# US 2018/0321730 A1 · Methods for adaptive battery charging and electronic device thereof

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- Number: US 2018/0321730 A1
- Document ID: US20180321730A1
- Status: Published application
- Kind: A1
- Application number: 15/593,924
- Filed: 2017-05-12
- Published: 2018-11-08
- Earliest claimed: 2017-05-04
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Aravinda Reddy MANDLI; Sanoop RAMACHANDRAN; Ashish KHANDELWAL; Ki Young KIM
- Web page: https://patentgrep.com/patent/US20180321730A1

## CPC

- H02J 7/50: acting upon multiple batteries simultaneously or sequentially
- G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C)
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A method for adaptive battery charging and an apparatus therefor are disclosed. The present disclosure relates to a battery system for electronic devices and more particularly to the rate of charging of batteries in electronic devices. The method and apparatus are directed to dynamically determining the charging rate of a battery of an electronic device, based on factors such as user profile, usage, age of battery, etc. The method discloses determining at least one charging rate for a battery, determining at least one model representing an effect of degradation of the battery and a charging time for at least one charging mechanism, determining charging profiles over a cycle life of the battery based on the at least one model, and applying the charging profiles to the battery.

## Claims

### Claim 1

A method for operating an electronic device, the method comprising:
determining at least one charging rate for a battery;
determining at least one model representing an effect of degradation of the battery and a charging time for at least one charging mechanism;
determining a plurality of charging profiles over a cycle life of the battery based on the at least one model; and
applying the plurality of charging profiles to the battery.

### Claim 2 (depends on 1)

The method of claim 1, wherein the determining of the plurality of charging profiles comprises optimising the charging time over a pre-defined number of charging cycles.

### Claim 3 (depends on 1)

The method of claim 1, wherein the plurality of charging profiles is determined based on at least one of a charging time of the battery, an age of the battery, at least one option set by a user of the device, usage parameters of the device, user inputs, a temperature, or a power source.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
detecting a user input for customizing the plurality of charging profiles.

### Claim 5 (depends on 1)

The method of claim 1, wherein the at least one charging mechanism comprises at least one of constant current-constant voltage (CCCV) charging, multistage constant current (MSCC) charging, linearly decreasing current (LDC) charging, pulsed charging, constant current+pulsed charging (CCPC), pulse charging (PC), variable voltage (VV) charging, constant power (CP) charging, or boost charging (BC).

### Claim 6 (depends on 1)

The method of claim 1, wherein the determining the plurality of charging profiles comprises:
determining an optimization problem that utilizes the at least one model; and
solving the optimization problem to minimize a weighted average of the charging time over a pre-defined number of charging cycles.

### Claim 7 (depends on 1)

The method of claim 1, wherein the determining of the plurality of charging profiles comprises:
determining an optimization problem that utilizes at least one model; and
solving the optimization problem to minimize a deviation from a standard charging time over a pre-defined number of charging cycles.

### Claim 8 (depends on 1)

The method of claim 1, where the applying of the plurality of charging profiles to the battery comprises:
determining an ageing parameter of the battery; and
adapting the plurality of charging profiles based on the ageing parameter.

### Claim 9 (depends on 1)

The method of claim 1, where the applying of the plurality of charging profiles to the battery comprises:
determining an order for applying the plurality of charging profiles; and
applying the plurality of charging profiles according to the order.

### Claim 10

An electronic device comprising:
a battery; and
at least one processor configured to:
determine at least one charging rate for the battery,
determine at least one model representing an effect of degradation of the battery and a charging time for at least one charging mechanism,
determine a plurality of charging profiles over a cycle life of the battery based on the at least one model, and
apply the plurality of charging profiles to the battery.

### Claim 11 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to optimize the charging time over a pre-defined number of charging cycles.

### Claim 12 (depends on 10)

The electronic device of claim 10, wherein the plurality of charging profiles is determined based on at least one of a charging time of the battery, an age of the battery, at least one option set by a user of the device, usage parameters of the device, user inputs, a temperature, or a power source.

### Claim 13 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to detect a user input for customizing the plurality of charging profiles.

### Claim 14 (depends on 10)

The electronic device of claim 10, wherein the at least one charging mechanism comprises at least one of constant current-constant voltage (CCCV) charging, multistage constant current (MSCC) charging, linearly decreasing current (LDC) charging, pulsed charging, constant current+pulsed charging (CCPC), pulse charging (PC), variable voltage (VV) charging, constant power (CP) charging, or boost charging (BC).

### Claim 15 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to:
determine an optimization problem that utilizes the at least one model, and
solve the optimization problem to minimize a weighted average of the charging time over a pre-defined number of charging cycles.

### Claim 16 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to:
determine an optimization problem that utilizes at least one model; and
solve the optimization problem to minimize a deviation from a standard charging time over a pre-defined number of charging cycles.

### Claim 17 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to:
determine an ageing parameter of the battery; and
adapt the plurality of charging profiles based on the ageing parameter.

### Claim 18 (depends on 10)

The electronic device of claim 10, wherein the at least one processor is further configured to:
determine an order for applying the plurality of charging profiles; and
apply the plurality of charging profiles according to the order.

### Claim 19

An electronic device comprising:
a battery; and
at least one processor configured to:
choose a plurality of charging rates for a duration over a life of the battery,
determine a plurality of charging profiles corresponding to the plurality of charging rates,
adapt at least one of the plurality of charging profiles based on at least one of a battery age, a charging time and a user input, and
apply, to the battery, the plurality of charging profiles including the adapted at least one of the plurality of charging profiles for the duration.

### Claim 20 (depends on 19)

The electronic device of claim 19, wherein the at least one processor is further configured to adapt the at least one of the plurality of charging profiles by optimizing the charging time over at least one charging cycle.
