Hierarchical 3D electrodes for electrochemical energy storage

The discovery and development of electrode materials promise superior energy or power density. However, good performance is typically achieved only in ultrathin electrodes with low mass loadings (≤1 mg cm−2) and is difficult to realize in commercial electrodes with higher mass loadings (>10 mg cm−2). To realize the full potential of these electrode materials, new electrode architectures are required that can allow more efficient charge transport...