CN101728572A - Battery and manufacturing method thereof - Google Patents
Battery and manufacturing method thereof Download PDFInfo
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- CN101728572A CN101728572A CN200810217209A CN200810217209A CN101728572A CN 101728572 A CN101728572 A CN 101728572A CN 200810217209 A CN200810217209 A CN 200810217209A CN 200810217209 A CN200810217209 A CN 200810217209A CN 101728572 A CN101728572 A CN 101728572A
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- protection circuit
- circuit plate
- glue frame
- electric core
- battery
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a battery and a manufacturing method thereof. The battery comprises a battery cell, a protective circuit board, a plastic frame and injection plastic, wherein the protective circuit board is positioned in the plastic frame; the plastic frame comprises an end face and two side walls; the end face is parallel to the protective circuit board and provided with a window for drawing out an output terminal on the protective circuit board; the two side walls are provided with positioning units; the protective circuit board is arranged between the positioning units and the end face; and the injection plastic is filled in a space among the battery cell, the protective circuit board and the plastic frame. The technical scheme of the invention is adopted without a molding support so as to reduce the cost of manufacturing the molding support and the steps of assembling the molding support in a manufacturing process, which further simplifies the battery manufacturing process, and effectively prevents the occurrence of the problem that the output terminal is shaded by the injection plastic in the process of injecting plastics; and meanwhile, because the molding support is not used, the space for storing active substances in the battery is increased, which increases the volume specific capacity of the battery in fact.
Description
[technical field]
The present invention relates to field of batteries.
[background technology]
Battery has obtained application more and more widely in recent years as a kind of novel high power capacity, high-output power, safety, environmental protection, free of contamination rechargeable battery in equipment such as mobile phone, intercom, become the standard configuration of these equipment at present.
Now a kind of high-capacity battery that circulates on the market is by electric core, glue frame; shaped bracket; compositions such as protection circuit plate; electricity core and protection circuit plate are put into glue frame or glue frame on the end face of electric core; having on the protection circuit plate provides extraneous electric energy loaded lead-out terminal; have on the glue frame end face and the corresponding window of protection circuit plate lead-out terminal; to draw the lead-out terminal on the protection circuit plate; there is shaped bracket to support between the section of electricity core and glue frame; then its integral body is put into mould injection sizing material and carried out injection moulding, obtain battery then.If cooperate not tight between protection circuit plate and the glue frame end face; when carrying out the low temperature injection moulding toward interior injecting glue; sizing material covers the lead-out terminal on the protection circuit plate easily; and then influence lead-out terminal and power to the load; the shaped bracket role is for supporting the protection circuit plate; protection circuit plate and glue frame end face are closely cooperated; when injecting glue, can solve the problem that glue covers lead-out terminal like this; yet; shaped bracket has certain size; take the certain space of inside battery, reduced the volume of battery specific capacity.
[summary of the invention]
For solving the problem that adopts shaped bracket to take the inside battery space so that reduce battery capacity, the invention provides a kind of high-volume and capacity ratio battery that need not shaped bracket.
Battery of the present invention comprises electric core, protection circuit plate, glue frame and mould-injection; The protection circuit plate is positioned at the glue frame; The electricity core comprises pole piece, and electrolyte and shell, electrolyte, pole piece are packaged in the described shell; Have input terminal, lead-out terminal and protective circuit between the two on the protection circuit plate, input terminal is electrically connected with electric core; The glue frame comprises end face and two side, and end face is parallel with the protection circuit plate, has the window that is used to draw lead-out terminal on the protection circuit plate on the end face; Have the location division on the two side, the protection circuit plate is arranged between location division and the end face, at electric core, is filled with mould-injection in the space between protection circuit plate and the glue frame.
The present invention has proposed a kind of manufacture method that need not the high-volume and capacity ratio battery of shaped bracket simultaneously.
The manufacture method of battery of the present invention comprises the steps:
Steps A: make electric core, electric core comprises pole piece, and electrolyte and shell, electrolyte, pole piece are packaged in the described shell;
Step B: make the protection circuit plate, have input terminal, lead-out terminal and protective circuit between the two on the protection circuit plate; Lead-out terminal comprises positive terminal, negative terminal;
Step C: make the glue frame, the glue frame comprises end face and two side, has the window that is used to draw lead-out terminal on the protection circuit plate on the end face, has the location division on the two side;
Step D: put into the glue frame in injection mold, the protection circuit plate is placed in the glue frame between the location division and end face, have pilot pin on the injection mold, pilot pin presses closer the protection circuit plate; Input terminal is electrically connected with electric core on the protection circuit plate;
Step e: inject mould-injection then in mould, mould-injection enters electric core, in the space between protection circuit plate and the glue frame, and cooling forming then.
Adopt technical solution of the present invention, need not to re-use shaped bracket, reduced the cost of making shaped bracket, reduced the step of assembling shaped bracket in the manufacture craft, make battery manufacturing process further simplify, prevented effectively that also mould-injection in the injection moulding process from covering the appearance of the problem of lead-out terminal, simultaneously owing to do not re-use shaped bracket, increase the space of inside battery active material storage, in fact increased the volume of battery specific capacity.
[description of drawings]
Battery decomposition texture schematic diagram among Fig. 1 specific embodiment of the invention embodiment 1;
Electric core schematic diagram among Fig. 2 specific embodiment of the invention embodiment 1;
Adhesive frame structure schematic diagram among Fig. 3 specific embodiment of the invention embodiment 1;
Schematic diagram before wiring board is assembled in the glue frame among Fig. 4 specific embodiment of the invention embodiment 1;
A place enlarged drawing structural representation among Fig. 5 Fig. 4;
Wiring board is assembled to schematic diagram in the glue frame among Fig. 6 specific embodiment of the invention embodiment 1;
B place enlarged drawing structural representation among Fig. 7 Fig. 6;
Battery decomposition texture schematic diagram among Fig. 8 specific embodiment of the invention embodiment 2;
Adhesive frame structure schematic diagram among Fig. 9 specific embodiment of the invention embodiment 2;
[embodiment]
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is described in further detail below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Battery comprises electric core, protection circuit plate, glue frame and mould-injection; The protection circuit plate is positioned at the glue frame; The electricity core comprises pole piece, and electrolyte and shell, electrolyte, pole piece are packaged in the described shell, has input terminal, lead-out terminal and protective circuit between the two on the protection circuit plate, and lead-out terminal comprises positive terminal, negative terminal; Input terminal is electrically connected with electric core; The glue frame comprises end face and two side, and end face is parallel with the protection circuit plate, has the window that is used to draw lead-out terminal on the protection circuit plate on the end face; Have the location division on the two side, the protection circuit plate is arranged between location division and the end face, at electric core, is filled with mould-injection in the space between protection circuit plate and the glue frame.
As required, lead-out terminal generally also has the temperature sense terminal, and whether with induced cell internal temperature value more than expected whether, it is working properly to estimate battery then.Certainly, also the temperature sense terminal can be set.
The glue frame can have different selections, and the glue frame can have only an end face and two side, and the two side is shorter, becomes a plastic cement extremity piece like this, and the plastic cement extremity piece is installed on the end of electric core; Lead to electrode on this end, be used for the electric energy of electric core is drawn, can be referred to as electrode leads to client; The electrode leads to client of flexible package electricity core can be drawn positive and negative lug, and positive and negative lug is connected with input terminal on the protection circuit plate; The electrode leads to client of duricrust electricity core is generally cover plate, cover board body and on rivet be electrically connected with input terminal on the protection circuit plate as electrode; The protection circuit plate then to electric core, is filled mould-injection in the space between protection circuit plate and the glue frame in the plastic cement extremity piece.The back protection circuit plate soon of mould-injection cooling is fixed in the plastic parts and with plastic parts and electric core and links into an integrated entity.
Certainly the two side of glue frame also can be provided with longer, such as equally long or longer slightly than electric core length with electric core length, like this, electric core also can be placed in the space between glue frame end face and the two side, preferably can also comprise a bottom surface, surround the space of placing electric core and protection circuit plate between end face, two sidewalls and the bottom surface; In a word, the glue frame among the present invention is not limited to any form, as long as have end face and two sides, has the location division on the two sides, the protection circuit plate is placed between location division and the end face, and need not gets final product by shaped bracket.
The effect of location division is the position of limiting protecting wiring board, and its shape and size and unrestricted will have detailed description in embodiment 1.
Present embodiment will be introduced a kind of Battery And Its Manufacturing Methods in detail, as shown in Figure 1, comprise electric core 1, and electric core is a flexible package electricity core in the present embodiment, protection circuit plate 4, glue frame 5 and mould-injection 6; Electricity core 1 and protection circuit plate 4 are positioned at glue frame 5; Electricity core 1 is connected with employing connecting band 3 in 4 examples of protection circuit plate, and connecting band can be welding, has lead-out terminal on the protection circuit plate 4, and lead-out terminal comprises positive terminal, negative terminal, temperature sense terminal; Input terminal is a pad on the protection circuit plate 4, and pad comprises positive terminal pad, negative terminal pad; It connects respectively by connecting band 3, and positive and negative lug 10 is electrically connected on the electric core 1.
For preventing connecting band 3 and 4 short circuits of protection circuit plate, can on connecting band 3, wrap insulating barrier, such as fire retardant kraft paper 2, fire retardant kraft paper 2 is compared conventional adhesive plaster, its advantage: 1. be not easy to be pierced through 2. environmental protection more by metal sundries.Also must stick labeling 7 before general battery dispatches from the factory, stick various information on the labeling 7, such as: operation instruction, warning explanation, capacity explanation, overcharged voltage explanation or the like.
Mould-injection 6 can be selected for use and be fit to low-pressure injection molding glue, adopts the Henkel PUR in this example, illustrates, the Henkel PUR shown in Fig. 1 just indicates to inject the Henkel PUR in glue frame 5, is not that the Henkel PUR presents shape as shown after injection moulding.The PUR shaping form is according to spacing decision before the battery injection moulding.
As shown in Figure 3, present embodiment glue frame 5 comprises end face 51, bottom surface 53 and two side 52,54, and end face 51 is parallel with protection circuit plate 4, has the window that is used to expose lead-out terminal on the protection circuit plate 4 on the end face 51; Have the location division on the two side 52,54, protection circuit plate 4 is between location division and end face 51, and mould-injection 6 low temperature are injection-moulded in electric core 1, in the space between protection circuit plate 4 and the glue frame 5.
Infer easily, obviously glue frame 5 can also be provided with one wide, forms the cuboid shelly of opening; The plastic cover that can also be provided for sealing at this opening part.As long as have end face 51, bottom surface 53, two side 52,54, have the location division on the two side 52,54 and get final product.
In the present embodiment from two sidewalls 52,54 in glue frame 5 hollow space respectively stretch out a locating piece 55.Present embodiment preferably is provided with glue-feeder 56, glue-feeder 56 is arranged on glue frame 5 sidewalls that close on the place, location division, such as below locating piece 55, being provided with a glue-feeder 56, be used for when carrying out injection moulding, mould-injection 6 is incorporated into the glue frame 5 from this glue-feeder 56, can fully mould-injection 6 be guided to glue frame 5 inside everywhere.Obviously the position of glue-feeder 56 is also unrestricted, as long as mould-injection 6 can be incorporated into completely the space of filling in the glue frame 5 between electric core 1, protection circuit plate 4 and the glue frame 5.
The present invention is owing to no longer need shaped bracket to support protection circuit plate 4, and the shared space of shaped bracket is released, and the volume of battery specific capacity further increases, and the present invention is simple in structure, is easy to make, and greatly provides cost savings and manpower.
Lead-out terminal corresponding on the size of window and the protection circuit plate 4 is suitable; when protection circuit plate 4 is installed between the end face 51 of location division and glue frame 5; require its contact-making surface closely to contact; when injecting mould-injection 6 with assurance, mould-injection 6 can not invade lead-out terminal can not be electrically contacted with load.
As shown in Figure 2, electric core 1 is an electric core 1 well known to those skilled in the art, and electric core 1 comprises pole piece, electrolyte and shell, and electrolyte, pole piece are packaged in the shell; Pole piece comprises positive plate, barrier film, negative plate; Pole piece can be the takeup type pole piece, also can be stacked pole piece, promptly can reel and form by positive plate, barrier film, negative plate, also can pass through positive plate barrier film negative plate barrier film positive plate barrier film ... stacked successively forming.Fixing by the adhesive tape binding outside coiling or stacked good pole piece then.From pole piece, draw positive and negative lug 10.
The present embodiment shell is an aluminum-plastic composite membrane, because aluminum-plastic composite membrane is soft, and is shaped easily, can make different shape; Plastic-aluminum combined film thickness is thinner than the metal aluminum hull, and battery capacity is increased; Use the battery of aluminum-plastic composite membrane simple than aluminum-shell battery from manufacture craft.Aluminum-plastic composite membrane comprises pp glue internal layer, aluminium lamination and pp glue skin, pp glue 135 ℃ fusible, like this by hot pressing, can very easily two-layer aluminum-plastic composite membrane be welded together, and can guarantee the sealing effect.
Positive plate adopts well known to those skilled in the art getting final product, positive plate comprises positive active material, binding agent, collector, wherein, positive active material is not particularly limited, can be the common active material in this area, such as in cobalt acid lithium, lithium nickelate, LiFePO 4 and the LiMn2O4 one or more.The kind of the adhesive in the positive electrode and content are conventionally known to one of skill in the art, and the kind of plus plate current-collecting body has been conventionally known to one of skill in the art, for example can be selected from aluminium foil, Copper Foil, Punching steel strip.The making of anode sizing agent and coating method have been conventionally known to one of skill in the art.With positive active material, conductive agent, binding agent mix in solvent by a certain percentage and obtain anode sizing agent, evenly are coated on the collector, and the heated baking volatilization removes desolvates, thereby forms positive plate.
Barrier film is arranged between positive plate and the negative plate, has electrical insulation capability and liquid retainability energy.Barrier film can be selected from various barrier films used in the lithium ion battery, as polyolefin micro porous polyolefin membrane, polyethylene felt, glass mat or ultra-fine fibre glass paper.The position of barrier film, character and kind are conventionally known to one of skill in the art.
Consisting of of negative plate is conventionally known to one of skill in the art.In general, negative plate comprises collector and coating and/or is filled in negative material on the collector that negative material comprises negative electrode active material and negative pole adhesive.Negative electrode active material is not particularly limited, can use embedding of this area routine to disengage the negative electrode active material of lithium, material with carbon element for example, material with carbon element be selected from non-graphitized charcoal, graphite or the charcoal that obtains by high-temperature oxydation by polyyne family macromolecule material or pyrolytic carbon, coke, organic polymer sinter, active carbon in one or more.The kind of negative pole adhesive and content are conventionally known to one of skill in the art, for example one or more in fluorine resin and polyolefin compound such as polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), butadiene-styrene rubber (SBR), hydroxypropyl methylcellulose, sodium carboxymethylcellulose, hydroxyethylcellulose, the polyvinyl alcohol; In general, according to the difference of adhesive therefor kind, be benchmark with the weight of negative electrode active material, the content of negative pole adhesive is 0.01-10 weight %, is preferably 0.02-5 weight %.Negative material can also comprise that conductive agent to increase the conductivity of electrode, reduces the internal resistance of cell.Conductive agent is not particularly limited, and can be the cathode conductive agent of this area routine, such as in carbon black, nickel powder, the copper powder one or more.Weight with negative electrode active material is benchmark, and the content of conductive agent is 0-12 weight %, is preferably 2-10 weight %.Negative current collector can be for negative current collector conventional in the lithium ion battery, as stamped metal, and metal forming, net metal, foamed metal uses Copper Foil as negative current collector in specific embodiments of the present invention.The preparation method of described negative plate can adopt conventional preparation method.For example, with negative material and solvent, apply and/or be filled on the described collector, drying is rolled or is not rolled, and can obtain described negative plate.Wherein, drying, the method for calendering and condition are conventionally known to one of skill in the art.For example, the temperature of described drying is generally 100-150 ℃.
Electrolyte is not particularly limited, and can use the electrolyte of this area routine.Be selected from the inferior lithium (LiPF6) of hexafluorophosphoric acid, lithium perchlorate, LiBF4, hexafluoroarsenate lithium, lithium halide, chlorine lithium aluminate and the fluorocarbon based sulfonic acid lithium one or more such as electrolyte lithium salt.Organic solvent is selected chain acid esters and ring-type acid esters mixed solution for use, wherein the chain acid esters can be dimethyl carbonate (DMC), diethyl carbonate (DEC), methyl ethyl carbonate (EMC), carbonic acid first propyl ester (MPC), dipropyl carbonate (DPC) and other are fluorine-containing, sulfur-bearing or contain at least a in the chain organosilane ester of unsaturated bond, the ring-type acid esters can be ethylene carbonate (EC), propene carbonate (PC), vinylene carbonate (VC), gamma-butyrolacton (γ-BL), sultone and other are fluorine-containing, sulfur-bearing or contain at least a in the ring-type organosilane ester of unsaturated bond.The injection rate of electrolyte is generally 1.5-4.9 gram/ampere-hour, the concentration of electrolyte be generally 0.1-2.0 rub/liter.
The electricity core is encapsulated as conventionally known to one of skill in the art, such as scheme in this example, elder generation is with the therefrom doubling of aluminum-plastic composite membrane of a suitable size, claim that this fold position is a conduplication side, then the pole piece that makes is put between the aluminum-plastic composite membrane after the doubling, then all the other 3 limits except that conduplication side are sealed; So-called heat-sealing fuses together under certain pressure mutually for by heating is melted the pp layer in the two membranes to composite membrane, and during heat-sealing, positive and negative lug 10 is drawn from the relative edge of conduplication side; Be well fluid injection, can keep on one side not exclusively heat-sealing earlier, after the fluid injection or fluid injection and change into after seal this limit more fully, the injection of electrolyte also be conventionally known to one of skill in the art, so seldom describes.
Have protective circuit on the protection circuit plate 4, prevent that battery is short-circuited so that cause that battery is on fire, the generation of explosion accident.Lead-out terminal is used for being electrically connected with loading interfaces, and to provide electric energy loaded, energize drives loaded work piece.Protection circuit plate 4 can adopt the known protection circuit plate 4 of those skilled in the art, has no special requirements in the present embodiment.
Describe the manufacture method of battery in the present embodiment below in detail,, comprise the steps: as Fig. 4-shown in Figure 7
Steps A: make electric core 1, electric core 1 comprises pole piece, and electrolyte and shell, electrolyte, pole piece are packaged in the described shell, and positive and negative lug 10 is drawn from electric core 1; Pole piece comprises positive plate, barrier film, negative plate; After making electric core 1, it is changed into, with activated batteries, this part is conventionally known to one of skill in the art, no longer endures in this example and states.
Step B: make protection circuit plate 4, have input terminal, protective circuit, lead-out terminal on the protection circuit plate 4, protective circuit is between input terminal and lead-out terminal, and lead-out terminal comprises positive terminal, negative terminal, temperature sense terminal; The those skilled in the art that are fabricated to of protection circuit plate 4 know.
Step C: make glue frame 5, glue frame 5 comprises end face 51, bottom surface 53 and two side 52,54, has the window that is used to expose lead-out terminal on the protection circuit plate 4 on the end face 51, has the location division on the two side 52,54;
Step D: put into glue frame 5 in injection mold, protection circuit plate 4 is placed between glue frame 5 interior location divisions and the end face 51, have pilot pin 8 on the injection mold, pilot pin 8 presses closer protection circuit plate 4; Electric core 1 is put between location division and the bottom surface 53; Positive terminal pad is electrically connected with positive and negative lug 10 on the electric core 1 respectively with negative terminal pad on the described protection circuit plate 4;
Step e: inject mould-injection 6 then in mould, mould-injection 6 enters in the space between electric core 1, protection circuit plate 4 and the glue frame 5, then cooling forming.
Know in injection mold this area, for realize injecting the purpose of mould-injection 6 in glue frame 5, injection mold comprises anchor clamps and the glue injection channel of holding glue frame 5, and glue injection channel is connected with glue-feeder 56 on the glue frame 5; Mould-injection 6 enters glue-feeder 56 on the glue frame 5 by glue injection channel, enters into glue frame 5 then and is filled into space between electric core 1, protection circuit plate 4 and the glue frame 5.When injecting mould-injection 6 for assurance, mould-injection 6 can not invade lead-out terminal can not be electrically contacted with load.Pilot pin 8 also is set holding out against protection circuit plate 4 on the injection mold,, is provided with 3 pilot pins 8 in this example, can well withstand protection circuit plate 4, guarantee that protection circuit plate 4 and glue frame 5 end faces 51 closely cooperate as Fig. 4-shown in Figure 8.
After injection moulding is finished, on battery, stick labeling 7 again, so promptly successful manufacturing one finished product battery.
Embodiment 2
Present embodiment mainly has only an end face 51 and two side 52,54 to the glue frame, and two side 52,54 is shorter, and the situation when becoming a plastic cement extremity piece is described in detail.In the present embodiment among content and the embodiment 1 content roughly the same, some place is simple under the situation that does not influence understanding in this example of content that the front has been described.
The protection circuit plate carries out not specially provided for by mode among the embodiment 1.
As shown in Figure 9, the glue frame 5 in the present embodiment is a plastic cement extremity piece, still adopts the mode in the foregoing description 1 to describe, and this glue frame comprises end face 51 and two side 52,54; Have the location division on the two side, protection circuit plate 4 is placed between location division and the end face; One glue-feeder 56 is arranged on the position of closing on the location division on the sidewall;
Battery as Fig. 8, shown in Figure 9, is made earlier electric core 1 when mounted in this example, and the cover plate in this example on the electric core 1 is called electrode leads to client, comprise cover board body and on rivet; Both are electrically connected with input terminal on the protection circuit plate as two electrodes of electric core respectively, promptly rivet as anodal, then cover board body is as negative pole, if rivet is as negative pole, then cover board body is as positive pole.Be provided with PTC (being semistor) between the positive terminal pad of correspondence or the negative terminal pad on rivet and the protection circuit plate, preferably be provided with face pad 11 above the rivet, face pad 11 is provided with aperture and passes for rivet, prevents that PTC is connected short circuit with cover plate.Connect by connecting band 3 between the negative terminal pad of correspondence or the positive terminal pad on cover board body and the protection circuit plate.
When injection moulding, roughly the same with the method among the embodiment 1, in injection mold, put into glue frame 5 and electric core 1, protection circuit plate 4 is placed between glue frame 5 interior location divisions and the end face 51, have pilot pin 8 on the injection mold, pilot pin 8 presses closer protection circuit plate 4; Positive terminal pad is electrically connected with electric core respectively with negative terminal pad on the protection circuit plate 4;
In mould, inject mould-injection 6 then, mould-injection 6 from glue-feeder enters space between electric core 1, protection circuit plate 4 and the glue frame 5, cooling forming then.
Stick labeling then and promptly can be a finished product battery.
Claims (16)
1. a battery comprises electric core, protection circuit plate, glue frame and mould-injection; Described protection circuit plate is positioned at the glue frame;
The electricity core comprises pole piece, and electrolyte and shell, described electrolyte, pole piece are packaged in the described shell;
Have input terminal, lead-out terminal and protective circuit between the two on the protection circuit plate, input terminal is electrically connected with electric core;
The glue frame comprises end face and two side, and end face is parallel with the protection circuit plate, has the window that is used to draw lead-out terminal on the protection circuit plate on the end face; Have the location division on the two side, the protection circuit plate is arranged between location division and the end face, at electric core, is filled with mould-injection in the space between protection circuit plate and the glue frame.
2. battery as claimed in claim 1; it is characterized in that: described glue frame also comprises the bottom surface; the glue frame has the hollow space that holds electric core and protection circuit plate; the location division is with this hollow space separated into two parts; a part is the space between location division and the bottom surface; be used to hold electric core, another part is the space between location division and the end face, is used to hold the protection circuit plate.
3. battery as claimed in claim 1 is characterized in that: described glue frame is the plastic cement extremity piece, and described plastic cement extremity piece is installed on the electrode leads to client of electric core.
4. as claim 2 or 3 described batteries, it is characterized in that: glue frame sidewall is provided with glue-feeder, is used for mould-injection is injected into electric core, in the space between protection circuit plate and the glue frame.
5. battery as claimed in claim 4 is characterized in that: described glue-feeder is arranged on the glue frame sidewall that closes on the location division.
6. as claim 2 or 3 described batteries, it is characterized in that: two locating pieces of described location division for from sidewall, in the glue frame, stretching out.
7. battery as claimed in claim 1 is characterized in that: described input terminal is a pad, and pad comprises positive terminal pad, negative terminal pad, and positive terminal pad is electrically connected with positive terminal by protective circuit, and negative terminal pad is electrically connected with negative terminal by protective circuit; Positive terminal pad, negative terminal pad are electrically connected with electric core respectively by connecting band.
8. battery as claimed in claim 5 is characterized in that: described connecting band is provided with insulating barrier, to prevent connecting band and protection circuit plate contact short circuit.
9. the manufacture method of a battery comprises the steps:
Steps A: make electric core, electric core comprises pole piece, and electrolyte and shell, described electrolyte, pole piece are packaged in the described shell;
Step B: make the protection circuit plate, have input terminal, lead-out terminal and protective circuit between the two on the protection circuit plate; Described lead-out terminal comprises positive terminal, negative terminal;
Step C: make the glue frame, the glue frame comprises end face and two side, has the window that is used to draw lead-out terminal on the protection circuit plate on the end face, has the location division on the two side;
Step D: put into the glue frame in injection mold, the protection circuit plate is placed in the glue frame between the location division and end face, have pilot pin on the injection mold, pilot pin presses closer the protection circuit plate; Input terminal is electrically connected with electric core on the described protection circuit plate;
Step e: inject mould-injection then in mould, mould-injection enters electric core, in the space between protection circuit plate and the glue frame, and cooling forming then.
10. manufacture method as claimed in claim 9; it is characterized in that: described glue frame also comprises the bottom surface; the glue frame has the hollow space that holds electric core and protection circuit plate; the location division is with this hollow space separated into two parts; a part is the space between location division and the bottom surface; be used to hold electric core, another part is the space between location division and the end face, is used to hold the protection circuit plate.
11. manufacture method as claimed in claim 9 is characterized in that: described glue frame is the plastic cement extremity piece, and described plastic cement extremity piece is installed on the electrode leads to client of electric core.
12. as claim 10 or 11 described manufacture methods, it is characterized in that: on glue frame sidewall glue-feeder is set, mould-injection is filled in the space between electric core, protection circuit plate and the glue frame by described glue-feeder.
13. manufacture method as claimed in claim 12 is characterized in that: described glue-feeder is arranged on the glue frame sidewall that closes on the location division.
14., it is characterized in that: two locating pieces of described location division for from sidewall, in the glue frame, stretching out as claim 10 or 11 described manufacture methods.
15. manufacture method as claimed in claim 9, it is characterized in that: described input terminal is a pad, and pad comprises positive terminal pad, negative terminal pad, positive terminal pad is electrically connected with positive terminal by protective circuit, and negative terminal pad is electrically connected with negative terminal by protective circuit; Positive terminal pad, negative terminal pad are electrically connected with electric core respectively by connecting band.
16. manufacture method as claimed in claim 9 is characterized in that: described connecting band is provided with insulating barrier, to prevent connecting band and protection circuit plate contact short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102172098A CN101728572B (en) | 2008-10-31 | 2008-10-31 | Battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102172098A CN101728572B (en) | 2008-10-31 | 2008-10-31 | Battery and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101728572A true CN101728572A (en) | 2010-06-09 |
| CN101728572B CN101728572B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102172098A Expired - Fee Related CN101728572B (en) | 2008-10-31 | 2008-10-31 | Battery and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024918A (en) * | 2010-11-08 | 2011-04-20 | 深圳市睿德电子实业有限公司 | Method for controlling size of aluminum-shell battery along length direction and low-pressure injection molding aluminum-shell battery |
| CN102024919A (en) * | 2010-11-08 | 2011-04-20 | 深圳市睿德电子实业有限公司 | Polymer battery low-pressure injection molding packaging method and low-pressure injection molding polymer battery |
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