Chinese scientists developed a dynamically adaptive interphase for solid-state lithium batteries, eliminating degradation without external pressure. It has 90% capacity retention after 2,400 cycles, far outperforming conventional lithium-ion batteries and safer than lithium-ion due to no thermal runaway, aligning with China’s 2025 New Energy Storage Plan.
The sodium-ion batteries (SIBs) have no reliance on cobalt or rare minerals—uses sodium, aluminum cathodes and common materials. They are cheaper and more sustainable, ideal for EVs, grid storage and off-grid home energy solutions. They could also disrupt lithium dominance by offering safer, cost-effective energy storage.
HKUST researchers created a quasi-solid-state electrolyte using redox-active covalent organic frameworks (COFs). It solves slow ion transport and instability, achieving 0.46 mS cm?¹ ionic conductivity and 74.6% capacity retention after 1,000 cycles. Calcium is 2,500x more abundant than lithium, reducing geopolitical and environmental concerns.
Lithium scarcity, extraction ethics and energy density limits drive demand for alternatives. Sodium-ion and calcium-ion batteries offer safer, cheaper and more sustainable solutions.
Self-healing, sodium-ion and calcium-ion batteries could reshape EV and renewable energy storage markets. Commercialization hurdles remain, but breakthroughs signal a shift toward abundant, eco-friendly energy storage. Global energy independence could grow as nations reduce reliance on lithium supply chains.
Scientists at the Hong Kong University of Science and Technology (HKUST) have unveiled a major leap forward in calcium-ion battery (CIB) technology, potentially opening the door to safer, more sustainable energy storage for renewable power grids and electric vehicles. By designing a novel quasi-solid-state electrolyte based on redox-active covalent organic frameworks, the team addressed long-standing issues that have held back calcium batteries—namely, poor ion transport and limited stability.
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