CRRC Zhuzhou and Great Power Jointly Develop 688Ah WindPeng Battery Cell, Ushering in the "Dual-Six Era" for the Energy Storage Industry

2025-06-01 | Calvin

On January 21, the 688Ah WindPeng battery cell, jointly developed by CRRC Zhuzhou Electric Locomotive Institute Co., Ltd. and Great Power, was officially launched, marking the official entry of the energy storage industry into the "Dual-Six Era"—where single-cell capacity exceeds 600Ah and system energy surpasses 6MWh. A delegation led by Tang Yuanyuan, Party Secretary and General Manager of the Integrated Energy Business Division of CRRC Zhuzhou Electric Locomotive Institute Co., Ltd., visited Great Power to witness this milestone moment alongside Xia Xinde, Chairman of Great Power.

A New Era for the Energy Storage Industry

Against the backdrop of global energy structure transformation and the accelerated construction of new power systems, the energy storage market is experiencing explosive growth. As the core of energy storage systems, battery cell technology is rapidly advancing toward higher capacity and efficiency. CRRC Zhuzhou Electric Locomotive Institute Co., Ltd., a globally leading energy storage system integrator, has partnered with Great Power, which boasts 24 years of battery technology expertise, to jointly develop the 688Ah ultra-large-capacity battery cell, setting a new benchmark for the industry.

Technological Innovation Leading the Future

The development of the WindPeng 688Ah battery cell embodies the technical strengths and innovative achievements of both parties:

• Ultra-High Cycle Life: Leveraging Great Power's 10,000-cycle platform technology, the battery cell achieves a cycle life of over 10,000 cycles and a calendar life exceeding 20 years, providing customers with full lifecycle value assurance.
• Exceptional Energy Efficiency: Through the ion sponge platform technology, the cell's energy efficiency exceeds 96%, positioning it as an industry leader.
• Ultimate Safety Assurance: Equipped with cutting-edge safety platform technology, the cell ensures intrinsic safety at the fundamental level, guaranteeing stable operation under extreme conditions.

System Integration: Cost Reduction and Efficiency Improvement

The WindPeng 688Ah battery cell not only achieves breakthroughs in performance but also significantly simplifies the complexity of energy storage system integration:

• Increased System Capacity: When paired with the 688Ah battery cell, the energy storage system capacity can be increased to 6.9MWh, enabling more precise energy configuration.
• Cost Optimization: By reducing the number of components and integration costs, the initial investment and lifecycle costs of energy storage power plants are significantly lowered, delivering higher economic benefits to customers.

Strong Collaboration for a Shared Future

Following the launch ceremony, the delegation from CRRC Zhuzhou Electric Locomotive Institute Co., Ltd., accompanied by Chairman Xia Xinde, visited Great Power's exhibition hall and held in-depth strategic discussions. Both parties highly praised the technical achievements of this collaboration and explored future cooperation in the global energy storage market for 2025. Moving forward, CRRC Zhuzhou Electric Locomotive Institute Co., Ltd. and Great Power will continue to leverage their respective strengths to accelerate the market introduction of the WindPeng 688Ah battery cell and promote its widespread application in demonstration energy storage projects.

Ushering in the "Dual-Six Era" and Driving Green Transformation

With the official launch of the WindPeng 688Ah battery cell, the energy storage industry has officially entered the "Dual-Six Era." The strong partnership between CRRC Zhuzhou Electric Locomotive Institute Co., Ltd. and Great Power has not only brought revolutionary changes to the global energy storage market but also injected strong momentum into the high-quality development of the energy storage industry. In the future, the two parties will continue to work together to promote the green and low-carbon transformation of the global energy structure, contributing to the achievement of carbon neutrality goals.