CN207250661U - It is a kind of to encapsulate lithium-ion electric core in the duricrust that circuit module is managed built in anode - Google Patents

Abstract

It is a kind of to encapsulate lithium-ion electric core in the duricrust that circuit module is managed built in anode,Cathode cover cap module and cathode metal cylinder are by being assembled to form a sealing space,Lithium-ion electric core cathode film isolation film negative electrode film assembly is set in sealing space,Lithium-ion electric core cathode film isolation film negative electrode film assembly cathode and cathode metal cylinder form cathode and are electrically connected,Injection electrolyte in sealing space,Cylinder is outer by means of heat-shrinkable film insulating wrapped,In cathode cover cap module,One management circuit module is set,Management circuit module forms anode with cathode cover cap box hat and is electrically connected,The cathode and anode of management circuit module and lithium-ion electric core cathode film isolation film negative electrode film assembly are electrically connected,Management circuit module manages and protects circuit by lithium-ion electric core charging voltage and current,Lithium-ion electric core discharge voltage current management and protection circuit,Charging and discharging intelligent recognition control circuit three parts are formed.

Description

It is a kind of to encapsulate lithium-ion electric core in the duricrust that circuit module is managed built in anode

Technical field

A kind of lithium-ion electric core is the utility model is related to, particularly the lithium-ion electric core of duricrust encapsulation.Lithium-ion electric core is The core energy storage component of various lithium ion batteries, is widely used in the energy supply of various mobile equipment, such as laptop electricity Pond, battery of mobile phone, bluetooth equipment battery, power tool battery, toy battery, have a vast market application space.

Background technology

At present, lithium-ion electric core obtains extensive market application, is common in the lithium battery interior of miscellaneous mobile equipment. Common lithium-ion electric core, can be divided into two kinds from the point of view of encapsulation characteristic：One kind is duricrust encapsulation lithium-ion electric core, and one kind is Soft Roll Polymer lithium ion battery cell.Lithium-ion electric core inner, has by band collector cathode diaphragm, isolation diaphragm and with collector negative electrode film Piece passes through winding process, obtains lithium-ion electric core cathode film isolation film negative electrode film assembly, lithium-ion electric core cathode film is isolated Film negative electrode film assembly is placed into a sealing space, injects electrolyte, lithium-ion electric core is obtained by chemical conversion；Duricrust encapsulates Lithium-ion electric core housing combination form is common two kinds, and one kind is that positive cover hat cone group is hermetically sealed plus anode steel cylinder, another Kind is that cathode steel cylinder is hermetically sealed plus cathode cover cap module, two kinds of structure types.

Duricrust encapsulates lithium-ion electric core inner, is that lithium-ion electric core cathode film isolation film negative electrode film assembly is positioned over lid In the confined space that cap and steel cylinder are formed, cathode and the shell cathode electricity of lithium-ion electric core cathode film isolation film negative electrode film assembly Connection, the anode of lithium-ion electric core cathode film isolation film negative electrode film assembly are electrically connected with shell anode, injection in confined space Electrolyte, metal shell is by means of heat-shrinkable film insulating wrapped.

Since the use condition of lithium-ion electric core is harsh, it is necessary to which special management circuit module carries out Charge Management, puts Fulgurite is managed and safeguard protection, and lithium-ion electric core output voltage changes between 3.0V-4.4V, so plus management circuit mould Lithium-ion electric core after block, could meet the voltage and current requirement of input and output, just there is safeguard protection, could enter consumption city Directly apply field.The duricrust encapsulation lithium-ion electric core that manufacturing enterprise's production at present is dispatched from the factory, is substantially free of management circuit module, so The duricrust encapsulation lithium-ion electric core product of production must enter back into cell package factory, could enter after increase management circuit module Market is applied, this just brings the loss of market versatility, and consumer cannot choose at random, certainly as the use of dry cell By combination and arbitrarily replacement.If duricrust encapsulation lithium-ion electric core solves the general sex chromosome mosaicism in market, output voltage is controlled, The characteristic of charging and discharging and higher energy density are repeated plus it, and long circulation life advantage, the synthesis of consumer make The cost using dry cell will be significantly less than with cost, usage experience is more preferable, but also can avoid largely using dry cell big The discarded environmental nuisance brought of amount, preferably protects environment.

There is part document to be related to management circuit module being placed in the battery container of sealing, solve the electricity of lithium-ion electric core Pressure and current management and safety protection problem, facilitate consumer directly to use.But its structure type is used Soft Roll polymer lithium Ion battery core, after managing circuit module in electrical connection, is encapsulated in the box hat cylinder of sealing, becomes a duricrust encapsulation lithium-ion electric Core.This structure type, belongs to repeatedly encapsulation lithium-ion electric core, can waste significant portion structure space, causes space use Rate declines, so that lithium-ion electric core energy density is largely lost, battery capacity is low, while repeatedly encapsulation causes production cost to increase Height, makes the reduction of its market value.

The content of the invention

In order to overcome existing lithium-ion electric core to cannot directly enter market application field, while solve other technologies scheme The problem of structure space loss late is high, and production cost is high, facilitates unrestricted choice in consumer's use, independent assortment and freedom more Change, directly allow lithium-ion electric core to enter consumption market.

The utility model, which employs, after management circuit module Miniaturization Design, to be arranged on duricrust encapsulation lithium-ion electric core Cathode cover cap module internal, consumer can directly use, it is not necessary to consider external circuits, it is not required that external protective device. Simultaneously as encapsulating lithium-ion electric core and management circuit module integrated design using by duricrust, electricity has been maximally utilised Core space, it is possible to improve the energy density of lithium-ion electric core to greatest extent, product is reduced using a packaging technology Production cost.

Technical solution is used by the utility model solves its technical problem：The lithium-ion electric core of duricrust encapsulation, anode Block module and cathode metal cylinder set lithium-ion electric core cathode film by being assembled to form a sealing space in sealing space Isolation film negative electrode film assembly, lithium-ion electric core cathode film isolation film negative electrode film assembly cathode and cathode metal cylinder are formed just Pole is electrically connected, injection electrolyte in sealing space, and cylinder is outer by means of heat-shrinkable film insulating wrapped, in cathode cover cap module, sets One management circuit module, management circuit module and cathode cover cap box hat form anode and are electrically connected, manage circuit module and lithium from The cathode and anode of sub- battery core cathode film isolation film negative electrode film assembly are electrically connected, and management circuit module is by lithium-ion electric core Charging voltage and current management and protection circuit, lithium-ion electric core discharge voltage current management and protection circuit, charging and discharging intelligence Recognition control circuit three parts are formed.Lithium-ion electric core is when being electrically charged, the managed circuit module management of external charge power supply After control, it can be filled according to the charging voltage and current value of setting to lithium-ion electric core cathode film isolation film negative electrode film assembly Electricity, is carried out at the same time charging safeguard protection；For lithium-ion electric core in external electric discharge, management circuit module can intelligently know load progress Not, and to discharge voltage and electric current it is managed and controls, ensures externally to discharge according to the specific voltage and current value of setting defeated Go out, be carried out at the same time electric discharge safeguard protection.

The beneficial effects of the utility model are：Charged and put in the inside negative pole end of duricrust encapsulation lithium-ion electric core Fulgurite is managed and safeguard protection, and battery core can work according to the voltage and current parameter set, and product can be directly entered consumption Market.Due to may be set to the output voltage values and current value of dry cell, the utility model product can be designed as alternative dry electricity The product in pond, or it is arranged to the application product that can meet other specific uses.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples：

Fig. 1 is the sectional view of the utility model one embodiment.

Fig. 2 is the schematic block circuit diagram of the management circuit module.

1. positive pole steel shell cylinder in figure, 2. cathode electric connection lines, 3. heat-shrinkable T bush, 4. lithium-ion electric core cathode film isolation films Negative electrode film assembly, 5. electrolyte, 6. lithium-ion electric core cathode film isolation film negative electrode film assembly anode electric connection lines, 7. lithiums from Sub- battery core cathode film isolation film negative electrode film assembly cathode electric connection line, 8. management circuit modules, the sealing of 9. cathode cover cap modules Circle, 10. anode electric connection lines, 11. cathode cover cap box hats, 12. charging voltage and current management and protection circuit, 13. charging and dischargings Intelligent recognition control circuit, 14. discharge voltage current managements and protection circuit.

Embodiment

In Fig. 1, cathode cover cap box hat (11), management circuit module (8) and cathode cover cap module sealing ring (9) composition are negative Polar cap hat cone group, cathode cover cap module form sealing space with positive pole steel shell cylinder (1) sealing, lithium are provided with sealing space Ion battery core cathode film isolation film negative electrode film assembly (4), positive pole steel shell cylinder (1) and lithium-ion electric core cathode film isolation film are born Pole film assembly (4) is electrically connected by cathode electric connection line (2), lithium-ion electric core cathode film isolation film negative electrode film assembly (4) Pass through lithium-ion electric core cathode film isolation film negative electrode film assembly anode electric connection line (6) lithium ion with management circuit module (8) Battery core cathode film isolation film negative electrode film assembly cathode electric connection line (7) is electrically connected, management circuit module (8) and negative cover Cap box hat (11) is electrically connected by anode electric connection line (10), injection electrolyte (5) in sealing space, battery core outside heat Heat-Shrinkable Tubings (3) coat, and form one and encapsulate lithium-ion electric core in the duricrust that circuit module is managed built in anode.

In fig. 2, circuit module (8) is managed by charging voltage and current management and protection circuit (12), charging and discharging intelligence Recognition control circuit (13) and discharge voltage current management and protection circuit (14) are formed.It is external when charging to lithium-ion electric core Power supply is loaded between positive pole steel shell cylinder (1) and cathode cover cap box hat (11), charging and discharging intelligent recognition control circuit (13) Identification is to send instruction after charging accesses, and closes discharge voltage current management and protection circuit (14), opens charging voltage and current Management and protection circuit (12), management circuit module (8) is just with the voltage and current value of a setting to lithium-ion electric core cathode Film isolation film negative electrode film assembly (4) charges, and is carried out at the same time charge protection；When lithium-ion electric core discharges in use, fill Instruction, the management of charge closing voltage and current and protection electricity are sent after discharge of electricity intelligent recognition control circuit (13) identification load access Road (12), opens discharge voltage current management and protection circuit (14), is stored in lithium-ion electric core cathode film isolation film negative electrode film Energy in assembly (4), by managing the control of circuit module (8), is carried out to negative with the voltage and current value of a setting Placing electricity, is carried out at the same time discharge prevention.Because of the management and control of management circuit module (8), lithium-ion electric core can connect By different input voltages, can also externally be discharged with different output voltages.Such as charged with 5V, discharged with 1.5V, So consumer can charge the utility model with phone charger, and loading after charging complete needs 1.5V voltages Work in equipment, more the utility model products pass through connection in series-parallel, it is possible to achieve different voltage and capacity provide, this set It can be ensured with providing technology for alternative dry battery applications.

Claims (2)

1. a kind of encapsulate lithium-ion electric core in the duricrust that circuit module is managed built in anode, cylinder is outer by means of heat-shrinkable film insulating bag Cover, it is characterized in that：Cathode steel cylinder and cathode cover cap module insulated enclosure, in cathode cover cap module, set a management circuit Module, the cathode and anode of the lithium-ion electric core cathode film isolation film negative electrode film assembly in sealing space pass through negative cover hat cone Group sealing ring is electrically connected with the management circuit module in positive cover hat cone group, and management circuit module forms negative with cathode cover cap box hat Pole is electrically connected, and management circuit module cathode forms cathode with cathode steel cylinder through cathode cover cap module sealing ring and is electrically connected, and seals Electrolyte is marked with space.

2. a kind of duricrust in management circuit module built in anode according to claim 1 encapsulates lithium-ion electric core, it is special Sign is that management circuit module manages and protect circuit, lithium-ion electric core discharge voltage electric current by lithium-ion electric core charging voltage and current Management and protection circuit, charging and discharging intelligent recognition control circuit three parts are formed.