Lithium Ion Battery With Semiconductor Anode And Lid Interconnection
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Solution Overview
Problem
Current lithium ion batteries face challenges in meeting increasing demands for capacity and performance while being manufactured in a simple manner, particularly in integrating semiconductor materials for improved energy storage and compact size.
Innovation Solution
A lithium ion battery design featuring a substrate with a semiconductor anode and a cathode on a lid, connected via an electrical interconnection element within a cavity filled with electrolyte, allowing for enhanced lithium insertion capacity and integration with integrated circuit elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional lithium ion battery designs are used, then manufacturing simplicity is maintained, but energy storage capacity and performance fail to meet increasing demands
Solution Approach 1:
The battery is divided into distinct functional layers including a substrate layer with semiconductor anode, an electrolyte layer, and a lid with cathode. This segmentation allows each layer to be optimized independently for performance while maintaining compatibility with existing semiconductor manufacturing processes
Solution Approach 2:
The invention uses composite structures combining semiconductor materials (silicon anode) with traditional battery components (electrolyte, cathode materials). This composite approach enables higher energy density while leveraging established semiconductor fabrication techniques for manufacturing
2Quantity of substance
If semiconductor materials are integrated into the battery, then energy storage capacity improves, but device complexity increases
Solution Approach 1:
The substrate serves multiple functions: it acts as both the structural foundation of the battery and the current collector for the semiconductor anode. The lid similarly serves as both a protective cover and the current collector for the cathode, reducing the need for separate components
Solution Approach 2:
The invention merges the substrate and anode current collector into a single integrated component, as does the lid and cathode current collector. This merging simplifies the overall structure while enabling high-capacity semiconductor anodes
3Quantity of substance
If silicon is used as anode material, then lithium insertion capacity increases, but mechanical stability challenges arise
Solution Approach 1:
The substrate is designed as a thin, flexible layer that can accommodate the volume expansion of silicon during lithium insertion. This thin-film approach prevents mechanical failure while maintaining electrical conductivity and structural integrity
Solution Approach 2:
The substrate parameters (thickness, material composition, mechanical properties) are specifically optimized to match the expansion characteristics of silicon anodes. This parameter tuning enables the substrate to flexibly accommodate silicon volume changes without compromising mechanical stability
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 design improves energy storage capacity and enables the integration of lithium ion batteries with semiconductor materials, facilitating miniaturization and improved performance by using silicon as the anode material and fluorine-free electrolytes, enhancing mechanical stability and ion transportation.
Implementation Method 1
an electrical interconnection element in the lid, the electrical interconnection element providing an electrical connection between a first main surface and a second main surface of the lid
Implementation Method 2
an electrolyte in the cavity, an anode at the first substrate, the anode comprising a component made of a semiconductor material
Data Source
AI summary
A lithium ion battery includes a first substrate having a first main surface, and a lid including an insulating material. The lid is attached to the first main surface of the first substrate, and a cavity is defined between the first substrate and the lid. The lithium ion battery further includes an electrical interconnection element in the lid, the electrical interconnection element providing an electrical connection between a first main surface and a second main surface of the lid. The lithium ion battery further includes an electrolyte in the cavity, an anode at the first substrate, the anode including a component made of a semiconductor material, and a cathode at the lid.