Higee's Advancement in 314Ah Energy Storage Cells

Higee, leveraging its four major advantages, introduced high safety and long-cycle life 314Ah energy storage cells and achieved mass production relatively early.

According to incomplete statistics, there are currently more than ten mainstream manufacturers, including CATL and Higee, who have entered the 314Ah LiFePO4 energy storage cell market. Higee, with its four major advantages, launched high safety and long-cycle life 314Ah energy storage cells and achieved mass production relatively early.

The rapid acceptance of 314Ah cells is primarily rooted in the growing demand for cost reduction in the energy storage industry. In 2023, energy storage prices continued to decrease. The shift towards larger capacity cells has become an important cost reduction method.

In the latter half of 2023, intense price competition led to an unprecedented 'cold wave' in the energy storage sector. The competition based on the economics and safety of energy storage products has accelerated the industry's technological innovation more than ever before.

Higee mentioned that the core of energy storage product competition lies in safety and economics. Larger cells signify lower manufacturing and system integration costs. Additionally, larger cells can eliminate external system integration processes, avoid circulation between cells, and enhance system energy efficiency.

The 314Ah cells are an advancement over the 280Ah cells through process improvements and upgraded material technology. Therefore, the 314Ah energy storage cells offer a balanced choice among cell performance, manufacturing processes, production yield, and system integration efficiency.

Industry experts widely believe that the 71173-280Ah cell size and structure are not the optimal solution due to significant issues such as absolute expansion over the entire lifecycle, high heat generation, and uneven three-dimensional temperature distribution.

The introduction of the 314Ah cells, an upgrade from the 280Ah cells, can enhance production line utilization and reduce equipment resetting costs. Notably, employing the 314Ah energy storage cells increases the 20-foot container loading capacity from 3.44MWh to 5MWh, reducing system integration costs by over 10%.

Higee's 314Ah energy storage cells boast low internal resistance, high efficiency, and long cycle life. AC internal resistance is controlled within 0.17mΩ, DC internal resistance within 0.35mΩ, effectively reducing heat generation. Power capacity within the range of 3.65V-2.8V has been increased to over 98%, with an efficiency of over 95% at 0.5C.

It is revealed that Higee's upcoming 43360190-335Ah 'blade-like' product aims to resolve issues in the existing structure using a flat structure and optimizing the winding technique combined with a protruding tab method to reduce high internal resistance in blade batteries.

At the recent SNEC exhibition, the eagerly anticipated mass production of Higee's 314Ah energy storage cells received an enthusiastic response. Higee is actively coordinating sample deliveries for both new and existing clients regarding its 314Ah energy storage cells.

Based on the 'hot-selling' 314Ah energy storage cells, the industry is particularly focused on several key questions: 1) Can the actual cycle life reach the advertised 10,000 cycles or more? 2) Will the new generation of 314Ah cells fully replace the 280Ah cells? 3) What will be the price trend for the new generation of 314Ah cells?

Higee's new generation 314Ah energy storage cells have undergone comprehensive technical 'validation' addressing these concerns.

Firstly, Higee's 314Ah cells have significantly improved cycle life, primarily due to material innovations: 1) The adoption of isotropic, low-expansion raw materials for negative electrode materials; 2) Introduction of low-impedance, long-cycle, high-temperature film-forming additives in the electrolyte; 3) Comprehensive optimization of surface morphology and increased doping ratio in the positive electrode materials; 4) Introduction of a mixed lithium supplement process for both positive and negative electrodes.