公开(公告)号：US20240339684A1

公开(公告)日：2024-10-10

申请号：US18700018

申请日：2022-11-17

Applicant: Hilti Aktiengesellschaft

Inventor： Johannes LANDESFEIND ,  Philipp BRAUN

IPC: H01M10/44 ,  H01M10/0525 ,  H01M10/48 ,  H02J7/00

CPC classification number: H01M10/443 ,  H01M10/486 ,  H02J7/007194 ,  H01M10/0525 ,  H01M2220/30

Abstract: In a method for charging a rechargeable battery of a mobile power tool, wherein the rechargeable battery has an electrolyte that is liquid at room temperature, charging is carried out at least temporarily at a core temperature (TK) of at least 60° C. and at a charging rate of at least 3 C. A charging apparatus is also provided.

公开(公告)号：US20240339855A1

公开(公告)日：2024-10-10

申请号：US18681387

申请日：2022-08-04

Applicant: Hilti Aktiengesellschaft

Inventor： Johannes LANDESFEIND ,  Philipp BRAUN ,  Roy DATTATREYA

IPC: H02J7/00 ,  B25F5/02

CPC classification number: H02J7/007194 ,  H02J7/0047 ,  B25F5/02

Abstract: A method for open-loop and closed-loop control of a rechargeable battery having at least one energy storage cell, at least one temperature sensor for detecting at least one temperature value of the rechargeable battery, a current measuring device, a voltage measuring device and also a rechargeable battery control device having at least one rechargeable battery storage device. The method involves the method steps of setting a first charging current value for charging the rechargeable battery; charging the rechargeable battery with the first charging current value until a first temperature value is reached; setting a second charging current value for charging the rechargeable battery for maintaining the first temperature value for a first predetermined time duration; setting a third charging current value for charging the rechargeable battery after a second predetermined time duration has elapsed; and setting a first voltage value after the second predetermined time duration has elapsed. Rechargeable battery and charger for carrying out the method.

公开(公告)号：US20230146021A1

公开(公告)日：2023-05-11

申请号：US17802293

申请日：2021-03-05

Applicant: Hilti Aktiengesellschaft

Inventor： Johannes LANDESFEIND

IPC: H01M50/578 ,  H01M50/105 ,  H01M50/211

CPC classification number: H01M50/578 ,  H01M50/105 ,  H01M50/211

Abstract: Pouch cell assembly with at least one pouch cell, the pouch cell assembly having at least one pressure-sensitive sensor film, in particular a pressure-sensitive conductive film (pressure-sensitive conductive sheet), which surrounds or delimits at least certain portions of the pouch cell in such a way that inflation of the pouch cell has the effect of compressing the sensor film and thereby changing an electrical resistance of the sensor film.