阅读说明：本技术 电化学装置和电子装置 (Electrochemical device and electronic device ) 是由 江静 于 2020-03-24 设计创作，主要内容包括：一种电化学装置,包括电极组件、封装膜和第一极耳,第一极耳与电极组件电连接,封装膜包括位于第一极耳两侧的第一封装膜和第二封装膜,第一封装膜包括第一封印区,第二封装膜包括第二封印区,第一封印区和第二封印区相结合封装电极组件。其中,第一封印区包括第一区域和第二区域,第一区域覆盖第一极耳在第一封印区的投影,第二区域与第一区域相连接,第二区域的宽度小于第一区域的宽度。本申请还提供一种包括所述电化学装置的电子装置。本申请通过设置极耳封装位置和非极耳封装位置的封装宽度不同,进而在极耳封装位置附近设置溢胶容纳空间,改善极耳位置封装溢胶处问题,提高极耳封装位置的封装可靠性,提高电化学装置的安全性能和使用寿命。(An electrochemical device comprises an electrode assembly, an encapsulation film and a first tab, wherein the first tab is electrically connected with the electrode assembly, the encapsulation film comprises a first encapsulation film and a second encapsulation film which are positioned on two sides of the first tab, the first encapsulation film comprises a first sealing area, the second encapsulation film comprises a second sealing area, and the first sealing area and the second sealing area are combined to encapsulate the electrode assembly. The first sealing area comprises a first area and a second area, the first area covers the projection of the first tab in the first sealing area, the second area is connected with the first area, and the width of the second area is smaller than that of the first area. The present application also provides an electronic device including the electrochemical device. This application is different through the encapsulation width that sets up utmost point ear encapsulation position and non-utmost point ear encapsulation position, and then sets up near utmost point ear encapsulation position and overflow and glue accommodation space, improves utmost point ear position encapsulation and overflows gluey department problem, improves utmost point ear encapsulation position's encapsulation reliability, improves electrochemical device's security performance and life.)

An electrochemical device comprising an electrode assembly, an encapsulation film and a first tab, the first tab being electrically connected with the electrode assembly, the encapsulation film comprising a first encapsulation film and a second encapsulation film on both sides of the first tab, the first encapsulation film comprising a first sealing region, the second encapsulation film comprising a second sealing region, the first sealing region and the second sealing region combining to encapsulate the electrode assembly, wherein,

the first sealing area comprises a first area and a second area, the first area covers the projection of the first tab in the first sealing area, the second area is connected with the first area, and the width of the second area is smaller than that of the first area.

The electrochemical device according to claim 1, wherein the width of the second region is 40 to 95% of the width of the first region.

The electrochemical device according to claim 1, wherein the first encapsulation film further comprises a first non-encapsulation region including a first connection portion and a second connection portion, the first connection portion connecting the first encapsulation region and the second connection portion, and an angle of the first connection portion to the first encapsulation region in the encapsulation film thickness direction is greater than 0 ° and equal to or less than 90 °.

The electrochemical device according to claim 3, wherein the second encapsulation film further comprises a second non-encapsulation region including a third connection portion and a fourth connection portion, the third connection portion connecting the second encapsulation region and the fourth connection portion, and an angle of the third connection portion to the second encapsulation region in the encapsulation film thickness direction is greater than 0 ° and equal to or less than 90 °.

The electrochemical device of claim 4, wherein the second region in combination with the second seal region has a thickness T₂(mm), the distance between the second connection portion and the fourth connection portion is D (mm), then T₂<D≤10T ₂。

The electrochemical device of claim 5, wherein the first region and the second seal region form a thickness T₁(mm), then T₂＜T ₁≤4T ₂。

The electrochemical device of claim 1, wherein an encapsulation pull force between the first and second encapsulation areas is between 1N/mm and 10N/mm.

The electrochemical device according to claim 1, wherein the electrochemical device further comprises a second tab electrically connected to the electrode assembly, the second tab being located on the same side of the electrode assembly as the first tab,

the first sealing area further comprises a third area, the third area covers the projection of the second tab in the first sealing area, the second area is connected with the third area, and the third area is equal to the first area in width.

The electrochemical device according to claim 1, wherein the electrochemical device further comprises a second tab electrically connected to the electrode assembly, the second tab being located on a different side of the electrode assembly from the first tab,

the first packaging film further comprises a third packaging area, the third packaging area comprises a fourth area and a fifth area, the fourth area covers the projection of the second pole ear on the third packaging area, the fifth area is connected with the fourth area, and the width of the fifth area is smaller than that of the fourth area.

An electronic device comprising the electrochemical device according to any one of claims 1 to 9.