Photoanode Solar Battery Integration to Cut Storage Losses

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Solution Overview

Problem

Traditional solar photovoltaic systems face inefficiencies due to separate components for energy generation and storage, leading to significant energy losses and complex system architectures, which are further complicated by the need for battery management and energy management systems.

Innovation Solution

A rechargeable electrochemical energy storage device, such as a metal ion solar battery (MISB) or proton solar battery (PSB), is developed, integrating solar energy generation and storage capabilities within a single device using a photoanode made of materials like TiO2 or other photocatalysts, with a dual-functioning photoelectrode and charge recombination blocking layer, allowing for energy storage and power release on demand, even at night.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate solar photovoltaic panels and battery systems are connected to achieve energy generation and storage, then both solar production and energy storage capabilities are provided, but significant energy losses occur and system architecture becomes complex

Engineering Contradiction:
Improveenergy generation and storage capabilityVSAvoidenergy loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent combines solar photovoltaic energy generation and battery energy storage into a single integrated device. The solar cell layer is directly coupled with the battery electrodes, eliminating the need for separate systems and external connections. This integration reduces energy losses that occur in traditional separate systems while providing both energy generation and storage capabilities in one unified structure.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If separate solar photovoltaic panels and battery systems are connected to achieve energy generation and storage, then both solar production and energy storage capabilities are provided, but system architecture becomes complex requiring battery management system and energy management system

Engineering Contradiction:
Improveenergy generation and storage capabilityVSAvoidsystem architecture complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges solar photovoltaic energy generation and battery energy storage into a single integrated device. The solar cell layer is directly coupled with the battery electrodes, eliminating the need for separate systems and external connections. This integration reduces energy losses that occur in traditional separate systems while providing both energy generation and storage capabilities in one unified structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated solar battery device performs multiple functions simultaneously: it generates electricity through the solar cell layer and stores energy through the battery electrodes. The device can operate in multiple modes including solar charging, grid charging, power delivery to loads, and discharge during nighttime or cloudy conditions, eliminating the need for separate battery management and energy management systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If solar photovoltaic systems are used for energy generation, then renewable energy is provided, but energy generation is limited by diurnal cycle and weather conditions

Engineering Contradiction:
Improverenewable energy generationVSAvoidenergy generation reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent incorporates energy storage capability directly into the solar device, allowing it to accumulate energy during sunny periods for later use. The battery component stores excess solar energy generated during the day, enabling the system to provide power during nighttime or cloudy conditions when solar generation is limited or unavailable, thereby improving reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent combines solar photovoltaic energy generation and battery energy storage into a single integrated device. The solar cell layer is directly coupled with the battery electrodes, eliminating the need for separate systems and external connections. This integration reduces energy losses that occur in traditional separate systems while providing both energy generation and storage capabilities in one unified structure.

Inventive Principle:
Principle #5Merging (Combining)

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

The integrated system simplifies architecture, minimizes energy losses, and provides reliable, dispatchable renewable energy by enabling simultaneous solar energy generation and storage, with enhanced charging and discharging capabilities under both light and external power sources.

Implementation Method 1

Solar photovoltaic (PV) cells convert solar radiant energy into electricity

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Implementation Method 2

a photoanode made of a material selected from a group consisting of TiO2 or other photocatalyst materials

Methodology Applied
Scientific EffectPhotocatalysis: Catalysis

Data Source

PatentUS20230378572A1Photo rechargeable electrochemical energy storage device
Publication Date: 2023.11.23 RGT UNIV OF CALIFORNIA
  • US20230378572A1 patent drawing
  • US20230378572A1 patent drawing
  • US20230378572A1 patent drawing

AI summary

A photo rechargeable electrochemical energy storage device, a power generation device, and a method for fabricating the photo rechargeable electrochemical energy storage device in a mostly unrestricted atmospheric environment are disclosed. The power generation device including a rechargeable electrochemical energy storage device including a photoanode arranged beneath a transparent electrode, the photoanode comprising an oxide of titanium; and a micro-power conversion controller configured to control delivery of power under load, and recharge the rechargeable electrochemical energy storage device when not under rated load and when the transparent electrode is exposed to sufficient light and/or grid power is available.