JP6169121B2 - センサ、リチウムイオン電池の異常検知方法 - Google Patents
センサ、リチウムイオン電池の異常検知方法 Download PDFInfo
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- JP6169121B2 JP6169121B2 JP2015081900A JP2015081900A JP6169121B2 JP 6169121 B2 JP6169121 B2 JP 6169121B2 JP 2015081900 A JP2015081900 A JP 2015081900A JP 2015081900 A JP2015081900 A JP 2015081900A JP 6169121 B2 JP6169121 B2 JP 6169121B2
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- 238000001514 detection method Methods 0.000 title claims description 63
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims description 34
- 229910001416 lithium ion Inorganic materials 0.000 title claims description 34
- 230000005856 abnormality Effects 0.000 title claims description 33
- 230000008859 change Effects 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 18
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 10
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 9
- 230000003446 memory effect Effects 0.000 claims description 8
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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Classifications
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- 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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- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Secondary Cells (AREA)
Description
第2の発明は、NiTi系形状記憶合金製のセンサ本体と、前記センサ本体と接続され、歪検知および温度検知をおこなう検知部と、を具備し、初期状態において、前記センサ本体はマルテンサイト相であり、歪が0であり、前記センサ本体が測定対象に固定され、前記測定対象の歪変化または温度変化によって生じる、前記センサ本体の電気抵抗変化を前記検知部で検知することを特徴とするセンサである。
3………センサ本体
5………リチウムイオン電池
7………接合部
9………検知部
9a………非反転増幅器
9b………歪検知用比較器
9c………温度上昇検知用比較器
10………検知回路
11、11a、11b………警報部
Claims (6)
- NiTi系形状記憶合金製の、二方向形状記憶効果を有するセンサ本体と、
前記センサ本体と接続され、歪検知および温度検知をおこなう検知部と、
を具備し、
前記センサ本体が測定対象に固定され、
前記測定対象の歪変化または温度変化によって生じる、前記センサ本体の電気抵抗変化を前記検知部で検知することを特徴とするセンサ。 - NiTi系形状記憶合金製のセンサ本体と、
前記センサ本体と接続され、歪検知および温度検知をおこなう検知部と、
を具備し、
初期状態において、前記センサ本体はマルテンサイト相であり、歪が0であり、
前記センサ本体が測定対象に固定され、
前記測定対象の歪変化または温度変化によって生じる、前記センサ本体の電気抵抗変化を前記検知部で検知することを特徴とするセンサ。 - 前記センサ本体は、Niの一部が4〜10at%Cuに置換されることを特徴とする請求項1または請求項2記載のセンサ。
- 前記検知部で異常を検知した際に警報を発する警報部を具備することを特徴とする請求項1から請求項3のいずれかに記載のセンサ。
- 前記測定対象がリチウムイオン電池であることを特徴とする請求項1から請求項4のいずれかに記載のセンサ。
- NiTi系形状記憶合金製のセンサ本体と、
前記センサ本体と接続され、歪検知および温度検知をおこなう検知部と、
前記検知部で異常を検知した際に警報を発する警報部と、
を用い、
1本の前記センサ本体をリチウムイオン電池に固定し、
前記検知部は、測定された前記センサ本体の電気抵抗値を初期状態と比較し、
前記センサ本体の電気抵抗値が初期状態よりも低い場合には、温度検知用閾値と前記センサ本体の電気抵抗値と比較して、前記センサ本体の電気抵抗値が前記温度検知用閾値よりも低い場合に前記警報部が警報を発し、
前記センサ本体の電気抵抗値が初期状態よりも高い場合には、歪検知用閾値と前記センサ本体の電気抵抗値と比較して、前記センサ本体の電気抵抗値が前記歪検知用閾値よりも高い場合に前記警報部が警報を発することを特徴とするリチウムイオン電池の異常検知方法。
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KR102447552B1 (ko) * | 2018-03-09 | 2022-09-23 | 주식회사 엘지에너지솔루션 | 이차 전지 상태 검출 장치 |
US11867503B2 (en) | 2018-08-03 | 2024-01-09 | Semiconductor Energy Laboratory Co., Ltd. | Anomaly detection system for secondary battery |
CN111600086B (zh) * | 2019-02-20 | 2021-07-20 | 江苏师范大学 | Led应急灯的电池鼓包检测模块 |
CN111596213B (zh) * | 2019-02-20 | 2021-10-08 | 江苏师范大学 | 电池状态监控专用的电阻膜 |
KR102152572B1 (ko) * | 2019-03-22 | 2020-09-07 | 영남대학교 산학협력단 | 이차 전지의 팽창 센싱 시스템 |
KR20230063714A (ko) | 2021-11-02 | 2023-05-09 | 주식회사 엘지에너지솔루션 | 과충전 방지가 가능한 이차전지 및 이의 충전방법 |
CN217786150U (zh) * | 2022-05-05 | 2022-11-11 | 宁德时代新能源科技股份有限公司 | 应变检测组件、电池以及用电设备 |
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GB8312831D0 (en) * | 1983-05-10 | 1983-06-15 | Leuven Res & Dev Vzw | Temperature monitoring device |
JPS6129767A (ja) * | 1984-07-20 | 1986-02-10 | Diesel Kiki Co Ltd | 加速度センサ |
JPH02221685A (ja) * | 1989-02-23 | 1990-09-04 | Shimadzu Corp | 真空排気装置 |
JPH06258010A (ja) * | 1993-03-05 | 1994-09-16 | Tokin Corp | ひずみゲージ |
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