Battery module assembly of improved reliability and battery pack employed with the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-002/10
H01M-002/20
B60L-011/18
H01M-002/02
출원번호
US-0243711
(2014-04-02)
등록번호
US-9735403
(2017-08-15)
우선권정보
KR-10-2011-0134170 (2011-12-14)
발명자
/ 주소
Lee, BumHyun
Choi, JiYoung
Kang, DalMo
Seong, JunYeob
출원인 / 주소
LG CHEM, LTD.
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
Disclosed herein is a battery module assembly including (a) two or more battery modules having cell units, each of which includes one or more battery cells, connected in parallel to one another, (b) a pair of an upper case and a lower case to surround an upper part and a lower part of the battery mo
Disclosed herein is a battery module assembly including (a) two or more battery modules having cell units, each of which includes one or more battery cells, connected in parallel to one another, (b) a pair of an upper case and a lower case to surround an upper part and a lower part of the battery modules in a state in which the battery modules are erected on their sides, (c) a bus bar assembly disposed at a front of the battery modules to electrically connect the battery modules to one another in parallel, and (d) a fastening hole formed at a front of the upper case and/or a front of the lower case to position or fix the battery module assembly.
대표청구항▼
1. A battery module assembly comprising: (a) two or more battery modules having cell units, each of which comprises one or more battery cells having electrode terminals, connected in parallel to one another in a first direction;(b) an upper case and a lower case to surround an upper part and a lower
1. A battery module assembly comprising: (a) two or more battery modules having cell units, each of which comprises one or more battery cells having electrode terminals, connected in parallel to one another in a first direction;(b) an upper case and a lower case to surround an upper part and a lower part of the battery modules in a state in which the battery modules are erected on their sides;(c) a bus bar assembly disposed at a front of the battery modules to electrically connect the battery modules to one another in parallel; and(d) a fastening hole formed at a front of the upper case and/or a front of the lower case to position or fix the battery module assembly,wherein the bus bar assembly comprises:a cover plate formed of an electrically insulative material, the cover plate being fixed to the front of the battery modules;a first body part having a first L-shaped section, a first external input and output terminal formed at one side of the first L-shaped section and two or more bus bars extending from another side of the first L-shaped section;each of the two or more bus bars having first and second ends, the first ends connected to the L-shaped section, and the second ends of the two or more bus bars being free ends that are spaced from one another; anda second body part having a second L-shaped section, a second external input and output terminal formed at one side of the second L-shaped section and two or more bus bars extending from another side of the second L-shaped section, each bus bar having a first end connected to the first L-shaped section, the second ends of the two or more bus bars being free ends that are spaced from one another, wherein the body parts are spaced from each other in the first direction,wherein the cover plate extends from the upper case and the lower case in a vertical direction and from a first side of the battery case to a second side of the battery case in a horizontal direction,wherein the cover plate has openings next to the two or more bus bars extending from the first body part and the second body part, andwherein the electrode terminals of the battery cells extend through the openings in the cover plate. 2. The battery module assembly according to claim 1, wherein the fastening hole is configured to have a structure in which a fastening thread is formed at an inner circumference of the fastening hole. 3. The battery module assembly according to claim 1, wherein a depression is further formed at a rear of the upper case and/or a rear of the lower case such that a bar type member to position or fix the battery module assembly can be coupled in the depression. 4. The battery module assembly according to claim 3, wherein the depression is formed at the rear of the upper case and/or the rear of the lower case and extends in the first direction. 5. The battery module assembly according to claim 1, wherein the battery modules have cell units, each of which comprises two or more battery cells, connected in parallel to one another. 6. The battery module assembly according to claim 1, wherein each of the cell units comprises an even number of battery cells. 7. The battery module assembly according to claim 1, wherein electrode terminals of the cell units are electrically connected to each other via bus bars. 8. The battery module assembly according to claim 1, wherein the body parts are provided with steps to prevent a short circuit between the external input and output terminals. 9. The battery module assembly according to claim 1, wherein each of the battery cells is configured such that an electrode assembly of a cathode/separator/anode structure is mounted in a battery case formed of a laminate sheet comprising a resin layer and a metal layer and that a cathode terminal and an anode terminal protrude from opposite ends of the battery case. 10. The battery module assembly according to claim 1, wherein insulating tape is attached to an outer circumference of each of the battery cells excluding electrode terminals of each of the battery cells. 11. The battery module assembly according to claim 1, wherein each of the cell units is configured to have a structure in which the battery cells are mounted between metal housings in a state in which the battery cells are in contact with each other. 12. The battery module assembly according to claim 11, wherein the metal housings are coupled to each other to surround the entirety of an outside of a battery cell stack constituted by two or more battery cells excluding cathode and anode terminals of the battery cells. 13. The battery module assembly according to claim 11, wherein each of the metal housings has an internal structure corresponding to an outside shape of a battery cell stack, and the metal housings are coupled to each other in an assembly fastening fashion. 14. The battery module assembly according to claim 11, wherein the metal housings are configured to have a male and female fastening structure in which section coupling parts of the metal housings are engaged with each other by elastic coupling when the metal housings are pushed toward each other in a state in which the metal housings are in contact with each other such that the metal housings face each other. 15. The battery module assembly according to claim 11, wherein each of the metal housings is made of a metal sheet. 16. A battery pack configured to have a structure comprising two or more battery module assemblies according to claim 1 based on output and capacity. 17. A device comprising a battery pack according to claim 16. 18. The battery module of claim 1, wherein the two or more bus bars extend in the first direction, and wherein the external input and output terminal extends in a second direction, the second direction being perpendicular to the first direction. 19. A battery module assembly comprising: two battery modules having cell units connected in parallel to one another in a first direction;an upper case and a lower case surrounding an upper part and a lower part of the battery modules;a bus bar assembly disposed at a front of the battery modules to electrically connect the battery modules to one another in parallel; anda fastening hole formed at a front of the upper case and/or a front of the lower case to position or fix the battery module assembly,wherein the bus bar assembly comprises: a cover plate formed of an electrically insulative material, the cover plate being fixed to the front of the battery modules;an L-shaped body part, the L-shaped body part having a first section having a first edge and a second section having a first edge connected to the first edge of the first section, the second section being in a different plane than the first section;an external input and output terminal extending outwardly from the first section; andtwo or more bus bars extending from the second section, each bus bar having a first end connected to a second edge of the second section, the second ends of the two or more bus bars being free ends that are spaced from one another,wherein the cover plate extends from the upper case and the lower case in a vertical direction and from a first side of the battery case to a second side of the battery case in a horizontal direction,wherein the cover plate has openings next to the two or more bus bars extending from the first body part and the second body part, and wherein the electrode terminals of the battery cells extend through the openings in the cover plate. 20. The battery module of claim 19, wherein the external input and output terminal and the second section extend in opposite directions from the first section in a first direction and the second section extends from the first section, and wherein the two or more bus bars and the first section extend in opposite directions from the second section.
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이 특허에 인용된 특허 (1)
Fauteux Denis G. ; Rounds ; III Robert ; Farina Michael, Three dimensional free form battery apparatus.
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