US 12,360,170 B2
Charger with battery state of health estimation
Claude Zominy, Copponex (FR); and Pascal Bornel, Annemasse (FR)
Assigned to JT International S.A., (CH)
Appl. No. 17/290,048
Filed by JT International S.A., Geneva (CH)
PCT Filed Dec. 16, 2019, PCT No. PCT/EP2019/085412
§ 371(c)(1), (2) Date Apr. 29, 2021,
PCT Pub. No. WO2020/127091, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18215670 (EP), filed on Dec. 21, 2018.
Prior Publication US 2021/0396816 A1, Dec. 23, 2021
Int. Cl. G01R 31/392 (2019.01); A24F 40/90 (2020.01); G01R 31/382 (2019.01); H02J 7/00 (2006.01)
CPC G01R 31/392 (2019.01) [A24F 40/90 (2020.01); G01R 31/382 (2019.01); H02J 7/0044 (2013.01); H02J 7/005 (2020.01); H02J 7/007 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of charging a rechargeable battery of an electronic cigarette, the method comprising the steps of:
acquiring historical data relating to the rechargeable battery, wherein the historical data relate to at least one previous charging operation and/or to a default data set;
charging the rechargeable battery during a first period in which the rechargeable battery is charged up to 30-40% of a full state of charge in which a charging voltage is applied;
stopping the charging voltage and resting the rechargeable battery following the first period;
at least partially discharging the rechargeable battery following the step of resting the rechargeable battery;
measuring one or more parameters related to the charging of the rechargeable battery during the step of at least partially discharging the rechargeable battery;
determining a state of health of the rechargeable battery based on the one or more measured parameters and the historical data; and
performing an action on the electronic cigarette based on the determined state of health.