# US 12,007,447 B2 · Evaluation method and device according to purposes of reusable battery

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- Number: US 12,007,447 B2
- Document ID: US12007447B2
- Status: Granted
- Kind: B2
- Application number: 18/454,830
- Filed: 2023-08-24
- Published: 2023-12-07
- Granted: 2024-06-11
- Earliest claimed: 2021-02-24
- Assignees: Pmgrow Corporation
- Applicants: Pmgrow Corporation
- Inventors: Jae Hong Park
- Web page: https://patentgrep.com/patent/US12007447B2

## CPC

- G01R 31/367: Software therefor, e.g. for battery testing using modelling or look-up tables
- H01M 10/4285: {Testing apparatus}
- G01R 31/374: with means for correcting the measurement for temperature or ageing
- G01R 31/387: Determining ampere-hour charge capacity or SoC
- G01R 31/392: Determining battery ageing or deterioration, e.g. state of health
- G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC
- H02J 7/84: Control of state of health [SOH]
- Y02E 60/10: Energy storage using batteries
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

An evaluation method and device according to the purposes of a reusable battery are disclosed. The disclosed method comprises the steps of: obtaining state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of a reusable battery; extracting evaluation parameters from the SOH information, the SOB information, and the SOP information; substituting the evaluation parameters into each of a plurality of evaluation models which are set differently according to use purposes of the reused battery; and calculating an evaluation result corresponding to the use purposes of the reused battery from the evaluation parameters by using the plurality of evaluation models, wherein the SOB information includes information on a correlation between the SOC and the SOB according to a change in a state of charge (SOC) of the reusable battery.

## Claims

### Claim 1

A method for an evaluation of a reusable battery with an aid of a digital computer, the method comprising:
providing the computer with a data base including state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of the reusable battery;
extracting, by the computer, evaluation parameters from the SOH information, the SOB information, and the SOP information;
inputting, by the computer, the evaluation parameters into each of a plurality of evaluation models that differently set a weight for each of the evaluation parameters according to usages of the reusable battery; and
calculating, by the computer, evaluation results corresponding to the usages of the reusable battery from the evaluation parameters using the plurality of evaluation models; and
automatically classifying at least one usage of the reusable battery based on the evaluation results,
wherein the SOB information includes information on correlation between the SOC and the SOB according to a change in the SOC of the reusable battery, and
wherein the evaluation parameter includes information on:
SOC boundary values corresponding to boundary between a plurality of levels set for a SOB value of the reusable battery;
correlation between the SOB and a rate of discharge (ROD) according to a change in the ROD of the reusable battery; and
an upper limit of tolerant output for each operating time of the reusable battery.

### Claim 2 (depends on 1)

The method of claim 1, wherein the plurality of evaluation models set the weight for each of the evaluation parameters based on information on a SOB tolerance section corresponding to a usage of the reusable battery, a use temperature of the reusable battery, and required power of the reusable battery.

### Claim 3 (depends on 2)

The method of claim 2, wherein the evaluation results include evaluation results for a SOC available section according to the usage of the reusable battery that is determined based on the SOB tolerance section corresponding to the usage of the reusable battery, the use temperature of the reusable battery and the required power of the reusable battery, evaluation results for a use temperature tolerance section according to the usage of the reusable battery, and evaluation results for tolerant output according to the usage of the reusable battery.

### Claim 4 (depends on 3)

The method of claim 3, wherein the evaluation results further include recommendation information on a usage suitable for the reusable battery among a predetermined plurality of usages.

### Claim 5

A apparatus for an evaluation of a reusable battery, the apparatus comprising:
a communicator; and
a processor configured to connect to the communicator,
wherein the processor is configured to perform:
a process of obtaining state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of the reusable battery;
a process of extracting evaluation parameters from the SOH information, the SOB information, and the SOP information;
a process of inputting the evaluation parameters into each of a plurality of evaluation models that differently set a weight for each of the evaluation parameters according to usages of the reusable battery;
a process of calculating evaluation results corresponding to the usages of the reusable battery from the evaluation parameters using the plurality of evaluation models; and
a process of automatically classifying at least one usage of the reusable battery based on the evaluation results,
wherein the SOB information includes information on correlation between the SOC and the SOB according to a change in the SOC of the reusable battery, and
wherein the evaluation parameter includes information on:
SOC boundary values corresponding to boundary between a plurality of levels set for a SOB value of the reusable battery;
correlation between the SOB and a rate of discharge (ROD) according to a change in the ROD of the reusable battery; and
an upper limit of tolerant output for each operating time of the reusable battery.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the processor is further configured to perform a process of automatically outputting the evaluation results comprising a plurality of fields, the plurality of fields include a field for an evaluation grade of the reusable battery when applied to a corresponding usage, a field for a state of charge (SOC) range capable of operating the reusable battery in the corresponding usage, and a field for a tolerant output current of the reusable battery in the corresponding usage.

### Claim 7

A method for an evaluation of a reusable battery with an aid of a digital computer, the method comprising:
providing the computer with a data base including state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of the reusable battery;
extracting, by the computer, evaluation parameters from the SOH information, the SOB information, and the SOP information;
inputting, by the computer, the evaluation parameters into each of a plurality of evaluation models that differently set a weight for each of the evaluation parameters according to usages of the reusable battery; and
calculating, by the computer, evaluation results corresponding to the usages of the reusable battery from the evaluation parameters using the plurality of evaluation models;
automatically classifying at least one usage of the reusable battery based on the evaluation results; and
automatically outputting, by the computer, the evaluation results comprising a plurality of fields, the plurality of fields include a field for an evaluation grade of the reusable battery when applied to a corresponding usage, a field for a state of charge (SOC) range capable of operating the reusable battery in the corresponding usage, and a field for a tolerant output current of the reusable battery in the corresponding usage,
wherein the SOB information includes information on correlation between the SOC and the SOB according to a change in the SOC of the reusable battery, and
wherein the evaluation parameter includes information on:
SOC boundary values corresponding to boundary between a plurality of levels set for a SOB value of the reusable battery;
correlation between the SOB and a rate of discharge (ROD) according to a change in the ROD of the reusable battery; and
an upper limit of tolerant output for each operating time of the reusable battery.