Granted Patent B2

US 12,542,323 · App. 17/255,700 · Granted Feb 3, 2026

Inventors: Marcin Rejman (Waiblingen, DE); Benjamin Grauer (Stuttgart, DE); Thorsten Seidel (Remseck, DE); Mickael Segret (Stuttgart, DE)

Assignee: ROBERT BOSCH GMBH

H01M50/242B25F5/02H01M50/213H01M50/247H01M2220/30

Abstract

Claims (29)

1 . A rechargeable battery pack for a hand-held power tool, comprising:

a housing in which at least one rechargeable battery cell; and

at least one protective element that is connected to the housing,

wherein the at least one rechargeable battery cell is situated in a cell housing, the protective element being situated inside and/or outside the cell housing,

wherein the cell housing includes at least one receiving area for the at least one rechargeable battery cell, the receiving area being delimited by a wall against whose inner side the rechargeable battery cell rests, and against whose outer side the protective element rests,

wherein the wall and the protective element are adapted, at least in part, to an outer contour of the at least one rechargeable battery cell,

wherein the protective element is made of a metallic material.

2 . The rechargeable battery pack as recited in claim 1 , wherein the at least one rechargeable battery cell includes a metallic cell jacket, and the protective element has a greater wall thickness than the cell jacket of the at least one rechargeable battery cell.

3 . The rechargeable battery pack as recited in claim 1 , wherein the protective element is connected to the housing in a force-fit manner and/or a form-fit manner.

4 . The rechargeable battery pack as recited in claim 1 , wherein the protective element has a greater rigidity than the housing, a rigidity of the protective element being at least ten times greater than the housing.

5 . The rechargeable battery pack as recited in claim 1 , wherein the protective element is situated in a receiving pocket of the cell housing, the protective element being fastened in the cell housing in a force-fit manner in the receiving pocket of the cell housing.

6 . The rechargeable battery pack as recited in claim 1 , wherein the at least one rechargeable battery cell is protected by the protective element along at least 50% of a length of the at least one rechargeable battery cell.

7 . The rechargeable battery pack as recited in claim 1 , wherein the at least one rechargeable battery cell is protected by the protective element along at least 75% of a length of the at least one rechargeable battery cell.

8 . The rechargeable battery pack as recited in claim 1 , wherein the at least one rechargeable battery cell is protected by the protective element along at least 90% of a length of the at least one rechargeable battery cell.

9 . The rechargeable battery pack as recited in claim 1 , wherein the protective element is situated in an area of an edge of the rechargeable battery pack that extends in parallel to a longitudinal extension of the at least one rechargeable battery cell.

10 . The rechargeable battery pack as recited in claim 1 , wherein the rechargeable battery pack includes a mechanical interface for detachably connecting the rechargeable battery pack to a hand-held power tool, the protective element being situated spaced apart from the mechanical interface on a side of the rechargeable battery pack opposite from the mechanical interface.

11 . The rechargeable battery pack as recited in claim 1 , wherein the protective element is coupled to an energy absorption element, the energy absorption element being configured in such a way that the energy absorption element under an application of force penetrates at least partially into the housing into the cell housing.

12 . The rechargeable battery pack as recited in claim 11 , wherein the energy absorption element is configured as toothing.

13 . A system, comprising:

a hand-held power tool; and

a rechargeable battery pack including a housing in which at least one rechargeable battery cell, and at least one protective element that is connected to the housing;

wherein the housing of the rechargeable battery pack in a connected state partially forms an outer surface of the system; and

wherein the protective element is situated between an area of the rechargeable battery pack that forms the outer surface of the system, and at least one rechargeable battery cell,

wherein the at least one rechargeable battery cell is situated in a cell housing, the protective element being situated inside and/or outside the cell housing,

wherein the cell housing includes at least one receiving area for the at least one rechargeable battery cell, the receiving area being delimited by a wall against whose inner side the rechargeable battery cell rests, and against whose outer side the protective element rests,

wherein the wall and the protective element are adapted, at least in part, to an outer contour of the at least one rechargeable battery cell,

wherein the protective element is made of a metallic material.

14 . The rechargeable battery pack as recited in claim 1 , wherein the metallic material includes steel, or titanium, or aluminum.

15 . The system as recited in claim 13 , wherein the metallic material includes steel, or titanium, or aluminum.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (17)