In-Situ Coin Cell Battery with X-Ray Window
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Solution Overview
Problem
Lithium ion batteries face challenges in achieving structural stability during continuous lithium separation and binding, limiting the commercialization of anode materials with high capacity and energy density.
Innovation Solution
The development of in-situ analyzed coin cell batteries with X-ray analysis capabilities, which include a case, cap, energy storage members, and defined holes for X-ray irradiation, allowing for real-time analysis of electrode state changes during charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If in-situ X-ray analysis is implemented in coin cell batteries, then measurement precision of electrode state changes is improved, but device complexity increases due to the need for X-ray transparent windows and specialized cell structure
Solution Approach 1:
The coin cell is divided into separate functional components: a standard battery assembly and a separate X-ray transparent window module. The window can be positioned in the case or cap without requiring complex integration into the core battery structure, allowing X-ray analysis while maintaining battery functionality.
Solution Approach 2:
An X-ray transparent window acts as an intermediary element that allows X-ray penetration for analysis without interfering with the battery's electrical or chemical functions. This mediator enables measurement precision improvement while adding minimal structural complexity.
2Adaptability or versatility
If holes are defined in case or cap for X-ray irradiation, then X-ray analysis capability is improved, but manufacturing precision requirements increase
Solution Approach 1:
Instead of requiring precise hole alignment through both case and cap, the design allows the X-ray window to be positioned in only one component. This partial implementation reduces manufacturing precision requirements while still providing adequate X-ray access for analysis.
3Reliability
If in-situ analysis is performed during charging and discharging, then reliability of analysis results is improved, but duration of analysis process increases
Solution Approach 1:
The in-situ X-ray analysis enables continuous monitoring of electrode state changes throughout the charging and discharging cycles. This continuous action provides reliable data on structural stability and material transformations without requiring interruption of the battery operation, balancing reliability with reasonable analysis duration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach provides reliable analysis results that can be applied to actual battery use, enhancing the stability and performance of lithium ion batteries by monitoring electrode materials in real-time.
Implementation Method 1
A hole through which an X-ray is irradiated is defined in at least one of the case and the cap
Data Source
AI summary
An in-situ X-ray analyzed coin cell battery includes a case, a cap combined with the case, and an energy storage member provided between the case and the cap. A hole through which an X-ray is irradiated is defined in at least one of the case and the cap.