Hydroxide exchange membrane (HEM) water electrolysis is becoming a popular method for green hydrogen production due to its cost-effectiveness. However, conventional HEMs face challenges with stability under fluctuating thermal conditions during operation, hindering broader commercialization efforts. Recent research has introduced innovative HEMs with advanced thermally conductive networks of boron nitride nanosheets, significantly enhancing thermal management and operational longevity. These modified membranes exhibit up to 32 times increased thermal conductivity, leading to lower operational temperatures and remarkable stability over thousands of start/stop cycles. The integration of boron nitride enables efficient thermal pathways within the membranes, ensuring heat dispersion and structural integrity under high operational currents. The findings highlight the importance of enhanced thermal management strategies for HEM technologies to improve real-world performance. The advancements in thermal engineering have broader implications beyond hydrogen production, offering opportunities for fuel cells, energy storage systems, and sustainable energy solutions. Researchers aim to further explore the potential applications of these membranes to drive economic viability for green hydrogen, supporting the transition away from fossil fuels and contributing to global carbon neutrality goals.