# US 2014/0193669 A1 · Battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193669 A1 - Document ID: US20140193669A1 - Status: Published application - Kind: A1 - Application number: 13/870,573 - Filed: 2013-04-25 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Hankyu Park; Inkyu Park - Web page: https://patentgrep.com/patent/US20140193669A1 ## CPC - H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries} - H01M 50/211: adapted for pouch cells - H01M 50/227: Organic material - H01M 50/242: adapted for protecting batteries against vibrations, collision impact or swelling - H01M 50/233: characterised by physical properties of casings or racks, e.g. dimensions - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A battery pack including a case, which is improved by preventing deformation, such as warp, from occurring to the case, is provided. The battery pack includes one or more batteries, a protective circuit module (PCM) electrically connected to the batteries, a case accommodating the batteries and the PCM, and one or more warp preventing portions inserted into a frame forming the case and formed along the lengthwise direction of the case. Accordingly, it is possible to prevent the case of the battery pack from being warped or distorted. ## Claims ### Claim 1 A battery pack, comprising: one or more batteries; a protective circuit module (PCM) electrically connected to the batteries; a case accommodating the batteries and the PCM; and one or more warp preventing portions inserted into a resin frame forming the case and formed along a lengthwise direction of the case. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein each of the warp preventing portions includes a main body having a shape of a bar extending along the lengthwise direction and a hemming part formed by bending lengthwise opposite ends of the main body. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein each of the warp preventing portions are positioned at a center of a bottom portion of the case. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein the warp preventing portions are main warp preventing portions and further include sub warp preventing portions positioned at opposite ends of the bottom portion of the case, and each of the sub warp preventing portions includes a sub body having a shape of a bar and a bent portion having one lengthwise end of the sub body bent. ### Claim 5 (depends on 1) The battery pack of claim 1, wherein each of the warp preventing portions is formed of a pipe compressed into a bar. ### Claim 6 (depends on 5) The battery pack of claim 5, wherein each of the warp preventing portions are positioned at a center of a bottom portion of the case. ### Claim 7 (depends on 6) The battery pack of claim 6, wherein the warp preventing portions are main warp preventing portions and further include sub warp preventing portions positioned at opposite ends of the bottom portion of the case, and each of the sub warp preventing portions includes a sub body having a shape of a bar and a bent portion having one lengthwise end of the sub body bent. ### Claim 8 (depends on 1) The battery pack of claim 1, wherein the warp preventing portions include a main warp preventing portion positioned at a center of a bottom portion of the case, and sub warp preventing portions positioned at opposite ends of the bottom portion of the case. ### Claim 9 (depends on 8) The battery pack of claim 8, wherein the main warp preventing portion includes a body having a shape of a bar and a hemming part formed by bending lengthwise opposite ends of the body, and each of the sub warp preventing portions is formed from a pipe compressed into a bar. ### Claim 10 (depends on 8) The battery pack of claim 8, wherein the main warp preventing portion is formed of a pipe compressed into a bar and each of the sub warp preventing portions includes a body having a shape of a bar and a hemming part formed by bending lengthwise opposite ends of the body. ### Claim 11 (depends on 1) The battery pack of claim 1, wherein the warp preventing portions are positioned at opposite ends of the bottom portion of the case. ### Claim 12 (depends on 11) The battery pack of claim 11, wherein each of the warp preventing portions includes a body having a shape of a bar and a hemming part formed by bending lengthwise opposite ends of the body. ### Claim 13 (depends on 11) The battery pack of claim 11, wherein each of the warp preventing portions is formed of a pipe compressed into a bar. ### Claim 14 (depends on 11) The battery pack of claim 11, wherein the warp preventing portions include a first warp preventing portion and a second warp preventing portion, the first warp preventing portion includes a body having a shape of a bar and a hemming part formed by bending lengthwise opposite ends of the body, and the second warp preventing portion is formed of a pipe compressed into a bar. ### Claim 15 (depends on 11) The battery pack of claim 11, wherein each of the warp preventing portions includes a body having a shape of a bar and a hemming part formed by bending lengthwise one end of the body. ### Claim 16 (depends on 1) The battery pack of claim 1, wherein the warp preventing portions have a thickness in a range of 0.4 to 0.5 millimeter (or mm). ### Claim 17 (depends on 1) The battery pack of claim 1, wherein the warp preventing portions include steel or stainless steel material. ### Claim 18 A case of a battery pack, comprising: a case body accommodating one or more batteries; and one or more warp preventing portions inserted into a bottom portion of the case body and formed along a lengthwise direction of the case body.