KR20200093228A - Lfp 전지의 soc 산출 장치 및 방법 - Google Patents
Lfp 전지의 soc 산출 장치 및 방법 Download PDFInfo
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- KR20200093228A KR20200093228A KR1020190010433A KR20190010433A KR20200093228A KR 20200093228 A KR20200093228 A KR 20200093228A KR 1020190010433 A KR1020190010433 A KR 1020190010433A KR 20190010433 A KR20190010433 A KR 20190010433A KR 20200093228 A KR20200093228 A KR 20200093228A
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- lfp battery
- battery
- lfp
- voltage
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 40
- 238000004364 calculation method Methods 0.000 claims abstract description 32
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910001317 nickel manganese cobalt oxide (NMC) Inorganic materials 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
Description
도 2는 본 발명의 일 실시예에 따른 LFP 전지의 충전시의 전압과 SoC를 나타낸 그래프
도 3은 본 발명의 일 실시예에 따른 LFP 전지의 SoC 산출 장치에 의해 수행되는 LFP 전지의 SoC 산출 방법의 흐름도
102: 감지부
104: SoC 산출부
106: SoC 초기화부
Claims (6)
- LFP(LiFePO4) 전지의 SoC(State of Charge)를 산출하는 SoC 산출 장치에 있어서,
상기 LFP 전지의 전압, 전류, 및 온도 중 하나 이상을 감지하는 감지부;
상기 전압 데이터, 상기 전류 데이터, 및 상기 온도 데이터 중 하나 이상을 이용하여 상기 LFP 전지의 상기 SoC를 산출하는 SoC 산출부; 및
상기 전압 데이터의 시간당 변화량을 산출하고, 상기 전압 데이터의 시간당 변화량이 설정된 기준을 초과하는 경우, 산출된 상기 SoC를 설정된 값으로 초기화하는 SoC 초기화부를 포함하는 LFP 전지의 SoC 산출 장치.
- 청구항 1에 있어서,
상기 전압 데이터는 개로 전압(Open Circuit Voltage; OCV) 데이터이며, 상기 전류 데이터는 시간당 누적된 전류 값인 적산 전류 데이터인 LFP 전지의 SoC 산출 장치.
- 청구항 1에 있어서,
상기 SoC 초기화부는, 상기 LFP 전지의 충방전 횟수에 따라 상기 설정된 값을 변경하는 LFP 전지의 SoC 산출 장치.
- 청구항 1에 있어서,
상기 SoC 초기화부는, 상기 LFP 전지가 설정된 사이클 이상 충전 및 방전된 경우, 상기 설정된 값을 하향 변경하는 LFP 전지의 SoC 산출 장치.
- 청구항 1에 있어서,
상기 SoC 초기화부는, 산출된 상기 SoC가 설정된 값으로 초기화된 시기로부터 설정된 시간 이상 경과되고, 상기 전압 데이터의 시간당 변화량이 설정된 기준을 초과하는 경우, 산출된 상기 SoC를 설정된 값으로 초기화하는 LFP 전지의 SoC 산출 장치.
- LFP(LiFePO4) 전지의 SoC(State of Charge)를 산출하는 SoC 산출 장치에 의해 수행되는 SoC 산출 방법에 있어서,
상기 LFP 전지의 전압, 전류, 및 온도 중 하나 이상을 감지하는 단계;
상기 전압 데이터, 상기 전류 데이터, 및 상기 온도 데이터 중 하나 이상을 이용하여 상기 LFP 전지의 상기 SoC를 산출하는 단계;
상기 전압 데이터의 시간당 변화량을 산출하는 단계; 및
상기 전압 데이터의 시간당 변화량이 설정된 기준을 초과하는 경우, 산출된 상기 SoC를 설정된 값으로 초기화하는 단계를 포함하는 LFP 전지의 SoC 산출 방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190010433A KR20200093228A (ko) | 2019-01-28 | 2019-01-28 | Lfp 전지의 soc 산출 장치 및 방법 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190010433A KR20200093228A (ko) | 2019-01-28 | 2019-01-28 | Lfp 전지의 soc 산출 장치 및 방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20200093228A true KR20200093228A (ko) | 2020-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020190010433A Ceased KR20200093228A (ko) | 2019-01-28 | 2019-01-28 | Lfp 전지의 soc 산출 장치 및 방법 |
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| Country | Link |
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| KR (1) | KR20200093228A (ko) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220163114A (ko) * | 2021-06-02 | 2022-12-09 | 경북대학교 산학협력단 | 인산철 배터리의 만충 전압 구간 기반 용량 추정 방법, 이를 수행하기 위한 기록 매체 및 장치 |
| KR20240049310A (ko) * | 2021-11-26 | 2024-04-16 | 비와이디 컴퍼니 리미티드 | 배터리 용량 추정 방법 및 장치와 컴퓨터 저장 매체 |
| US12474380B2 (en) | 2021-02-16 | 2025-11-18 | Lg Energy Solution, Ltd. | Battery management system, battery pack, energy storage system and battery management method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101189150B1 (ko) | 2008-01-11 | 2012-10-10 | 에스케이이노베이션 주식회사 | 배터리 관리 시스템에서 배터리의 soc 측정 방법 및 장치 |
-
2019
- 2019-01-28 KR KR1020190010433A patent/KR20200093228A/ko not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101189150B1 (ko) | 2008-01-11 | 2012-10-10 | 에스케이이노베이션 주식회사 | 배터리 관리 시스템에서 배터리의 soc 측정 방법 및 장치 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12474380B2 (en) | 2021-02-16 | 2025-11-18 | Lg Energy Solution, Ltd. | Battery management system, battery pack, energy storage system and battery management method |
| KR20220163114A (ko) * | 2021-06-02 | 2022-12-09 | 경북대학교 산학협력단 | 인산철 배터리의 만충 전압 구간 기반 용량 추정 방법, 이를 수행하기 위한 기록 매체 및 장치 |
| KR20240049310A (ko) * | 2021-11-26 | 2024-04-16 | 비와이디 컴퍼니 리미티드 | 배터리 용량 추정 방법 및 장치와 컴퓨터 저장 매체 |
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