JP7470642B2 - 二次電池の充電制御回路 - Google Patents
二次電池の充電制御回路 Download PDFInfo
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- JP7470642B2 JP7470642B2 JP2020552176A JP2020552176A JP7470642B2 JP 7470642 B2 JP7470642 B2 JP 7470642B2 JP 2020552176 A JP2020552176 A JP 2020552176A JP 2020552176 A JP2020552176 A JP 2020552176A JP 7470642 B2 JP7470642 B2 JP 7470642B2
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Images
Classifications
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
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Description
図2A、図2Bは本発明の一態様を示すブロック図である。
図3は本発明の一態様を示すブロック図である。
図4Aは本発明の一態様を示す電気自動車のブロック図であり、図4Bは二次電池の斜視図である。
図5は本発明の一態様を示すブロック図である。
図6A、図6B、図6C、図6D、図6E、図6F、図6Gは、メモリの回路構成例を説明する図である。
図7はトランジスタの一例を説明する断面図である。
図8はトランジスタの一例を説明する断面図である。
図9A、図9B、図9Cは、トランジスタの一例を説明する断面図である。
図10は本発明の一態様を示すブロック図である。
図11A、図11B、図11Cは、移動体の一例を示す図である。
図12A、図12Bは、二次電池の一例を示す斜視図であり、図12Cは二次電池の充電時のモデル図である。
温度制御する二次電池(以下バッテリとも呼ぶ)の異常検知システムBTOS(Battery operating system、又はBattery oxide semiconductor)(BMS:バッテリーマネージメントシステム)の全体ブロック図を図1に示す。
本実施の形態では、図4Aを用いて電気自動車(EV)に適用する例を示す。
本実施の形態では、記憶手段の回路構成例を図6A乃至図6Gに示す。図6A乃至図6Gは、それぞれが記憶素子として機能する。図6Aに示す記憶素子410は、トランジスタM1と、容量素子CAと、を有する。記憶素子410は、1つのトランジスタと1つの容量素子を有する記憶素子である。
本実施の形態では、上記実施の形態で説明した記憶素子の構成に適用可能なトランジスタの構成、具体的には異なる電気特性を有するトランジスタを積層して設ける構成について説明する。特に本実施の形態では、半導体装置を構成するメモリ回路が有する各トランジスタの構成について説明する。当該構成とすることで、半導体装置の設計自由度を高めることができる。また、異なる電気特性を有するトランジスタを積層して設けることで、半導体装置の集積度を高めることができる。
本実施の形態では、加熱装置132、及び冷却装置131に加えて、さらにアラームなどを鳴らして使用者に警告を示す例を図10に示す。図10はブロック図であり、図1と一部異なるだけであるため、同じ部分の説明はここでは省略することとする。
温度制御する二次電池(以下バッテリとも呼ぶ)の異常検知システムの全体ブロック図を図5に示す。
Claims (2)
- 二次電池の温度を検出する温度センサと、
前記温度センサからのアナログ信号を入力し、パルス信号を生成する第1の温度比較回路及び第2の温度比較回路と、
前記第1の温度比較回路で設定した2つの温度範囲内で動作する前記二次電池の加熱装置と、
前記第2の温度比較回路で設定した2つの温度範囲内で動作する前記二次電池の冷却装置と、
記憶手段と、を有し、
前記第1の温度比較回路は、2つの閾値を持つコンパレータを有し、
前記記憶手段は半導体層に酸化物半導体を有するトランジスタと、容量素子と、第1の配線と、第2の配線と、第3の配線と、を有し、
前記トランジスタは第1のゲートと第2のゲートと、を有し、
前記トランジスタのソースおよびドレインの一方は、前記第1の配線と電気的に接続し、
前記トランジスタのソースおよびドレインの他方は、前記容量素子の電極の一方と電気的に接続し、
前記トランジスタの第1のゲートは、前記第2の配線と電気的に接続し、
前記トランジスタの第2のゲートは、前記第3の配線と電気的に接続し、
前記記憶手段はアナログ信号を保持する機能を有する、二次電池の充電制御回路。 - 二次電池の温度を検出する温度センサと、
前記温度センサからのアナログ信号を入力し、パルス信号を生成する第1の温度比較回路及び第2の温度比較回路と、
前記第1の温度比較回路で設定した2つの温度範囲内で動作する前記二次電池の加熱装置と、
前記第2の温度比較回路で設定した2つの温度範囲内で動作する前記二次電池の冷却装置と、
記憶手段と、を有し、
前記第1の温度比較回路は、2つの閾値を持つコンパレータを有し、
前記記憶手段は半導体層に酸化物半導体を有するトランジスタと、容量素子と、第1の配線と、第2の配線と、第3の配線と、を有し、
前記トランジスタは第1のゲートと第2のゲートと、を有し、
前記トランジスタのソースおよびドレインの一方は、前記第1の配線と電気的に接続し、
前記トランジスタのソースおよびドレインの他方は、前記容量素子の電極の一方と電気的に接続し、
前記トランジスタの第1のゲートは、前記第2の配線と電気的に接続し、
前記トランジスタの第2のゲートは、前記第1のゲートと電気的に接続し、
前記記憶手段はアナログ信号を保持する機能を有する、二次電池の充電制御回路。
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PCT/IB2019/058757 WO2020084386A1 (ja) | 2018-10-25 | 2019-10-15 | 二次電池の充電制御回路及び異常検知システム |
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JP2010124688A (ja) | 2008-02-06 | 2010-06-03 | Sony Corp | 充電装置 |
JP2018142544A (ja) | 2012-12-28 | 2018-09-13 | 株式会社半導体エネルギー研究所 | 蓄電システム |
JP2018151443A (ja) | 2017-03-10 | 2018-09-27 | 株式会社半導体エネルギー研究所 | 半導体装置 |
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JPH09266639A (ja) * | 1996-03-27 | 1997-10-07 | Makita Corp | 充電装置 |
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JP2010086774A (ja) | 2008-09-30 | 2010-04-15 | Toshiba Corp | 二次電池の残量管理システムおよび残量管理方法 |
JP2018142544A (ja) | 2012-12-28 | 2018-09-13 | 株式会社半導体エネルギー研究所 | 蓄電システム |
JP2018151443A (ja) | 2017-03-10 | 2018-09-27 | 株式会社半導体エネルギー研究所 | 半導体装置 |
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