Periodate Battery Multi-Electron Cathode Capacity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional batteries, particularly lithium-ion batteries, face limitations in energy density, safety issues such as overheating and explosion, and are not suitable for conformal or wearable technology due to their size, weight, and low specific capacities, which restricts their application in power-hungry devices and remote wireless networks.
Innovation Solution
The development of a high-capacity periodate battery with a 3D-printed casing and replaceable flexible electrodes, utilizing an iron(III) periodate complex cathode and zinc anode, along with carbon nanotubes and a polytetrafluoroethylene coating, which enables a multi-electron process enhancing cathode specific capacity and using an ion-exchange membrane dual-electrolyte design for improved safety and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional lithium-ion batteries are used, then high energy density is achieved, but safety issues such as overheating and explosion occur
Solution Approach 1:
The patent changes the chemical parameters of the battery system by using aqueous electrolyte instead of organic electrolyte, and employing high-oxidation-state materials (I(VII), Mn(IV)) instead of conventional cathode materials. This fundamental parameter change enables achieving high energy density while improving safety by eliminating the flammability issue inherent in organic electrolyte-based lithium-ion batteries
Solution Approach 2:
The patent employs composite material strategies by combining high-oxidation-state materials (periodate, iodate, permanganate) with conductive additives and stabilizing agents. These composite cathode materials achieve both high energy density through multi-electron transfer reactions and improved safety through stable aqueous electrolyte systems
2Power
If conventional lithium-ion batteries are used, then high power output is achieved, but size and weight increase
Solution Approach 1:
The patent achieves higher specific capacity (750 mAh g−1) from lighter battery materials by changing the electrochemical parameters - using aqueous electrolyte and high-oxidation-state materials that enable multi-electron transfer. This allows delivering high power output with reduced weight compared to conventional lithium-ion batteries
3Ease of manufacture
If conventional batteries are used, then manufacturing simplicity is maintained, but specific capacity remains low
Solution Approach 1:
The patent changes the oxidation state parameter of cathode materials to +7 (periodate) and +4 (permanganate), enabling multi-electron transfer reactions that dramatically increase specific capacity to 750 mAh g−1. The aqueous-based manufacturing process maintains relative simplicity while achieving this enhanced performance
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 periodate battery achieves specific capacities up to 750 mAh g−1, offering longer battery life and flexibility, addressing the limitations of conventional batteries by providing a smaller, more powerful, and safer energy storage solution for wearable and conformal applications.
Implementation Method 1
The periodate complex cathode includes a multi-electron process that changes the oxidation state of iodine from +7 to lower states
Implementation Method 2
ion-exchange membrane dual-electrolyte design
Data Source
AI summary
The development of a novel battery comprising of high-oxidation-state periodate complex cathode and zinc anode is disclosed. A periodate complex H7Fe4(IO4)3O8 was prepared by a precipitation reaction between Fe(NO3)3 and NaIO4, and was used in battery development for the first time. NaMnIO6 double periodate salts were also synthesized from MnSO4 and NaIO4 using the same techniques. The H7Fe4(IO4)3O8 alone showed specific capacity of 300 mAh g−1; while NaMnIO6 showed specific capacity as high as 750 mAh g−1. Compared to single-electron processes in conventional cathode reactions, the possibility to significantly enhance cathode specific capacity via a multi-electron process associated with valence change from I(VII) to I2 is demonstrated. Novel 3D-printed reserve battery casing designs comprising replaceable electrodes also disclosed. Batteries featuring an ion-exchange membrane dual-electrolyte design are disclosed. Periodate based dry cell batteries utilizing polymer electrolytes are also disclosed.