JP2018520622A - 電池充電限界予測方法、それを用いた電池急速充電方法及び装置 - Google Patents
電池充電限界予測方法、それを用いた電池急速充電方法及び装置 Download PDFInfo
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- G—PHYSICS
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- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
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- 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
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- H—ELECTRICITY
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- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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Abstract
Description
Claims (14)
- 電池充電限界予測方法であって、
(a)単位電池と基準電極を備える三電極セルを製作する段階と、
(b)前記三電極セルを充電しながら、SOCによる負極電位(CCV)を測定する段階と、
(c)前記負極電位が低下せず一定になり始める地点をLi−めっきの発生地点と判断して充電限界として設定する段階とを含んでなる、電池充電限界予測方法。 - 前記SOCによる負極電位(CCV)のグラフにおいて、負極電位の傾きが変わる地点を前記充電限界として設定することを特徴とする、請求項1に記載の電池充電限界予測方法。
- 充電率を変化させて前記(b)段階及び(c)段階を行う過程を繰り返して、前記充電率における充電限界を取得し、それを総合して充電プロトコルを得ることを特徴とする、請求項1に記載の電池充電限界予測方法。
- 電池充電方法であって、
1Cより高い初期充電率から始めて、電池の負極電位が低下せず一定になり始める地点をLi−めっきの発生地点と判断して充電限界として設定し、
前記充電限界に到達した際、次の充電率で充電する方式により、前記充電率を段階的に減少させて電池を充電することを含んでなる、電池充電方法。 - 前記負極電位が低下せず一定になり始める地点と、及び/又は前記負極電位の傾きが変わる地点とを、前記充電限界として設定することを特徴とする、請求項4に記載の電池充電方法。
- 前記初期充電率が1.5C〜5Cであることを特徴とする、請求項4に記載の電池充電方法。
- 電池充電中において、
前記充電限界に到達した際、次の充電率で充電する方式により、前記充電率を段階的に減少させて電池を充電する段階は、前記電池のSOCが80%になるまで行うものであることを特徴とする、請求項4に記載の電池充電方法。 - 電池充電方法であって、
単位電池と基準電極を備えた三電極セルを用意し、SOCによる負極電位を相異なる充電率毎に測定しデータを取得する段階と、
前記取得されたデータから前記負極電位が低下せず一定になり始める地点をLi−めっきの発生地点と判断し充電限界として設定して、充電率を段階的に変更するプロトコルを得る段階と、
前記プロトコルで電池を充電する段階とを含んでなる、電池充電方法。 - 前記負極電位が低下せず一定になり始める地点と、及び/又は前記負極電位の傾きが変わる地点とを、前記充電限界として設定することを特徴とする、請求項8に記載の電池充電方法。
- 前記データ取得段階の充電率が0.25C〜5C範囲であることを特徴とする、請求項8に記載の電池充電方法。
- 前記プロトコルは初期充電率が1Cより高いことを特徴とする、請求項8に記載の電池充電方法。
- 前記プロトコルは初期充電率が1.5C〜5Cであることを特徴とする、請求項8に記載の電池充電方法。
- 前記プロトコルは、段階的に減少する充電率、及び各充電率における充電終了後の充電電圧情報を含んでなることを特徴とする、請求項8に記載の電池充電方法。
- 電池充電装置であって、
電源から入力される充電電圧を出力する電源部と、
前記電源部から入力される前記充電電圧を電池に充電電流として出力して前記電池を充電し、前記電池の前記充電電圧が予め設定された段階に到達した際、前記充電電流を変更して、前記電池に出力される前記充電電流を段階的に変化させるように制御する電池充電部とを備えてなり、
前記電池充電部は、前記電池の負極電位が低下せず一定になり始める地点をLi−めっきの発生地点と判断し充電限界として設定して、充電率を段階的に変更するプロトコルにより前記充電電流を段階的に調整し、電池の充電を行うものであることを特徴とする、電池充電装置。
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KR1020150116247A KR101985812B1 (ko) | 2015-08-18 | 2015-08-18 | 전지 충전 한계 예측 방법과 이를 이용한 전지 급속 충전 방법 및 장치 |
PCT/KR2016/008614 WO2017030309A1 (ko) | 2015-08-18 | 2016-08-04 | 전지 충전 한계 예측 방법과 이를 이용한 전지 급속 충전 방법 및 장치 |
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EP3287801A4 (en) | 2018-10-17 |
PL3287801T3 (pl) | 2019-09-30 |
EP3287801B1 (en) | 2019-05-08 |
CN107710545A (zh) | 2018-02-16 |
KR101985812B1 (ko) | 2019-06-04 |
WO2017030309A1 (ko) | 2017-02-23 |
EP3287801A1 (en) | 2018-02-28 |
KR20170021630A (ko) | 2017-02-28 |
US10605870B2 (en) | 2020-03-31 |
US20180292461A1 (en) | 2018-10-11 |
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