Core Viewpoint - The article discusses the latest developments in energy storage technology, highlighting new patents that indicate significant advancements in core technologies, safety measures, and market applications, which are expected to reshape the energy landscape and enhance operational efficiency. Group 1: Network-type Energy Storage Technology - The State Grid's Gansu Electric Power has developed a digital twin network control algorithm that enables millisecond-level adaptive regulation of the grid, reducing frequency fluctuation suppression time from 500ms to 150ms [2] - The State Grid's Hubei Electric Power has created a multi-scenario collaborative network device with a dual-polar topology structure, achieving frequency stability of ±0.1Hz and voltage fluctuation rate of less than 1.5% in island operation mode [4] - Yiwei Lithium Energy has established a real-time battery health state assessment model using the Kalman filter algorithm, compressing the response time for charge and discharge strategy adjustments to 50ms [5][6] Group 2: Essential Safety Technology - CATL has introduced a high-pressure direct-connected energy storage valve system that improves battery capacity degradation prediction accuracy to less than 2%, tripling the precision of traditional models [7] - Sunwoda has developed a three-level linkage protection system that includes temperature, gas, and smoke sensors, ensuring proactive safety measures in energy storage systems [8] - BYD has optimized solid electrolyte interface technology, achieving a room temperature ionic conductivity of 2.3×10^-4 S/cm and a cycle life exceeding 15,000 cycles [9][10] Group 3: Scene-based Innovation - TBEA has integrated a photovoltaic inverter, energy storage system, and DC charging pile into a unified control device, achieving a power factor of 0.98 and meeting Class A energy quality standards [12][13] - Envision Energy has developed a collaborative control algorithm for offshore wind power and energy storage, reducing the cost of electricity by 0.15 yuan per kilowatt-hour [14][15] - State Grid Tianjin Electric Power has implemented a super-fast charging pile that reduced voltage fluctuation rates from 8.2% to 0.8%, increasing daily charging volume by 42% [16][17] Group 4: Patent Competition and Industry Trends - The energy storage patent landscape is witnessing increased technological route differentiation, with companies like Tianneng introducing rapid charging technology for lead-carbon batteries [19] - Cross-industry integration is becoming common, as seen with Midea's multi-mode switching control patent for energy storage systems [20][21] - Material innovations are emerging, such as the modification of silicon-carbon anode materials by Shanshan, which controls expansion rates to within 15% [22] - The new technologies are projected to yield significant economic benefits, with network-type energy storage technology potentially reducing grid transformation costs by 18% [24]