Fig. 8 is that the utility model electrodes use relative direction is provided with the execution mode structural representation.

Embodiment

By accompanying

drawing

1,2, shown in 3: this battery comprises soft-package battery monomer 1; Last radiating shell 2; Following radiating shell 3, insulation holder 4 is set at the housing that last radiating shell 2 and following radiating shell 3 be made up of in after described two soft-package battery monomers, 1 stack at least; Insulation holder 4 is arranged on the two ends of housing, and the electrode 5 on the soft-package battery monomer 1 is drawn through the electrode fairlead 6 on the insulation holder 4.

Be processed with a plurality of rectangular space protrusion 8 on the working face 7 of described upward radiating shell 2 and following radiating shell 3, be processed with assembling detent or protruding 9 in space protrusion 8 centres at two ends; Be processed with a plurality of card or card contact 11 on the side 10 of described upward radiating shell 2 and following radiating shell 3.

By accompanying

drawing

4,5,6, shown in 7: described insulation holder 4 sections are " recessed " font, and upper and lower surfaces has a plurality of clamping salient points 12, and the side has a plurality of electrode fairleads 6.

Shown in accompanying drawing 8: described electrode 5 adopts same direction (all at the top) or relative direction (shown in Figure 5, respectively in top and bottom) to be provided with, and the mode of these two kinds of settings is respectively applied for different purposes.

Claims

1. high capacity lithium ion battery; It is characterized in that: this battery comprises soft-package battery monomer (1); Last radiating shell (2); Following radiating shell (3), insulation holder (4) is set in the housing that is made up of last radiating shell (2) and following radiating shell (3) after described two soft-package battery monomers (1) stack; Insulation holder (4) is arranged on the two ends of housing, and the electrode (5) on the soft-package battery monomer (1) is drawn through the electrode fairlead (6) on the insulation holder (4).

2. a kind of high capacity lithium ion battery according to claim 1; It is characterized in that: be processed with a plurality of rectangular space protrusion (8) on the working face (7) of described upward radiating shell (2) and following radiating shell (3), be processed with assembling detent or convexity (9) in space protrusion (8) centre at two ends; Be processed with a plurality of card or card contact (11) on the side (10) of described upward radiating shell (2) and following radiating shell (3).

3. a kind of high capacity lithium ion battery according to claim 1 is characterized in that: described insulation holder (4) section is " recessed " font, and upper and lower surfaces has a plurality of clamping salient points (12), and the side has a plurality of electrode fairleads (6).