The utility model discloses a lithium ion battery electrode ear shaping and gluing structure, which comprises a battery core body, with side glue attached to both sides of the battery core body, a bottom glue connected to the bottom of the battery core body, a positive ear and a negative ear connected to the top of the battery core body, and a positive and negative ear connected to the positive and negative ears by ultrasonic welding. Pole ear; the welding part and the upper part of the battery core body are covered with the pole ear adhesive, and then the positive ear and the negative ear are folded upward, and the welding part together with the positive ear and the negative ear are folded upward again. The utility model separates the metal burrs produced by welding and shearing from the diaphragm by gluing the welding parts, prevents the top diaphragm of the coil core from being punctured by the metal burrs, and improves the safety performance of the battery; folding the welding parts to the top of the coil core can improve the utilization of the internal space of the battery and the energy density of the battery, and has obvious effect of simple operation.
【技术实现步骤摘要】
一种锂离子电池极耳整形、贴胶结构
本技术涉及锂离子电池
,尤其涉及到一种锂离子电池极耳整形、贴胶结构。
技术介绍
目前叠片式锂离子电池主要有Z字型叠片和卷绕式叠片,Z字型叠片主要是先将正负极极片分别通过裁切、冲型,形成具有假极耳的单片极片,其隔膜呈Z字型叠绕,正负极极片依次交叉叠放,中间由隔膜隔开。叠片后正负极假极耳与正负极极耳通过焊接的方式整合在一起,同时使顶部预留空间加大,电池内部空间利用率降低。
技术实现思路
本技术的目的在于克服上述现有技术中的不足之处而提供一种结构简单,实用的锂离子电池极耳整形、贴胶结构。本技术是通过如下方式实现的:一种锂离子电池极耳整形、贴胶结构,其特征在于:包括电池卷芯本体,所述电池卷芯本体的左右两侧分别贴设有侧边胶;所述电池卷芯本体底部连接有底部胶;所述电池卷芯本体的顶部连接有正极耳和负极耳,所述正极耳和负极耳上通过超声焊接连接有正极假极耳和负极假极耳;所述正极假极耳和负极假极耳分别与正极耳和负极耳的连接处形成焊接部位;所述焊接部位和电池卷芯本体上部采用极耳贴胶包覆贴住,而后将正极耳和负极耳进行向上90度翻折,使正极耳和负极耳与电池卷 ...
【技术保护点】
1.一种锂离子电池极耳整形、贴胶结构,其特征在于:包括电池卷芯本体(3),所述电池卷芯本体(3)的左右两侧分别贴设有侧边胶(4);所述电池卷芯本体(3)底部连接有底部胶(5);所述电池卷芯本体(3)的顶部连接有正极耳(1)和负极耳(2),所述正极耳(1)和负极耳(2)上通过超声焊接连接有正极假极耳(7)和负极假极耳(8);所述正极假极耳(7)和负极假极耳(8)分别与正极耳(1)和负极耳(2)的连接处形成焊接部位(6);所述焊接部位(6)和电池卷芯本体(3)上部采用极耳贴胶(9)包覆贴住,而后将正极耳(1)和负极耳(2)进行向上90度翻折,使正极耳(1)和负极耳(2)与电池卷 ...
【技术特征摘要】
1.一种锂离子电池极耳整形、贴胶结构,其特征在于:包括电池卷芯本体(3),所述电池卷芯本体(3)的左右两侧分别贴设有侧边胶(4);所述电池卷芯本体(3)底部连接有底部胶(5);所述电池卷芯本体(3)的顶部连接有正极耳(1)和负极耳(2),所述正极耳(1)和负极耳(2)上通过超声焊接连接有正极假极耳(7)和负极假极耳(8);所述正极假极耳(7)和负极假极耳(8)分别与正极耳(1)和负极耳(2)的连接处形成焊...
【专利技术属性】
技术研发人员:叶建威,庄宗标,陈宗勇,吴琼,吕冰冰,
申请(专利权)人:易佰特新能源科技有限公司,
类型:新型
国别省市:福建,35
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。