CN111398835A

CN111398835A - Information processing method and system

Info

Publication number: CN111398835A
Application number: CN202010182468.2A
Authority: CN
Inventors: 胡宇
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-07-10
Anticipated expiration: 2040-03-16
Also published as: CN111398835B

Abstract

The embodiment of the application discloses an information processing method, which comprises the following steps: when the battery is detected to be in a first state, respectively acquiring a first impedance and a second impedance; wherein the first state is used for representing a standing state of the battery; the first impedance is used for representing the alternating current impedance of the battery; the second impedance is used for representing the impedance detected when the electric signal interferes with the battery at a preset frequency; obtaining a third impedance based on the first impedance and the second impedance; the third impedance is used for representing the superimposed impedance of other impedances of the battery except ohmic impedance when the battery is in the first state; obtaining a second state based on the third impedance; wherein the second state is indicative of an inflated state of the battery. The embodiment of the application also discloses an information processing system.

Description

Information processing method and system

Technical Field

The present invention relates to the field of information technologies, and in particular, to an information processing method and system.

Background

With the increase of the charging and discharging times, the positive and negative electrode structures of the lithium ion battery, especially the layered structure gaps of the negative electrode, can generate the expansion phenomenon. In the related art, the expansion state inside the lithium ion battery is generally detected by a pressure sensor or a piezoelectric ceramic circuit. However, the pressure sensor provided to detect the swelling state inside the lithium ion battery occupies a certain space between the battery cells inside the battery, and requires a specific circuit, which results in a complicated circuit and an increased volume of the battery; on the other hand, the scheme of adopting the piezoelectric ceramic loop to detect the expansion state of the lithium ion battery needs to fixedly arrange an expansion cavity with compressible volume between the battery cells, and the expansion cavity can also increase the volume of the battery.

Disclosure of Invention

The embodiment of the application provides an information processing method, and the information processing method can obtain the swelling state of a battery by detecting the impedance of the battery.

The information processing method provided by the embodiment of the application is realized as follows:

an information processing method, the method comprising:

when the battery is detected to be in a first state, respectively acquiring a first impedance and a second impedance; wherein the first state is used for representing a standing state of the battery; the first impedance is used for representing the alternating current impedance of the battery; the second impedance is used for representing the impedance detected when the electric signal interferes with the battery at a preset frequency;

obtaining a third impedance based on the first impedance and the second impedance; the third impedance is used for representing the superimposed impedance of other impedances of the battery except ohmic impedance when the battery is in the first state;

obtaining a second state based on the third impedance; wherein the second state is indicative of an inflated state of the battery.

Optionally, obtaining a second state based on the third impedance includes:

acquiring a state matching model; the state matching model is used for representing a corresponding relation model based on the third impedance and the second state of each battery in the battery sample;

and obtaining the second state based on the third impedance and the state matching model.

Optionally, obtaining the second state based on the third impedance and the state matching model includes:

acquiring a first numerical value; wherein the first value is used for representing the work cycle period value of the battery;

and obtaining the second state based on the first numerical value, the third impedance and the state matching model.

Optionally, obtaining the second state based on the first value, the third impedance, and the state matching model includes:

and if the first value is larger than or equal to a first threshold value, obtaining the second state based on the third impedance and the state matching model.

Optionally, the method further includes:

acquiring a second numerical value; the second numerical value is used for representing the number of times that the second state meets the specific state within a preset time range;

and outputting alarm information if the second value is greater than or equal to a second threshold value within a preset time range.

Optionally, the obtaining the state matching model includes:

sequentially acquiring a first corresponding relation and a second corresponding relation based on the battery sample; wherein the first corresponding relationship is used for representing the corresponding relationship between the working state cycle period and the expansion state of each battery in the battery sample; the second corresponding relation is used for representing the corresponding relation between the working state cycle period of each battery in the battery sample and the third impedance of each battery;

and acquiring the state matching model based on the first corresponding relation and the second corresponding relation.

Optionally, the obtaining a first corresponding relationship and a second corresponding relationship based on the battery sample includes:

when the working state of each battery is switched from a third state to a first state, sequentially acquiring the first corresponding relation and the second corresponding relation based on the battery sample; wherein the third state is used for representing the charging state or the discharging state of each battery.

Optionally, the sequentially obtaining the first corresponding relationship and the second corresponding relationship based on the battery sample includes:

and sequentially acquiring the first corresponding relation and the second corresponding relation in a preset working state cycle period based on the battery sample.

Optionally, obtaining a third impedance based on the first impedance and the second impedance includes:

and obtaining the third impedance by subtracting the first impedance from the second impedance.

An information handling system, the system comprising: a processor, a memory, and a communication bus; the communication bus is used for realizing communication connection between the processor and the memory;

the processor is used for executing the program of the information processing method in the memory to realize the following steps:

A computer readable storage medium having one or more programs stored thereon, the one or more programs being executable by one or more processors to implement the steps of any of the information processing methods described above.

According to the information processing method provided by the embodiment of the application, when the battery is detected to be in the first state, the first impedance representing the alternating current impedance of the battery and the second impedance detected when the battery is interfered by the identifier at the preset frequency are respectively obtained, then the third impedance is obtained based on the first impedance and the second impedance, and then the current expansion state of the battery is obtained based on the third impedance. Therefore, the information processing method provided by the embodiment of the application can obtain the expansion state of the battery or the battery core of the battery through the impedance detection method under the condition that an expansion absorption cavity or a pressure sensor is not needed, so that the expansion state of the battery can be conveniently and quickly detected under the condition that the volume of the battery is not increased.

Drawings

Fig. 1 is a diagram illustrating the structure of a soft-packed polymer cell inside a lithium ion battery in a relative art when the cell is not expanded;

fig. 2 is a structural view of a soft-packed polymer cell inside a lithium ion battery as it expands in a relative art;

fig. 3 is a visual diagram of an expansion bulge after gas generation and side reaction inside a soft-packed polymer cell inside a lithium ion battery in a relative technique;

fig. 4 is a flowchart of a first information processing method according to an embodiment of the present application;

fig. 5 is a flowchart of a second information processing method according to an embodiment of the present application;

fig. 6a is a schematic diagram of a first corresponding relationship among a first group of battery cells provided in an embodiment of the present application;

fig. 6b is a schematic diagram of a second corresponding relationship between the first group of battery cells according to the embodiment of the present application;

fig. 7a is a schematic diagram of a first corresponding relationship in a second group of battery cells according to an embodiment of the present application;

fig. 7b is a schematic diagram of a second corresponding relationship between a second group of battery cells according to an embodiment of the present application;

fig. 8a is a schematic diagram of a first corresponding relationship in a third group of battery cells according to an embodiment of the present application;

fig. 8b is a schematic diagram of a second corresponding relationship of a third group of battery cells according to the embodiment of the present application;

fig. 9 is a flowchart of a specific implementation of an information processing method according to an embodiment of the present application;

fig. 10 is a block diagram of an information processing system according to an embodiment of the present application.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The lithium ion battery is a kind of battery using non-aqueous electrolyte solution, in which lithium ions are reciprocated between positive and negative electrodes to store and release energy. In general, the positive electrode of a lithium ion battery is made of a layered lithium-intercalated metal oxide, a spinel-structured lithium manganate or an olivine-structured lithium iron phosphate, and the negative electrode of a lithium ion battery is generally made of a layered graphite.

In fact, during the use of lithium ions, a swelling phenomenon occurs. The reason is as follows: when the lithium ion battery is continuously charged and discharged, lithium ions alternately reciprocate between the positive electrode and the negative electrode. The positive electrode is a source of lithium ions, and gaps among layers or gaps for accommodating the lithium ions are the force action of metal bonds, so that the gaps are tight; the negative electrode is a traveling destination of lithium ions, and van der waals force acts between layers of graphite, and the force is weak, so that the layered gap is easily opened. During charging, lithium ions are extracted from the positive electrode, the positive electrode layered structure or gap changes little, and lithium ions enter the graphite layered structure of the negative electrode, and the volume of lithium ions themselves tends to prop the negative electrode graphite layered structure apart due to the weaker layer-to-layer force, so that the negative electrode, which represents a charged state cell, tends to become thicker. Generally, when the cell thickness is larger than the cell thickness in a full discharge (0% SOC) in a full 100% State of Charge (SOC), the overall pole piece structure of the cell is 2-3% larger. Secondly, in the state of using or storing the lithium ion battery, the electrode, mainly the negative electrode, reacts with the electrolyte to generate an inert film, namely an electrode electrolyte interface film (solid electrolyte interface), which is referred to as an SEI film for short. In the whole life cycle of the lithium ion battery, the side reaction can be continuously carried out, and the SEI film is continuously damaged and repaired and grows to show that the negative electrode is continuously thickened; the cell electrode is essentially a layer of coating material, and the electrode material is composed of granular active materials, granular conductive agents, stabilizing agents and the like, is adhered to each other through a binder and is adhered to a current collector. With the increase of the charge-discharge period of the lithium ion battery, the adhesive in the material of the link electrode is also aged, which is expressed as the damage of the electrode material and the falling of the electrode material from a current collector, and the distance between each particle is gradually increased, so that the distance between the electrode material and the current collector of the battery cell is increased, and the thickness of the electrode is increased; in addition, various byproducts and gases are also generated during the generation and repair of the SEI film.

The soft-packaged polymer battery cell is one of lithium ion batteries, and the outermost layer of the battery cell is packaged into a flexible aluminum foil. Along with the increase of the number of charge and discharge cycles of the lithium ion battery, the phenomenon of the expansion of the cell electrode material of the lithium ion battery, such as the thickening of the electrode or the generation of gas, is represented as the increase of the cell thickness of a soft-package polymer.

Fig. 1 is a block diagram of a soft-packed polymer cell of a lithium ion battery when it is unexpanded. As can be seen from fig. 1, the winding structure inside the soft-packed polymer cell is good, and no significant gas voids occur inside the cell and at the outer package.

However, the performance of the soft-packaged polymer battery cell as the output end of the lithium ion battery is influenced by four dimensions, namely, the battery cell material, the battery cell design scheme, the battery cell processing technology and the battery cell use condition. The abnormal change of the thickness of the battery cell is easily caused by the abnormal occurrence of any dimension.

If the design scheme of the soft-package polymer battery cell of the lithium ion battery is abnormal, such as insufficient anode surplus, lithium metal can be separated out from the battery anode when the lithium ion battery is charged; for example, the poor electrolyte formula can cause side reaction at the anode of the battery cell, and the side reaction is mainly characterized in that black spots or lithium metal precipitation and even gas expansion are easy to occur at the anode.

If the material of the soft-packaged polymer battery core is abnormal, such as the coating cover of the cathode material is incomplete, or the doping is incomplete, or the particles are too small, or the graphitization of the cathode material is abnormal, or the coating of the diaphragm is abnormal or pollution exists, or the water content of the electrolyte exceeds the specification, the battery cell is easy to expand abnormally.

If problems occur in the production process of the soft-packaged polymer battery cell of the lithium ion battery, such as the coating surface density is out of specification, the compaction density is too high, the winding tension is too high, or the water content of the pole piece is out of specification, side reactions or battery cell deformation can also be caused.

If the soft-packed polymer cell of the lithium ion battery is used unreasonably, such as being overcharged or overdischarged, or being used at an excessively high temperature, gas or side reaction may occur inside the cell, which may cause an increase in the thickness of the cell and a volume expansion, as shown in fig. 2 and 3, in particular. In fig. 2, due to gas or side reaction generated inside the battery cell, the winding structure inside the battery cell is pressed, and a deformation phenomenon occurs; in fig. 3, a significant swelling phenomenon of the soft polymer outside the battery occurs due to gas generated inside the battery cell and side reactions.

When designing a soft-package polymer battery cell of a lithium ion battery, the material, process and use occasion of the soft-package polymer battery cell are usually combined, and a threshold value of an expansion degree is set for the lithium ion battery or the soft-package polymer battery cell, for example, the expansion ratio of each 1000 charge-discharge cycles is 10%. However, if the swelling degree of the lithium ion battery or the soft polymer may exceed 10% or even 20% during the actual use of the lithium ion battery, in this case, the swollen lithium ion battery or the soft polymer battery cell may pose a threat to the safety of the terminal using the lithium ion battery, such as a notebook, a mobile phone or even an electric automobile, and in some extreme cases, the terminal may be cracked. Therefore, detecting or predicting the abnormal expansion of the lithium ion battery or the battery core has very important significance for the safe use of the lithium ion battery.

In the relative technology, in order to detect the expansion state of the lithium ion battery or the soft-package polymer battery cell in real time, a scheme of a pressure sensor or a piezoelectric ceramic circuit is usually adopted, specifically, the pressure sensor or the piezoelectric ceramic circuit is arranged inside each soft-package polymer inside the lithium ion battery, and the pressure inside each soft-package polymer battery cell or between the battery cells is detected through the pressure sensor or the piezoelectric ceramic circuit. However, in the above solution, an additional pressure sensor needs to be arranged in the soft-package polymer of the lithium ion battery, on one hand, the additionally arranged pressure sensor may increase the thickness of the battery cell of the lithium ion battery, thereby increasing the volume of the lithium ion battery, and since a specific loop control cooperation is required to detect the pressure inside the battery cell or between the battery cells, the loops may also occupy the space of a Printed Circuit Board (PCB) of the battery cell; on the other hand, adding an additional sensor also results in an increase in the cost of the lithium ion battery.

In the relative technology, a manner of fixedly arranging an expansion absorption cavity inside a lithium ion battery is generally adopted to detect the pressure between the electric cores inside the lithium ion battery, specifically, a compressible expansion absorption cavity is arranged between two adjacent electric cores, and the pressure of the electric cores is calculated by detecting the pressure or volume change of the expansion absorption cavity, so as to obtain the collision state of the electric cores. The expansion absorbing cavity is also a pressure sensor, and the expansion absorbing cavity fixed to the expansion absorbing cavity also needs to occupy the space between the electric cores, which also results in the volume and weight of the lithium ion battery being increased. Therefore, the scheme of arranging the expansion absorption cavity inside the battery cannot meet the requirements of energy density and light and thin design of the current lithium ion battery.

Based on the defects of the two solutions for detecting the expansion state of the lithium ion battery, the embodiment of the application provides an information processing method, and the information processing method can conveniently and quickly detect the expansion state of the interior of the lithium ion battery under the condition that no additional sensor or expansion absorption cavity is added.

As shown in fig. 4, the information processing method provided in the embodiment of the present application may be implemented by a processor of an information processing system, and specifically, the information processing method provided in the embodiment of the present application may include the following steps:

step 101, when the battery is detected to be in the first state, respectively acquiring a first impedance and a second impedance.

The first state is used for representing the standing state of the battery; a first impedance representing an alternating current impedance of the battery; and a second impedance representing an impedance detected when the battery is disturbed at a preset frequency.

In step 101, the battery may be a lithium ion battery.

In one embodiment, the cells in the battery are soft-packed polymer cells.

In one embodiment, at least one soft-packed polymer cell is included in the battery.

In step 101, the first state may be a static state of the lithium ion battery.

In one embodiment, the first state may be a state after the end of the state of charge of the lithium ion battery.

In one embodiment, the first state may be a state after the end of the discharge state of the lithium ion battery.

In one embodiment, the first state may be a state after the end of the charging state of the lithium ion battery for a certain period of time, for example, a state ten minutes after the end of the charging state.

In one embodiment, the first state may be a state after the discharge state of the lithium ion battery is finished for a certain period of time, for example, a state ten minutes after the discharge state is finished.

In step 101, the first impedance may be used to represent an ac impedance of the lithium ion battery tested in the first state.

In one embodiment, the first impedance may be used to represent an impedance detected when an ac electrical signal at a higher frequency interferes with the battery in the first state.

In one embodiment, the first impedance may be used to represent an impedance detected when the battery is disturbed by a large number of connections per unit time and an extremely short connection time using a dc electrical signal in the first state.

In one embodiment, the first impedance may be an ohmic impedance.

In step 101, the second impedance may be used to represent an impedance detected when the battery is disturbed by the electrical signal with the preset frequency in the first state.

In one embodiment, the second impedance may be used to represent an impedance detected when, in the first state, an electrical signal at a lower frequency interferes with the battery.

In one embodiment, the second impedance may be used to represent a superimposed impedance of various impedances detected when the battery is disturbed by the electrical signal at a lower frequency in the first state.

In one embodiment, the second impedance may be used to represent a superimposed impedance of various impedances detected when the battery is disturbed with the dc signal in the first state with an extremely short on-time per unit time.

And 102, obtaining a third impedance based on the first impedance and the second impedance.

The third impedance is a superimposed impedance of the other impedances of the battery except the ohmic impedance when the battery is in the first state.

In step 102, the third impedance may be an impedance that characterizes a swelling state of the battery.

103, obtaining a second state based on the third impedance; and the second state is used for representing the expansion state of the battery.

In step 103, the second state may be used to indicate the swelling state of each cell in the battery.

In one embodiment, the second state may be used to indicate the swelling state of any cell in the battery.

In one embodiment, the second state may be used to indicate the swelling state of the polymer pouch cell in the battery.

In one embodiment, the second state may be used to indicate the swelling state of a particular soft-packed polymer cell in the battery.

In one embodiment, the second state may be an expansion state of the battery obtained based on an expansion state of each cell in the battery.

In step 103, there is a correlation between the third impedance and the second state.

In one embodiment, the correlation between the third impedance and the second state may be obtained based on battery sample data.

In one embodiment, the correlation between the third impedance and the second state may be obtained based on battery sample data obtained after the state of charge is switched to the first state.

In one embodiment, the correlation between the third impedance and the second state may be obtained based on battery sample data obtained after switching from the discharge state to the first state.

In one embodiment, the correlation between the third impedance and the second state may be obtained based on sample data collected from the time when the number of times of charging and discharging of the battery is 0 and the time when the number of times of switching the battery from the charging state or the discharging state to the first state reaches the end of the first number; the first number is used to represent an integer greater than 0, and optionally, the first number may be an integer greater than 300.

In one embodiment, the corresponding relationship between the third impedance and the second state may be obtained based on sample data collected from the time when the number of times of charging and discharging of the battery starts from the second number and the time when the number of times of switching the battery from the charging state or the discharging state to the first state reaches the end of the third number; wherein the second number is used to represent an integer greater than 0; a third number representing an integer greater than the second number.

According to the information processing method provided by the embodiment of the application, when the battery is detected to be in the first state, the first impedance representing the alternating current impedance of the battery and the second impedance detected when the battery is interfered by the identifier at the preset frequency are respectively obtained, then the third impedance is obtained based on the first impedance and the second impedance, and then the current expansion state of the battery is obtained based on the third impedance. Therefore, the information processing method provided by the embodiment of the application can obtain the expansion state of the battery or the battery core of the battery through the impedance detection method under the condition that an expansion absorption cavity or a pressure sensor is not required to be arranged, so that the expansion state of the battery can be conveniently and rapidly detected under the condition that the volume of the battery is not increased.

Based on the foregoing embodiments, the present application provides an information processing method, as shown in fig. 5, which may include the following steps;

step 201, when the battery is detected to be in the first state, respectively acquiring a first impedance and a second impedance.

Step 202, obtaining a third impedance based on the first impedance and the second impedance.

Illustratively, step 202 may be implemented as follows:

and obtaining a third impedance by subtracting the first impedance from the second impedance.

And step 203, acquiring a state matching model.

And the state matching model is used for representing a corresponding relation model based on the third impedance and the second state of each battery in the battery sample.

In step 203, the battery sample may be used to represent a set of batteries with the same composition material, manufacturing process, design scheme and structure in the battery set.

In one embodiment, a battery sample may be used to represent a collection of lithium ion batteries of the same composition material, fabrication process, design and structure.

In one embodiment, a battery sample may be used to represent a collection of lithium ion batteries of the same composition, fabrication process, and structure.

In step 203, the state matching model may be a model determined based on the battery samples before the first impedance and the second impedance are obtained.

In one embodiment, the state matching model may be obtained based on sample data after each battery in the battery sample is switched to the first state.

In one embodiment, the state matching model may be obtained based on a third impedance and a corresponding swelling state detected after each cell in the cell sample is switched to the first state.

In one embodiment, the state matching model may be obtained based on the first impedance, the second impedance and the degree of expansion measured when the first impedance and the second impedance are detected after each battery in the battery sample is switched to the first state, wherein the degree of expansion is expressed in percentage and is used for representing the expansion state of the battery.

In one embodiment, the state matching model may be obtained based on each first impedance, each second impedance, and each degree of expansion detected when each cell in the cell sample switches from the kth time to the first state to the mth time to the second state; wherein, the degree of expansion may be used to represent a percentage of an expansion state corresponding to the detection of the first impedance and the second impedance, and K is an integer greater than 0, and M is an integer greater than K, and for example, the result of M-K is greater than a first value, and specifically, in order to ensure the number of sample data, the first value may be a value greater than or equal to 100.

Illustratively, step 203 may be implemented by step A1-step A2:

and A1, sequentially acquiring a first corresponding relation and a second corresponding relation based on the battery sample.

The first corresponding relation is used for representing the corresponding relation between the working state cycle period and the expansion state of each battery in the battery sample; and the second corresponding relation is used for representing the corresponding relation between the working state cycle period of each battery in the battery sample and the third impedance of each battery.

In step a1, an operating state cycle period may be used to indicate the number of times the operating state of the battery switches to the first state.

In one embodiment, the duty cycle may be used to indicate the number of times any operation of the battery is switched from the charging state to the rest state or from the discharging state to the rest state.

In one embodiment, the duty cycle period may be used to indicate the number of times the battery switches from the first state to the pth state, where P is an integer greater than 1.

In one embodiment, the duty cycle may be used to indicate the number of times the battery switches from the P1 th state to the P2 th state, where P1 is an integer greater than 1 and P2 is an integer greater than P1.

In step a1, the first corresponding relationship may be used to represent a corresponding relationship between the cycle period of the operating state of each cell in each battery in the battery sample and the expansion state thereof.

In one embodiment, the first corresponding relationship may be used to represent a corresponding relationship between the duty cycle and the swelling state of any cell in each battery in the battery sample.

In step a1, the second corresponding relationship may be used to represent a corresponding relationship between the duty cycle of each battery in the battery sample and the third impedance of each cell in each battery.

In an embodiment, the second correspondence may be used to represent a correspondence between an operating state cycle period of each battery in the battery sample and the third impedance of any cell in each battery.

Illustratively, step a1 may also be implemented by step B:

and step B, when the working state of each battery is switched from the third state to the first state, sequentially acquiring the first corresponding relation and the second corresponding relation based on the battery samples.

And the third state is used for representing the charging state or the discharging state of each battery.

Illustratively, step B may be implemented as follows:

For example, fig. 6 a-8b illustrate the principle of obtaining the first and second correspondences.

It should be noted that each of the data acquisition in fig. 6 a-8b is performed after each battery in the battery sample is switched from the charging state or the discharging state to the first state.

Specifically, fig. 6a shows a first corresponding relationship of a first group of cells of the battery, which may be, for example, a correlation between a third impedance of the first group of soft-packed polymer cells and a second state. The first group of cells may be a first type of cell, and the first group of cells includes three cells: cell 1, cell 2, and cell 3, where cell 1 is a cell produced based on an average design and production process, and cell 2 and cell 3 are cells produced in a standard design and production process from the same material as cell 1, and thus, in fig. 6a-6b, cell 1 is a working cell, and cell 2 and cell 3 are reference cells of cell 1.

In fig. 6a, the abscissa represents the number of times the battery is switched to the first state, which may be used to represent the number of times the battery is switched from the charging state or the discharging state to the rest state, the ordinate represents the third impedance in ohm, which represents cell 1, ○ represents cell 2, △ represents cell 3, and the dot diagram in fig. 6a represents the trend of the third impedance obtained by the experiment with the number of times the battery is switched to the rest state.

In fig. 6a, when the abscissa of the lattice of the three different patterns is less than or equal to 600, the third impedances of the cell 1, the cell 2, and the cell 3 are substantially consistent, and after the abscissa is greater than 600, the third impedance of the cell 1 gradually changes to a greater extent than the third impedances of the cell 2 and the cell 3, and when the abscissa is 800, the third impedance of the cell 1 increases by approximately 20% compared with the third impedances of the cell 2 and the cell 3.

Fig. 6b is a diagram of the correspondence relationship between the expansion states of the first group of soft-packed polymer cells and the number of times of switching to the first state, which corresponds to fig. 6a, i.e., the second correspondence relationship of the first group of soft-packed polymer cells, in fig. 6b, the abscissa is the number of times of switching each cell of the first group of soft-packed polymer cells to the first state, and the ordinate is the expansion state, i.e., the degree of expansion, of each cell of the first group of soft-packed polymer cells, which is expressed by a first percentage, wherein the first percentage is obtained by subtracting the initial state from the current expansion state of each cell, and expressing the cell 1, ○ expresses the cell 2, and △ expresses the cell 3, and the dotted traces of three different graphs are used for expressing the correspondence relationship between the expansion state of each cell of the first group of soft-packed polymer cells and the number of times of switching to the first state.

In fig. 6b, it can be seen that when the number of times that each cell in the first group of soft-packaged polymer cells is switched to the first state is less than or equal to 600, the variation tracks between the cell 1, the cell 2, and the cell 3 are substantially consistent, and when the number of times that each cell is switched to the first state is greater than 600, the swelling state of the cell 1 is more obvious than that of the other two cells. When the number of times of switching each cell to the first state reaches 800, the swelling state of the cell 1 increases by approximately 20% compared with the cell 2 and the cell 3.

As can be seen from the dotted variation graphs in fig. 6a and 6b, the third impedance and the second state of each cell in the first group of soft-package polymer cells both increase with the number of times that the battery is switched to the first state, and trends of the third impedance and the second state of each cell increasing with the number of times that the battery is switched to the first state are substantially consistent, that is, there is a correlation between the trends of the third impedance and the second state of each cell with the number of times that the battery is switched to the first state.

Similarly, fig. 7a shows a correlation between the third impedance of the second group of the soft polymer cells and the number of times the battery is switched to the first state, i.e., a first corresponding relationship, and fig. 7b shows a correlation between the swelling state of the second group of the soft polymer cells and the number of times the battery is switched to the first state, i.e., a second corresponding relationship.

Wherein the abscissa and ordinate in fig. 7a coincide with the meanings of the abscissa and ordinate in fig. 6a, the abscissa and ordinate in fig. 7b coincide with the meanings of the abscissa and ordinate in fig. 6b, and it means that the cell 4, ○ means the cell 2, and △ means the cell 3.

In fig. 7a-7b, cell 4 is a working cell similar to that of fig. 6a-6b, and cell 2 and cell 3 are still reference batteries. Fig. 7a is a dotted plot of three different shapes illustrating the trend of the third impedance of the second group of soft-packed polymer cells as it switches to the first state; the dotted variation in fig. 7b shows the trend of the expansion state of the second group of soft-packed polymer cells as they switch to the first state. Wherein, the second group of soft-packaged polymer battery cells includes battery cell 4, battery cell 1 and battery cell 2, and battery cell 1 and battery cell 2 are still the reference battery cells of battery cell 4.

As can be seen from fig. 7a, when the number of times that the second group of soft-packaged polymer cells are switched to the first state is less than or equal to 800, the variation range of the third impedance of each cell in the second group of soft-packaged polymer cells is substantially consistent, and when the number of times that the second group of soft-packaged polymer cells are switched to the first state is greater than 800, the variation of the third impedance of each cell in the second group of soft-packaged polymer cells starts to be different, where when the number of times that the second group of soft-packaged polymer cells are switched to the first state reaches 1000, the third impedance of the cell 4 is increased by about 7% compared with the third impedances of the cell 1 and the cell 2.

Similarly, in fig. 7b, it means that the cell 4, ○ means the cell 2, △ means the cell 3, and in fig. 7b, the swelling state of the second group of soft-packed polymer cells substantially coincides when the number of times they are switched to the first state is equal to or less than 800, but after the number of times they are switched to the first state is greater than 800, for example, close to 1000, the swelling state of the cell 4 increases by about 7% compared with the cell 2 and the cell 3.

Illustratively, the same trend is also shown in FIGS. 8a-8 b.

Fig. 8a shows a correlation between a third impedance of the third group of soft-packed polymer cells and the number of times the battery is switched to the first state, that is, a first corresponding relationship of the third group of soft-packed polymer cells, and fig. 8b shows a correlation between an expansion state of the third group of soft-packed polymer cells and the number of times the battery is switched to the first state, that is, a second corresponding relationship of the third group of soft-packed polymer cells.

Wherein the abscissa and ordinate in fig. 8a coincide with the meanings of the abscissa and ordinate in fig. 6a, the abscissa and ordinate in fig. 8b coincide with the meanings of the abscissa and ordinate in fig. 6b, and it means that the cell 5, ○ means the cell 2, and △ means the cell 3.

In fig. 8a-8b, cell 5 is a similar working cell as in fig. 6a-6b, and cells 1 and 2 still serve as reference cells for cell 5. Fig. 8a is a plot of the three different shapes of the point-like variations illustrating the trend of the third impedance of the third group of soft-packed polymer cells as it switches to the first state; the dotted variation in fig. 8b shows the trend of the expansion state of the third group of soft-packed polymer cells as it switches to the first state.

As can be seen from fig. 8a, when the number of times that the third group of soft-packaged polymer cells are switched to the first state is less than or equal to 180, the variation range of the third impedance of each cell in the third group of soft-packaged polymer cells is substantially consistent, and when the number of times that the third group of soft-packaged polymer cells are switched to the first state is greater than 180, the variation of the third impedance of each cell in the third group of soft-packaged polymer cells starts to be different, where when the number of times that the third group of soft-packaged polymer cells are switched to the first state reaches 200, the third impedance of the cell 5 is increased by about 7% compared with the third impedances of the cell 1 and the cell 2.

Similarly, in fig. 8b, the swelling state of the third group of soft-packed polymer cells substantially remains the same when the number of times of switching to the first state is less than or equal to 180, but after the number of times of switching to the first state of the third group of soft-packed polymer cells is greater than 180, for example, reaches 200, the swelling state of the cell 5 is increased by about 8% compared with the cell 1 and the cell 2.

And A2, acquiring a state matching model based on the first corresponding relation and the second corresponding relation.

As can be seen from the above descriptions of fig. 6a to fig. 8b, for the soft-packaged polymer battery cells produced by the same material, manufacturing process and design, as the number of times of switching to the first state increases, there is a one-to-one correlation between the third impedance of the battery cell and the expansion state thereof, that is, there is a correlation between the first correspondence and the second correspondence.

Therefore, based on the above conclusion, a mathematical model is established, and each parameter in the mathematical model is trained according to the third impedance sample data corresponding to the battery sample and the expansion state sample data corresponding to the third impedance sample data, so as to obtain a mathematical model with adjusted parameters, namely the state matching model.

It should be noted that, in the information processing method provided in the embodiment of the present application, the state matching model includes three dimensional variables of the third impedance and the swelling degree of the battery cell, and the number of times the battery cell is switched to the first state.

The information processing method provided by the embodiment of the application can acquire the swelling state of the current battery core through the third impedance based on the association relationship between the third impedance corresponding to the battery sample and the swelling state thereof, and optionally, can acquire the swelling state of the whole battery.

And step 204, obtaining a second state based on the third impedance and the state matching model.

In step 204, the state matching model may be a mathematical model determined based on the method described above.

Illustratively, step 204 may be implemented by step C1-step C2:

and C1, acquiring a first numerical value.

Wherein the first value is used for representing the duty cycle value of the battery.

In step C1, the duty cycle value of the battery may be used to indicate the value of the battery switched to the first state.

In one embodiment, the duty cycle value of the battery may be used to indicate a number of times the battery switches from a charging state or a discharging state to the first state.

In one embodiment, the duty cycle of the battery may be obtained by recording the number of charge and discharge operations per one time of the battery and performing a self-increment operation.

And step C2, obtaining a second state based on the first value, the third impedance and the state matching model.

In step C2, the second state may be obtained by inputting the first value and the third impedance into a state matching model for matching.

In one embodiment, the first value and the third impedance are matched simultaneously according to a state matching model, i.e. the second state is only available when the first value and the third impedance are matched simultaneously with the state matching model.

In one embodiment, the first value is matched according to a state matching model to obtain a first matching result, and the second state is determined according to a matching relation between the first matching result and the third impedance.

Illustratively, step C2 may be implemented by step D:

and D, if the first value is larger than or equal to the first threshold value, obtaining a second state based on the third impedance and the state matching model.

Accordingly, if the first value is smaller than the first threshold, the operation of obtaining the second state may not be performed.

In step D, the first threshold may be a preset value, and may be a threshold indicating the number of times the battery is switched to the first state.

In one embodiment, the first threshold may be obtained based on a third impedance sample data of the battery sample along with a trend of the battery switching to the first state.

In an embodiment, the first threshold may be obtained from a trend of a change of third impedance sample data corresponding to a sample of the battery with the battery switched to the first state, and a change amplitude of the third impedance obtained with the battery switched to the first state is smaller than a preset amplitude.

For example, as shown in fig. 6a to fig. 8b, during the actual use of the cell, the swelling state of the cell does not change greatly within a certain number of times of switching the cell to the first state, or the swelling state of the cell does not have a significant effect on the operating state of the cell. Therefore, the swelling state of the cell may not be detected for the first several times when the cell is switched to the first state. Therefore, the first threshold value can be obtained according to the value of switching the battery to the first state, wherein the expansion state of the battery cell does not have obvious influence on the working state of the battery cell. The first threshold may be smaller than or equal to a value of the battery switched to the first state. For example, for fig. 6a and 6b, the first threshold may be a value less than 600; for fig. 7a and 7b, the first threshold may be a value less than 600; for fig. 8a and 8b, the first threshold may be a value less than 150.

It should be noted that, if the first value is greater than or equal to the first threshold in step D, the operation of obtaining the second state based on the third impedance and the state matching model is performed based on that the third impedance does not change abnormally when the first value is less than the first threshold.

If the difference between the detected value of the third impedance and the corresponding third impedance in the state matching model is greater than the second threshold when the first value is smaller than the first threshold, it indicates that the third impedance has an abnormal change, at this time, the third impedance may be tried to be measured again and compared with the corresponding third impedance in the state matching model to determine whether the third impedance has an abnormal change indeed, and if the third impedance has a field change indeed, it indicates that at least one electric core in the battery has an abnormality, which may have a large influence on the working state of the battery and needs to be handled as soon as possible.

The information processing method provided by the embodiment of the application can further execute the steps E1-E2:

and E1, acquiring a second numerical value.

And the second numerical value is used for representing the number of times that the second state meets the specific state within the preset time range.

In step E1, the specific state may be a state in which the expansion degree corresponding to the expansion state of the battery is greater than a preset expansion degree, where the preset expansion degree may be an expansion degree set according to a manufacturing material, a manufacturing process, the number of battery cells, and a link manner between the battery cells, for example, 10%.

In one embodiment, the specific state may be an average expansion state of the battery with the same manufacturing process, the same manufacturing material and the same design, and the same number of cells and connection modes, wherein the average expansion state is used to indicate an expansion state which does not have a significant influence on the operating state of the battery.

In step E1, the predetermined time range may be used to indicate a predetermined number of times, for example, 500 times, that the battery is switched to the first state.

In one embodiment, the preset time range may be used to indicate the number of times the battery switches from the nth 1 th time to the first state to the nth 2 th time to the first state, where N1 is an integer greater than 0 and N2 is an integer greater than N1.

In step E1, the second value may be used to indicate the number of times the obtained second state has a significant effect on the operating state of the battery within the preset time range.

In one embodiment, the second value may be used to indicate the number of times that the second state of at least one cell constituting the battery has a significant effect on the operating state of the battery within a preset time range.

In one embodiment, the second value may be used to indicate the number of times that the second states of all the cells constituting the battery have a significant influence on the operating state of the battery within a preset time range.

And E2, outputting alarm information if the second value is larger than or equal to the second threshold value within the preset time range.

In step E2, the second threshold may be a predetermined value.

In one embodiment, the second threshold may be a value that is adjustable according to the usage status of the battery.

In one embodiment, the second threshold may be a small value, such as 2.

In step E2, the warning message may be a text or audio message directly output from the terminal using the battery, for example, a message reminding the user of the abnormal state of the current battery and prompting the user to replace the battery.

In an implementation manner, the alarm information may be text information directly output by a terminal using a battery, and the text information carries a message list that can be selected by a user, and when the user selects one or more of the message lists, an operation corresponding to the selected message may be executed.

In one embodiment, the alarm information may be information sent to a terminal manufacturer or a service provider, such as a battery status sent to a manufacturer of a notebook or a mobile phone or an after-market service provider.

In one embodiment, the warning information may be information that is first obtained from a device identifier of the terminal and generated based on the device identifier, and then the warning information may be sent to a manufacturer of the terminal or an after-sales service provider through a communication device of the terminal, so that the manufacturer of the terminal or the after-sales service provider may obtain current state information of the terminal battery in time, and send prompt information to a user of the terminal in time through a mail or the like to prompt the user to replace the battery in time, thereby avoiding abnormal working state of the terminal caused by deterioration of the battery expansion state.

In one embodiment, the warning information may be interference information performed by the terminal on the current operation of the user, for example, a window popped up during the user operation has a higher priority than the user operation window, and the window is a window in which the direct mail user can continue the original operation after performing the operation on the window.

In one embodiment, the alarm information may be information that the terminal temporarily stops supplying power to a device including the display device, for example, a black screen of the display device.

Illustratively, fig. 9 shows a flowchart of a specific implementation of the information processing method provided in the embodiment of the present application.

In fig. 9, for example, a protocol for selecting SMbus in the notebook battery may be used to record data and edit algorithm commands by defining different address bits.

It should be noted that for other power vehicles or energy storage devices, the selected protocols are different, but commands can be edited according to similar logic algorithms to achieve the same purpose.

In fig. 9, an information processing method provided in an embodiment of the present application will be described by taking a battery including four battery cells as an example.

In fig. 9, in order to efficiently and quickly acquire the third impedance, first, the acquisition modes of the first impedance and the second impedance are set.

Three groups of addresses 0X60-0X6F, 0X70-0X7F and 0X80-0X8F are taken as examples in FIG. 9.

In FIG. 9, each address is 16 bits, where 0X60-0X6F is used to obtain a first impedance when the battery is switched to a first state.

Taking 0X60 as an example, bits 0-1 of the address are used to transmit a first timestamp, where the first timestamp is used to indicate a first time when the first impedance was obtained; the 2 nd to 3 rd bits are used for transmitting a first voltage of a first battery cell of the battery; 4 th to 5 th bits for transmitting a first voltage of a second cell of the battery; the 6 th to 7 th positions are used for transmitting the first voltage of a third battery cell of the battery; the 8 th bit to the 9 th bit are used for transmitting the first voltage of the fourth battery cell; 10 th-11 th bits for transmitting a first instantaneous current value at a previous time when the battery enters the first state; the 12 th bit to the 13 th bit are used for transmitting the first highest temperature acquired when the first impedance is detected; bits 14-15 for transmitting the first minimum temperature acquired when detecting the first impedance. The data including the first time stamp, the first voltage of each cell, the first instantaneous current value, the first maximum temperature, and the first minimum temperature are collectively referred to as first measurement data.

Wherein the first voltage is indicative of a voltage that perturbs the battery at a higher frequency.

In fig. 9, an address 0X60 for transmitting the above first measurement data of the battery switched to the first state N3 times; wherein N3 is a natural number between 1 and 100; and the corresponding address bit of 0X61 is used for transmitting the above first measurement data of the battery which is switched to the first state for the N3+100 times; 0X62 for transmitting the above first measurement data of the battery switching to the first state N3+200 times; and so on, the corresponding address bit of 0X6H is used for transmitting the above first measurement data when the battery is switched to the first state N3+ (H1-1) × 100 times. Wherein H1 is an integer greater than or equal to 2 and less than or equal to 6. Thus, the first measurement data from the first switch of the battery to the first state to the 600 th switch of the battery to the first state can be acquired through 0X60-0X 66.

In fig. 9, the address bits corresponding to the address 0X67 are used for transmitting the first measurement data of the battery switched to the first state from the N4 th time to the 650 th time, where N4 is a numerical value greater than or equal to 600 and less than 650, and the address bits corresponding to the address 0X6H2 are used for transmitting the first measurement data of the battery switched to the first state from the N4+ (H2-1) × 50 times, where H2 is an integer greater than 1 and less than or equal to 9. Thus, at the address 0X67-OX6F, the first measurement data of the battery switching from the 600 th to the first state to the 1100 th to the first state can be transmitted.

It should be noted that, when the number of times of switching the battery to the first state exceeds 600, the step size for transmitting the first state is reduced to 50, so as to reduce the data coverage operation that may occur during the transmission of the first measurement data. The acquisition of the first maximum temperature and the first minimum temperature is used to correct the voltage values in the first measurement data, and when the temperature is too high or too low, there is a possibility that the various voltage values in the acquired first measurement data may deviate.

Similarly, addresses 0X70-0X7F are used to transmit second measurement data of the battery detected when the battery switches from the first state to the 1100 th state. The second measurement data comprise a second timestamp transmitted by the 0-1 address bit, a second voltage of the first battery cell transmitted by the 2-3 address bit, a second voltage of the second battery cell transmitted by the 4-5 bit, a second voltage of the 6-7 address bit used for transmitting the third battery cell, a second voltage of the 8-9 bit used for transmitting the fourth battery cell, and a second instantaneous current value of the 10-11 bit at the previous moment when the battery enters the first state; the 12 th bit to the 13 th bit are used for transmitting the second highest temperature acquired when the first impedance is detected; bits 14-15 for transmitting the second minimum temperature acquired when detecting the first impedance. The data including the second time stamp, the second voltage of each cell, the second instantaneous current value, the second maximum temperature, and the second minimum temperature are collectively referred to as second measurement data.

Wherein the second voltage is indicative of a voltage that perturbs the battery at a lower frequency.

Specifically, the first measurement data transmitted by the addresses 0X60-0X6F and the second measurement data transmitted by the addresses 0X70-0X7F may obtain the first impedance and the second impedance, and obtain the third impedance by subtracting the second impedance from the first impedance, and the obtained third impedance, which is the same as the first impedance and the second impedance, corresponds to the number of times the battery switches to the first state, so that the third measurement data transmitted by the addresses 0X80-0X8F are as follows: and the third impedance of the first battery cell transmitted by the 0-1 address bit, the third impedance of the second battery cell transmitted by the 2-3 address bit, the third impedance of the third battery cell transmitted by the 4-5 address bit, and the 6-7 address bit are used for transmitting the third impedance and the 8-15 address bit of the fourth battery cell, and are reserved. And, the third impedance when the battery switches from the first to 1100 th states to the first state can be obtained by the addresses 0X80-0X 8F.

Accordingly, since each third impedance is associated with the number of times the battery switches to the first state, dividing each third impedance by the corresponding number of times the battery switches to the first state can obtain a third impedance slope, and the fourth measurement data transmitted at addresses 0X90-0X9F is as follows: and the third impedance slope of the first battery cell transmitted by the 0-1 th address bit, the third impedance slope of the second battery cell transmitted by the 2-3 rd address bit, the third impedance slope of the third battery cell transmitted by the 4-5 th address bit, and the 6-7 th address bit are used for transmitting the third impedance slope and the 8-15 th address bit of the fourth battery cell, and are reserved. And, the third impedance slope when the battery switches from the first to 1100 th states to the first state can be obtained by the addresses 0X90-0X 9F.

Accordingly, if the third impedance slope in any cycle of the battery switching to the first state exceeds the preset slope, the 15 th position of the address 0XA0 is set to 1. When detecting that the 15 th bit of the address 0XA0 is 1, outputting alarm information to prompt a user that the current battery is in a high-risk state; if the 15 th bit of the address 0XA0 is not detected to be 1, the detecting actions at the addresses 0X60-0X6F, 0X70-0X8F and 0X90-0X9F are continuously performed.

It should be noted that, for the addresses 0X60-0X6F and 0X70-0X8F, the starting times for acquiring the first measurement data and the second measurement data at the respective addresses may be set, where the starting times are used to indicate the times for switching the battery to the first state, for example, the starting times may be 100 th, and the number of times for acquiring the first measurement data and the second measurement data at the respective addresses may be set to be stepped, for example, the number of times between adjacent addresses may be 40 or 200, so that all the first measurement data and the second measurement data from the beginning of the life cycle to the end of the life cycle of the battery may be acquired through the addresses 0X60-0X6F and 0X70-0X 8F.

Therefore, according to the information processing method provided by the embodiment of the application, when the battery is detected to be in the first state, the first impedance and the second impedance are respectively obtained, the third impedance is obtained based on the first impedance and the second impedance, and then the second state representing the expansion state of the battery is obtained based on the third impedance and the state matching model. Therefore, in the process of acquiring the second state representing the expansion state of the battery, the expansion absorption cavity or the sensor is not needed, the risk of increasing the volume of the battery is reduced, and the expansion state of the battery can be acquired in real time.

Based on the foregoing embodiments, the present application provides an information processing system 3, as shown in fig. 10, where the information processing system 3 includes: a processor 31, a memory 32, and a communication bus, wherein:

the communication bus is used for realizing communication connection between the processor 31 and the memory 32;

the processor 31 is configured to execute a program of an information processing method in the memory 32 to realize the steps of:

when the battery is detected to be in a first state, respectively acquiring a first impedance and a second impedance; the first state is used for representing the standing state of the battery; a first impedance representing an alternating current impedance of the battery; a second impedance representing an impedance detected when the electrical signal interferes with the battery at a preset frequency;

obtaining a third impedance based on the first impedance and the second impedance; the third impedance is used for representing the superimposed impedance of other impedances of the battery except the ohmic impedance when the battery is in the first state;

obtaining a second state based on the third impedance; and the second state is used for representing the expansion state of the battery.

based on the third impedance, a second state is obtained, comprising:

and obtaining a second state based on the third impedance and the state matching model.

obtaining a second state based on the third impedance and the state matching model, comprising:

acquiring a first numerical value; wherein, the first numerical value is used for representing the work cycle period value of the battery;

and obtaining a second state based on the first numerical value, the third impedance and the state matching model.

obtaining a second state based on the first value, the third impedance, and the state matching model, including:

and if the first value is larger than or equal to the first threshold value, obtaining a second state based on the third impedance and the state matching model.

acquiring a second numerical value; a second value representing the number of times the second state satisfies the particular state within the preset time range;

and outputting alarm information if the second value is greater than or equal to the second threshold value within a preset time range.

obtaining a state matching model, comprising:

sequentially acquiring a first corresponding relation and a second corresponding relation based on a battery sample; the first corresponding relation is used for representing the corresponding relation between the working state cycle period and the expansion state of each battery in the battery sample; a second corresponding relation used for representing the corresponding relation between the working state cycle period of each battery in the battery sample and the third impedance of each battery;

and acquiring a state matching model based on the first corresponding relation and the second corresponding relation.

obtaining a first corresponding relation and a second corresponding relation based on the battery sample, including:

when the working state of each battery is switched from the third state to the first state, sequentially obtaining a first corresponding relation and a second corresponding relation based on a battery sample; and the third state is used for representing the charging state or the discharging state of each battery.

based on the battery sample, sequentially obtaining a first corresponding relation and a second corresponding relation, including:

deriving a third impedance based on the first impedance and the second impedance, comprising:

In practical applications, the processor 31 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a programmable logic device (P L D), an on-chip programmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor.

The memory 32 may be a volatile memory (RAM); or a non-volatile memory (non-volatile memory) such as a ROM, a flash memory (flash memory), a Hard disk (Hard disk Drive, HDD) or a Solid-State Drive (SSD); or a combination of the above types of memories and provides instructions and data to the processor 31.

According to the information processing system provided by the embodiment of the application, when the battery is detected to be in the first state, the first impedance representing the alternating current impedance of the battery and the second impedance detected when the identifier interferes with the battery at the preset frequency are respectively obtained, then the third impedance is obtained based on the first impedance and the second impedance, and then the current expansion state of the battery is obtained based on the third impedance. Therefore, the information processing system provided by the embodiment of the application can obtain the expansion state of the battery or the battery core of the battery by an impedance detection method under the condition that an expansion absorption cavity or a pressure sensor is not required to be arranged, so that the expansion state of the battery can be conveniently and rapidly detected under the condition that the volume of the battery is not increased.

Based on the foregoing embodiments, the present application further provides a computer readable storage medium, on which one or more programs are stored, where the one or more programs can be executed by one or more processors to implement the information processing method provided in any of the foregoing embodiments.

The foregoing description of the various embodiments is intended to highlight various differences between the embodiments, and the same or similar parts may be referred to each other, and for brevity, will not be described again herein.

The methods disclosed in the method embodiments provided by the present application can be combined arbitrarily without conflict to obtain new method embodiments.

Features disclosed in various product embodiments provided by the application can be combined arbitrarily to obtain new product embodiments without conflict.

The features disclosed in the various method or apparatus embodiments provided herein may be combined in any combination to arrive at new method or apparatus embodiments without conflict.

The computer-readable storage medium may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); and may be various electronic devices such as mobile phones, computers, tablet devices, personal digital assistants, etc., including one or any combination of the above-mentioned memories.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method described in the embodiments of the present invention.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An information processing method, the method comprising:

2. The method of claim 1, wherein deriving a second state based on the third impedance comprises:

3. The method of claim 2, wherein the deriving the second state based on the third impedance and the state matching model comprises:

4. The method of claim 3, wherein deriving the second state based on the first value, the third impedance, and the state matching model comprises:

5. The method according to any one of claims 1-4, further comprising:

6. The method of claim 2, wherein obtaining the state matching model comprises:

7. The method of claim 6, wherein obtaining the first and second correspondences based on the battery samples comprises:

8. The method according to any one of claims 6-7, wherein said sequentially obtaining the first correspondence and the second correspondence based on the battery sample comprises:

9. The method of claim 1, wherein deriving a third impedance based on the first impedance and the second impedance comprises:

10. An information handling system, the system comprising: a processor, a memory, and a communication bus; the communication bus is used for realizing communication connection between the processor and the memory;