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KR-20260064096-A - BATTERY MODULE

KR20260064096AKR 20260064096 AKR20260064096 AKR 20260064096AKR-20260064096-A

Abstract

A battery module according to an embodiment includes a plurality of secondary batteries arranged in one direction and including a terminal portion; a plurality of first connection tabs connecting the secondary batteries to an external power circuit; a plurality of second connection tabs connecting the plurality of secondary batteries; and a housing for fixing the plurality of secondary batteries, wherein the first connection tab includes a first shorting portion including the first cutting portion, and the second connection tab includes a second shorting portion including the second cutting portion, and the size of the first connection tab is larger than the size of the second connection tab.

Inventors

  • 양동복

Assignees

  • 삼성에스디아이 주식회사

Dates

Publication Date
20260507
Application Date
20241031

Claims (20)

  1. A plurality of secondary batteries including terminal portions and arranged in one direction; A plurality of first connection tabs connecting the above secondary battery and an external power circuit; A plurality of second connection tabs connecting the plurality of secondary batteries; and It includes a housing that secures the plurality of secondary batteries mentioned above, The first connecting tab above includes a first section including the first cutting section, and The second connecting tab above includes a second section including the second cutting section, and A battery module in which the size of the first connection tab is larger than the size of the second connection tab.
  2. In Article 1, The first connection tab above has a first width in an area other than the first short section, The above-mentioned first section has a width 1a formed by the above-mentioned first cutting section, The above 1a width is a battery module smaller than the above 1 width.
  3. In Paragraph 2, The second connecting tab above has a second width in an area other than the second section, The above second section has a width 2a formed by the above second cutting section, The above 2a width is a battery module smaller than the above 2 width.
  4. In Paragraph 3, The above first width is a battery module larger than the above second width.
  5. In Paragraph 3, A battery module in which the width of the firsta above is larger than the width of the seconda above.
  6. In Article 1, The above-mentioned first connecting tab has a first length, A battery module in which the length of the first short section is 5% to 10% of the first length.
  7. In Paragraph 6, The above second connecting tab has a second length, A battery module in which the length of the second short section is 5% to 10% of the second length.
  8. In Article 7, The above first length and the above second length are different battery modules.
  9. In Article 1, A battery module in which at least one of the plurality of second connection tabs includes a second short section.
  10. In Article 1, The above-mentioned first connecting tab has a first thickness, The above-mentioned first section has a thickness of 1a, The above 1a thickness is a battery module smaller than the above 1 thickness.
  11. In Article 10, The above second connecting tab has a second thickness, The above second section has a thickness of 2a, The above 2a thickness is a battery module smaller than the above 2 thickness.
  12. In Paragraph 11, The first thickness is greater than the second thickness, and A battery module with a thickness greater than the thickness of the firsta above and the thickness of the seconda above.
  13. In Article 10, The thickness of the firsta above changes while extending the length direction of the first connecting tab, and The above 2a thickness is a battery module that changes while extending the length direction of the above 2 connection tab.
  14. In Article 1, A battery module in which at least one of the first connection tab and the second connection tab comprises a plurality of short-circuit portions.
  15. In Paragraph 14, The width or thickness of the above plurality of short-circuit sections is different from other battery modules.
  16. A plurality of secondary batteries including terminal portions and arranged in one direction; A plurality of first connection tabs connecting the above secondary battery and an external power circuit; A plurality of second connection tabs connecting the plurality of secondary batteries; and It includes a housing that secures the plurality of secondary batteries mentioned above, At least one of the first connection tab and the second connection tab includes a resistance variable region, and The electrical resistance of the above variable resistance region is different from the electrical resistance of other regions of the battery module.
  17. In Paragraph 16, At least one of the first connection tab and the second connection tab includes a first region and a second region, and The electrical resistance of the first region and the second region is different, and The above first region is a battery module including a resistance variable region.
  18. In Paragraph 17, The above-mentioned first region includes a first metal and a second metal, and The above second region includes a first metal. A battery module comprising at least one of aluminum, copper, nickel, and alloys thereof, wherein the first metal and the second metal are said to be aluminum, copper, nickel, and alloys thereof.
  19. In Paragraph 17, The above-mentioned first region is a battery module including a 1-1 region and a 1-2 region.
  20. In Paragraph 19, A battery module in which the length of the above 1-1 region is longer than the length of the above 1-2 region.

Description

Battery Module The embodiment relates to a battery module. Unlike primary batteries, which cannot be recharged, secondary batteries are batteries capable of both charging and discharging. Low-capacity secondary batteries are used in small portable electronic devices such as smartphones, feature phones, laptop computers, digital cameras, and camcorders, while high-capacity secondary batteries are widely used as power sources for motor drive systems and power storage batteries in hybrid and electric vehicles. Such secondary batteries include an electrode assembly consisting of a positive electrode and a negative electrode, a case housing the assembly, and electrode terminals connected to the electrode assembly. The information described above disclosed in the background technology of this invention is intended only to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. FIG. 1 is a perspective view of a battery module according to an embodiment. FIG. 2 is a top view of a connection tab of a battery module according to an embodiment. FIG. 3 is a top view of the connection tab of the battery module in another embodiment. Figure 4 is a cross-sectional view taken along the AA' region of Figure 3. Figure 5 is a cross-sectional view taken along the BB' region of Figure 3. Figure 6 is another cross-sectional view cut along the AA' region of Figure 3. Figure 7 is another cross-sectional view cut along the BB' region of Figure 3. FIG. 8 is a top view of a connection tab of a battery module according to another embodiment. FIG. 9 is a top view of a connection tab of a battery module according to another embodiment. FIG. 10 is a top view of a connection tab of a battery module according to another embodiment. Figure 11 is a cross-sectional view taken along the CC' region of Figure 10. FIG. 12 is a cross-sectional view taken along the DD' region of FIG. 10. FIG. 13 is a top view of a connection tab of a battery module according to another embodiment. FIG. 14 is another cross-sectional view cut along the CC' region of FIG. 10. Figures 15 and 16 are different cross-sectional views cut along the AA' region of Figure 3. FIGS. 17 to 19 are other cross-sectional views cut along the CC' region of FIG. 10. FIGS. 20 to 22 are drawings illustrating secondary batteries of various shapes to which the embodiments are applied. FIGS. 23 and FIGS. 24 are perspective views of a battery pack including a secondary battery according to an embodiment. FIGS. 25 and FIGS. 26 are a perspective view and a side view of a vehicle including a battery pack according to an embodiment. Preferred embodiments of the present disclosure will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present disclosure, based on the principle that the inventor may appropriately define the concept of the terms to best describe his invention. Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely some of the most preferred embodiments of the present disclosure and do not represent all of the technical spirit of the present disclosure; therefore, it should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Furthermore, as used in this specification, "comprise", "include" and/or "comprising", "including" specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and/or groups thereof, and do not exclude the presence or addition of one or more other features, numbers, actions, parts, elements, and/or groups. Additionally, when describing embodiments of the present disclosure, "may" or "may be" may include "one or more embodiments of the present disclosure." Additionally, to aid in understanding the invention, the attached drawings are not drawn to actual scale, and the dimensions of some components may be exaggerated. Furthermore, the same reference numerals may be assigned to identical components in different embodiments. The statement that two subjects of comparison are 'identical' means that they are 'substantially identical.' Therefore, substantial identity may include deviations considered low in the industry, for example, deviations within 5%. A