WO2018045720A1

WO2018045720A1 - Solid-state battery manufacturing method, solid-state battery and terminal

Info

Publication number: WO2018045720A1
Application number: PCT/CN2017/073732
Authority: WO
Inventors: 李九兴; 刘修田; 段顶柱; 张恒; 宋斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-09-07
Filing date: 2017-02-16
Publication date: 2018-03-15
Also published as: CN107799836A

Abstract

A solid-state battery manufacturing method, comprising: determining spaces between components of a terminal as filling regions of a solid-state battery; designing and filling the solid-state battery according to the filling regions. The method may make full use of the spaces between the components, and at the same time improve the battery safety.

Description

Solid state battery manufacturing method, solid state battery and terminal

Technical field

The present disclosure relates to battery design technology in the field of terminals, and in particular, to a solid battery manufacturing method, a solid state battery, and a terminal.

Background technique

With the development of the terminal's intelligence and thinness, the safety performance of the battery carried by the terminal and the influence of the shape and size of the battery on the design of the terminal structure have become more and more concerned.

At present, most of the batteries used in the terminal are lithium-ion batteries, and lithium-ion batteries use liquid electrolytes, which are flammable and explosive. At the same time, lithium-ion batteries need to be sealed and protected, and have a hard protective layer on the periphery, which is often made into a flat rectangular shape, a cylindrical shape, etc. Regular shape, etc., its structural design has a large restriction on the size of the whole machine, and it is difficult to meet the requirements of the ever-changing terminal product development.

Therefore, the existing lithium-ion battery constitutes a problem: First, there is a safety hazard, the electrolyte is flammable and explosive under high temperature overcharge; the second is the structural design of the seal and protection, and it is easy to limit the overall structural design of the terminal.

Summary of the invention

In order to solve the above technical problem, the embodiments of the present disclosure are intended to provide a solid-state battery manufacturing method, a solid-state battery, and a terminal. The method reduces the inherent space requirement of a conventional lithium ion battery, and has a flexible design, and replaces a conventional lithium ion battery with a solid-state battery to improve safety.

The technical solution of the present disclosure is implemented as follows:

Embodiments of the present disclosure provide a method of fabricating a solid state battery, the method comprising:

Determining a gap portion between components inside the terminal as a filling area of the solid battery;

The solid state battery is designed and filled according to the filling area.

In the above solution, the filling area includes at least one of the following:

a gap between the shield inside the terminal and the structural member;

a gap between the structural member inside the terminal and the circuit board;

a gap between the shields inside the terminal;

The gap between the shield inside the terminal and the device.

In the above solution, the designing and filling the solid state battery according to the filling area comprises:

Dividing the filling area into different types of spatial areas according to a structure type of the filling area, wherein the space area comprises a thin layer space, a block space and a cylindrical space;

Solid-state batteries of different structural types are designed and filled according to the shape and size of the space region.

In the above solution, the solid state of different structure types is designed and filled according to the shape and size of the space region. The battery includes:

Designing and filling a solid thin film battery according to the shape and size of the thin layer space;

Designing and filling a block-shaped laminated solid battery according to the shape and size of the block space;

Designing and filling a ring-shaped laminated solid state battery according to the shape and size of the cylindrical space;

Wherein the bulk laminated solid battery and the annular laminated solid battery comprise a plurality of layers of a cathode material, a cathode material, and a dielectric material.

In the above solution, the designing and filling the solid-state thin film battery according to the shape and size of the thin layer space includes:

Depositing a positive electrode material, a negative electrode material, and a dielectric material of the battery in the thin layer space;

The positive and negative electrodes of the battery are taken out from the positive electrode material and the negative electrode material.

In the above solution, the method further includes:

Combining the solid state battery with components inside the terminal to be assembled into one integral component; or

The electrode material or dielectric material of the solid state battery is formed as part of the assembly inside the terminal.

In the above solution, the method further includes:

The solid state battery of any one of the filling regions is connected to the solid battery according to the positive and negative electrodes of the battery to the solid battery of the other region, or the cells of each region are connected to be completely independent batteries.

In the above solution, the method further includes:

The management of the solid state battery includes at least one of the following: high temperature protection, low temperature protection, power supply control, over voltage protection, over current protection, overcharge protection, and over discharge protection.

Embodiments of the present disclosure provide a solid state battery that is a battery fabricated according to the above method.

An embodiment of the present disclosure provides a terminal, including: the solid state battery described above, where the solid state battery is used to supply power to each terminal module of the terminal.

Embodiments of the present disclosure provide a solid-state battery manufacturing method, a solid-state battery, and a terminal, which are designed and filled according to the filling area by determining a filling area between components inside the terminal as a filling area of the solid battery. The method can fully utilize the gap portion between the components, reduce the inherent space requirement of the conventional lithium ion battery, and has flexible design and design, and provides conditions for the slim and light design of the terminal, and replaces the traditional lithium ion battery with the solid battery to overcome the flammability of the electrolyte. Safety issues such as explosives and safety.

DRAWINGS

1 is a schematic flow chart of a method for fabricating a solid state battery according to an embodiment of the present disclosure;

2 is a partial structural view of a conventional terminal;

FIG. 3 is a schematic structural diagram of a terminal battery provided by an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure.

The method for manufacturing a solid-state battery provided by the embodiments of the present disclosure is applicable to a battery solution of various terminals, and is particularly suitable for a battery solution of a thin and light terminal. The all-solid battery fabricated by the method has the characteristics of no sealing and protection, and has a flexible structure design. It is not limited by space, shape, etc., according to the space in the design structure of the terminal product, the corresponding battery is designed, and the terminal structure gap is fully utilized.

1 is a schematic flow chart of a method for fabricating a solid state battery according to an embodiment of the present disclosure. As shown in FIG. 1 , the method includes:

Step 101: Determine a gap portion between components inside the terminal as a filling area of the solid state battery.

In this step, the components inside the terminal include: structural components: structural parts for maintaining the shape of the terminal, reinforcing the terminal, and protecting other modules of the terminal, and other functional parts that are gradually integrated into the structural components, such as speakers and radio frequency antennas. Wait. Circuit board: A board that contains conductors and media for circuit routing. Shield: Various metal and non-metal structures used to achieve shielding. Device: A component that implements an electrical function, including circuit modules that implement a variety of different functions. The gap portion between the above components is taken as a filling region of the solid state battery.

It should be noted that the description of the above components includes but is not limited to the listed concepts. The above definitions are general descriptions, but there are no clear boundaries between the concepts.

Step 102: Design and fill a solid state battery according to the filling area.

In this step, after the filling area of the solid state battery is determined, a solid state battery is designed in the filling area and the designed solid state battery is filled into the filling area. Specifically, the shape and size of the solid state battery to be filled may be designed according to the shape and size of the filling area, and then the electrode material and the dielectric material of the battery are filled in the filling area according to the shape and size requirements. The filled solid-state battery is not limited to one, and can be divided into a plurality of different kinds of filling regions according to the type of gap between components, thereby filling a plurality of flexible and solid-state batteries.

In this embodiment, the filling area between the components inside the terminal is determined as a filling area of the solid battery, and the solid battery is designed and filled according to the filling area. The method designs a solid-state battery according to the structural space of the terminal product, can fully utilize the gap portion between the components, reduces the inherent space requirements of the conventional lithium ion battery, and has flexible design and various conditions, and provides conditions for the thin and light design of the terminal, and simultaneously uses the solid state. The battery replaces the traditional lithium-ion battery, overcomes the safety problems such as flammability and explosion of the electrolyte, and improves safety.

In an embodiment, the filling area comprises:

a gap between the shield inside the terminal and the structural member;

a gap between the structural member inside the terminal and the circuit board;

a gap between the shields inside the terminal;

The gap between the shield inside the terminal and the device.

Specifically, FIG. 2 is a partial structural physical diagram of a conventional terminal. As shown in Figure 2, the area 101 is a battery module that occupies a large volume of the terminal. Embodiments of the present disclosure can make full use of the following areas of the terminal as a filled area of a solid battery. The methods of the present disclosure include, but are not limited to, subordinate species spaces.

Utilizing the gap between the structural member and the circuit board;

Utilizing the gap between the shields;

Utilizing the gap between the shield and the device;

Use the gap between the shield and the structural member.

The use of all the above spaces as the battery space to make an all-solid-state battery saves the space of the galvanic cell module 101, reduces the overall volume requirement of the terminal, reduces the gap between the modules of the terminal, and improves the overall heat dissipation effect of the terminal. In the same situation, you can increase the available space and increase the battery capacity.

In an embodiment, the designing and filling the solid state battery according to the filling area comprises:

Dividing the filling area into different types of spatial areas according to a structure type of the filling area, wherein the space area comprises a thin layer space, a block space, and a cylindrical space;

In an embodiment, the designing and filling the solid state batteries of different structural types according to the shape and size of the space region comprises:

Specifically, according to the structure type of the filling area, the filling area may be divided into a thin layer space, a block space, a cylindrical space, etc., and then solid battery of different structure types is prepared according to the shape and size of the thin layer space, including but not Limited to: solid state thin film batteries, block laminated solid state batteries, ring stacked solid state batteries. Wherein, the bulk laminated solid battery and the annular laminated solid battery comprise a plurality of layers of a cathode material, a cathode material, and a dielectric material.

In an embodiment, the designing and filling the solid state thin film battery according to the shape and size of the thin layer space comprises:

Specifically, a process of fabricating a solid thin film battery will be described by taking a thin gap between the shield and the structural member as an example. According to the specific structural shape and the gap size of the thin layer space, the battery positive electrode material, the negative electrode material and the dielectric material are stacked in the thin layer space; the positive and negative electrodes of the battery are taken out from the positive electrode material and the negative electrode material for use in each terminal module.

A thin film battery can also be formed as above for a very thin gap between the structural member and the circuit board.

For the block space between the shield and the shield, according to the specific space size and shape, a corresponding multi-layer solid battery is designed, which comprises a plurality of positive electrode materials, a negative electrode material and a dielectric material, and the positive and negative electrodes of the battery are taken out from the laminate.

For the cylindrical space inside the terminal, a ring-shaped laminated solid battery is designed, which comprises a plurality of positive electrode materials, a negative electrode material and a dielectric material, and the positive and negative electrodes of the battery are taken out from the laminate.

In an embodiment, the detailed design of the solid state battery can be combined with a smaller space for a more optimized design and more space utilization. For example, the gap between smaller devices, the gap between smaller structures.

In an embodiment, the method further includes:

Specifically, after the terminal structure is designed, the solid-state battery is processed as a whole with the circuit board as a whole, and is assembled into a terminal as a part; or, the solid-state battery can be processed as a whole as a part of the structural member. The design of such solid-state batteries is assembled into terminals as part of the structural design. For the same reason, the solid state battery and the shield or other components of the terminal can be processed as above.

In an embodiment, the method further includes:

A solid-state battery fabricated in any of the filling regions is connected to a solid battery according to a solid-state battery fabricated in the positive and negative electrodes of the battery, or a battery in each region is connected as a completely independent battery.

Specifically, each battery module designed according to the terminal structure is directly connected to an integral battery through an electrode or an electrolyte, or a partially connected or completely independent battery module. The connection between the positive and negative terminals of the battery is jointly controlled by the terminal together with the battery connection of other parts, or is separately controlled for a terminal or a module of the terminal.

In an embodiment, the management and usage of each battery module is designed according to a specific terminal. Including high temperature protection, low temperature protection, power supply control, over voltage protection, over current protection, over charge protection, over discharge protection, etc.

Embodiments of the present disclosure provide a solid state battery that is a battery fabricated according to the above solid state battery fabrication method.

The solid-state battery manufacturing solution of the embodiment of the present disclosure further has the technical effect of reducing the air gap inside the terminal, improving the overall heat dissipation efficiency of the terminal, and fully utilizing the internal space gap of the terminal to improve the battery capacity of the terminal.

The embodiment of the present disclosure further provides a terminal, comprising: the solid state battery described above, wherein the solid state battery is used to supply power to each terminal module of the terminal.

3 is a schematic structural diagram of a terminal battery according to an embodiment of the present disclosure. As shown in FIG. 3, the terminal includes: a terminal module 1, a terminal module 2, a terminal module 3, and a battery module, wherein the battery modules are distributed between the terminal modules. Each terminal module includes: a circuit module such as a device of the terminal; a structural member such as a steel plate, a front shell and a rear shell; a component module such as a camera, a display screen, a touch screen, and other functional modules. The battery module is designed according to the space in the design structure of the terminal product, has the characteristics of no need of sealing and protection, has flexible structure design, is not limited by space, shape, etc., and can fully utilize the gap of the terminal structure.

Those skilled in the art will appreciate that embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above description is only for the preferred embodiments of the present disclosure, and is not intended to limit the scope of the disclosure.

Industrial applicability

The present disclosure is applicable to the battery design technology in the terminal field, so as to fully utilize the gap portion between the components, reduce the inherent space requirements of the conventional lithium ion battery, and have flexible design, provide conditions for the thin and light design of the terminal, and replace the traditional with the solid battery. Lithium-ion batteries overcome the safety problems of electrolytes such as flammability and explosion, and improve safety.

Claims

A method of manufacturing a solid state battery, comprising:

Determining a gap portion between components inside the terminal as a filling area of the solid battery;

The solid state battery is designed and filled according to the filling area.
The method of claim 1 wherein said fill region comprises at least one of the following:

a gap between the shield inside the terminal and the structural member;

a gap between the structural member inside the terminal and the circuit board;

a gap between the shields inside the terminal;

The gap between the shield inside the terminal and the device.
The method of claim 1 wherein said designing and filling said solid state battery in accordance with said fill region comprises:

Dividing the filling area into different types of spatial areas according to a structure type of the filling area, wherein the space area comprises a thin layer space, a block space, and a cylindrical space;

Solid-state batteries of different structural types are designed and filled according to the shape and size of the space region.
The method of claim 3, wherein the designing and filling the solid state batteries of different structural types according to the shape and size of the spatial region comprises:

Designing and filling a solid thin film battery according to the shape and size of the thin layer space;

Designing and filling a block-shaped laminated solid battery according to the shape and size of the block space;

Designing and filling a ring-shaped laminated solid state battery according to the shape and size of the cylindrical space;

Wherein the bulk laminated solid battery and the annular laminated solid battery comprise a plurality of layers of a cathode material, a cathode material, and a dielectric material.
The method of claim 4 wherein said designing and filling the solid state thin film battery according to the shape and size of said thin layer space comprises:

Depositing a positive electrode material, a negative electrode material, and a dielectric material of the battery in the thin layer space;

The positive and negative electrodes of the battery are taken out from the positive electrode material and the negative electrode material.
The method of claim 1 further comprising:

Combining the solid state battery with components inside the terminal to be assembled into one integral component; or

The electrode material or dielectric material of the solid state battery is formed as part of the assembly inside the terminal.
The method of claim 1 further comprising:

The solid state battery of any one of the filling regions is connected to the solid battery according to the positive and negative electrodes of the battery to the solid battery of the other region, or the cells of each region are connected to be completely independent batteries.
The method of claim 1 further comprising:

The management of the solid state battery includes at least one of the following: high temperature protection, low temperature protection, power supply control, over voltage protection, over current protection, overcharge protection, and over discharge protection.
A solid state battery, which is a battery fabricated according to the method of any one of claims 1 to 8.
A terminal comprising: the solid state battery of claim 9, wherein the solid state battery is used to supply power to each terminal module of the terminal.