含碳聚合层薄膜电池以及电池组
By using a double-sided conductive carbon polymer layer as the current collector layer in thin-film batteries, the flexibility and aging problems in existing connection processes are solved, achieving highly flexible and stable series-parallel connection of thin-film batteries, thus improving the performance and manufacturing efficiency of battery packs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZINERGY SHENZHEN LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
In existing thin-film battery connection processes, the low flexibility of the metal substrate affects the overall flexibility, high-temperature thermal effects damage the thin-film material, and conductive adhesive bonding is prone to aging, leading to a decrease in conductivity and posing a risk of failure.
A carbon polymer layer with double-sided conductivity is used as the current collector layer for series or parallel connection of thin-film batteries. The carbon polymer layer has high flexibility and stability, avoiding aging. The connection strength and reliability are improved by connecting the carbon fiber mesh structure and the hot melt polymer.
This technology enables highly flexible connections in thin-film batteries, reduces the risk of failure, improves the electrical performance and manufacturing efficiency of battery packs, and lowers manufacturing costs.
Smart Images
Figure CN224520127U_ABST
Abstract
Claims
1. A carbonaceous polymeric layer thin film battery, characterized by, The thin-film battery includes a current collector layer and an electrode layer connected together, wherein the current collector layer is configured as a carbon polymer layer; wherein the carbon polymer layer has double-sided conductive properties, and at least two thin-film batteries are connected in series or in parallel through the carbon polymer layer.
2. The carbonaceous polymeric layer-containing thin film battery of claim 1, wherein: The thin-film battery includes an insulating substrate, and the carbon polymer layer is disposed on one side or the inner side of the insulating substrate to form a composite layer; and / or, the insulating substrate has through-holes, and the carbon polymer layer is aligned with the through-holes.
3. The carbon -containing poly layer thin film battery of claim 2, wherein: The carbon polymer layer includes a hot-melt polymer, which is used to heat-seal the carbon polymer layer to the insulating substrate. And / or, the composite layer further includes a carbon paste layer disposed at the through-hole portion; the carbon polymer layer is connected to the electrode layer through the carbon paste layer.
4. The carbonaceous polymeric layer-containing thin film battery of claim 2, wherein: The composite layer includes a carbon fiber mesh structure formed by crisscrossing first carbon fibers, and the carbon polymer layer is provided at each intersection of the carbon fiber mesh structure. Furthermore, the insulating substrate is provided with a plurality of through holes, and the through holes are provided in a one-to-one correspondence with the carbon polymer layer.
5. The carbonaceous polymeric layer-containing thin film battery of claim 2, wherein: When the thickness of the electrode layer is greater than the thickness of the insulating substrate, a portion of the electrode layer is disposed in the through-hole and connected to the carbon polymer layer.
6. The carbon -containing polymeric layer thin film battery of claim 5, wherein: A protective conductive layer is disposed between the electrode layer and the carbon polymer layer, and the protective conductive layer is used to isolate the electrolyte.
7. The carbon -containing polymeric layer thin film battery of claim 1, wherein: When the thin-film battery is configured as a planar structure, the two carbon polymer layers serving as the current collector layer are connected by a second carbon fiber, and the second carbon fiber is die-cut before printing the electrolyte separator layer.
8. A battery pack characterized by: The battery pack includes a carbon-containing polymer layer thin-film battery as described in any one of claims 1 to 6.
9. The battery pack of claim 8, wherein: When two thin-film batteries are connected in series, the carbon polymer layer is disposed between the positive electrode layer of one thin-film battery and the negative electrode layer of the other thin-film battery.
10. The battery pack as claimed in claim 8, characterized in that: The thin-film battery includes a composite layer, and at least two thin-film batteries are connected in series or in parallel through the composite layer.