US 12,461,159 B2
Method for protecting a battery device
Mathias Deiml, Donaustauf (DE); Günther Frizberg, Graz (AT); Kurt Gschweitl, Eggersdorf (AT); and Vipul Dhingra, Graz (AT)
Assigned to AVL List GmbH, Graz (AT)
Appl. No. 17/604,481
Filed by AVL List GmbH, Graz (AT)
PCT Filed Apr. 16, 2020, PCT No. PCT/AT2020/060155
§ 371(c)(1), (2) Date Oct. 18, 2021,
PCT Pub. No. WO2020/210853, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. A 50350/2019 (AT), filed on Apr. 17, 2019.
Prior Publication US 2022/0196751 A1, Jun. 23, 2022
Int. Cl. G01R 31/3832 (2019.01); G01R 31/367 (2019.01); G01R 31/385 (2019.01); G01R 31/392 (2019.01)
CPC G01R 31/3832 (2019.01) [G01R 31/367 (2019.01); G01R 31/385 (2019.01); G01R 31/392 (2019.01)] 16 Claims
OG exemplary drawing
 
1. Method for protecting an electrode of a battery device (100), in particular an electrode of the battery device (100), having the following steps:
determining at least one electrical battery parameter (EBP) of the battery device (100), in order to determine a respective battery situation of the battery device (100),
determining an operating parameter (BP) of an operating current (IB) of the battery device,
calculating a disturbance parameter (SP) for a disturbance current (IS) on the basis of the operating parameter (BP),
wherein the disturbance parameter is one or more of frequency and amplitude, the disturbance parameter is calculated by comparison of the real impedance of the battery device (100) in the respective battery situation and the imaginary impedance based on the respective battery situation, and
wherein the comparison of the real and imaginary impedance forms an impedance curve, the impedance curve having local minimums defining a range of disturbance parameter frequency,
wherein the disturbance parameter is different from the respective operating parameter of the operating current of the battery device,
generating the disturbance current (IS), and
applying the disturbance current (IS) with the operating current (IB) to the one electrode in order to inhibit or reduce an ageing process at the one electrode.