草稿:LYP Battery

Water-based Lithium Yttrium Phosphate Battery (LYP)

Water-based Lithium Yttrium Phosphate Battery (abbreviated as LYP Battery) is a high-safety lithium-ion battery that uses lithium yttrium iron phosphate (LiYFePO₄) as the cathode material and employs water-based processing techniques. This technology was first developed and industrialized by Winston Battery (also known as Thunder Sky Winston Battery) in China.

Background and Development

After extensive evaluation of various battery systems, including lithium iron phosphate (LFP), lithium titanate (LTO), sodium-ion, ternary lithium, and hydrogen fuel cells, Winston Battery selected a core approach combining yttrium doping, water-based coating processes, and multi-terminal structures. The resulting product line was named LYP (Lithium Yttrium Phosphate).

Technical Principles

LYP batteries build upon the stable crystal framework of phosphate systems, enhancing performance through several key features:

• Yttrium (Y) Doping: Enhances structural and thermal stability of the cathode material during charge-discharge cycles.
• Water-based Binder System: Replaces traditional PVDF+NMP organic solvents with environmentally friendly water-based materials, reducing safety and environmental risks during production.
• Plastic Casing and Multi-terminal Design: Improves discharge efficiency, heat dissipation, and mechanical strength.
• Stacked Electrode Structure: Optimizes ion diffusion paths, increasing energy density and power performance.

Key Performance Advantages

Compared to conventional LFP and NCM batteries, LYP batteries offer:

• Exceptional Safety: Cells do not catch fire or explode under tests like puncture, overcharge, over-discharge, and impact.
• Long Cycle Life: Over 5,000 charge-discharge cycles, suitable for systems with a lifespan exceeding 20 years.
• Wide Operating Temperature Range: Operates effectively from –45°C to +85°C.
• Environmentally Friendly Manufacturing: Free from fluorinated solvents and heavy metals, with low carbon emissions.
• High Current Discharge Capability: Suitable for applications requiring high-rate discharge, such as starting and traction.

Application Fields

Due to their high safety and stability, LYP batteries are widely used in:

• Commercial and industrial energy storage systems (data centers, hospitals, rail transit, government projects).
• Mobile and emergency energy storage (outdoor power stations, energy storage trailers, recreational vehicles).
• Maritime and corrosive environments (yachts, sailboats, off-grid islands).
• Industrial applications replacing lead-acid batteries (UPS, diesel generator alternatives, remote power supply).
• High-reliability military and government projects (some details undisclosed).

Differences from LFP

Although LYP belongs to the phosphate system, it differs significantly from standard LFP batteries in cathode doping, processing techniques, and structural design:

Comparison of LYP & LFP Battery

Aspect	LYP Battery	LFP Battery
Cathode Material	Yttrium-doped LiFePO₄	Lithium Iron Phosphate
Binder System	Water-based Binder	PVDF
Casing	Corrosion-resistant plastic	Metal casing
Discharge Capability	High current to 10C	Max to 3C
Cycle Life	5,000–7,000 cycles	2,000–3,000 cycles
Safety Level	Very high	High
Temperature	-45~85℃	-20~60℃

Some external media or encyclopedia entries have mistakenly categorized LYP products as LFP and used images of Winston batteries, leading to confusion. Winston Battery holds proprietary rights to LYP and asserts it as an independent technological system.

Industry Position

Winston Battery is among the few global lithium battery companies that prioritize safety in their design philosophy. Its LYP products are widely exported to Europe, the Middle East，North America and other countries, they serve high-reliability customers in government, transportation, energy and other fields, and enjoys a high technical reputation.

參考資料

https://zh.wikipedia.org/wiki/%E9%9B%BB%E5%8B%95%E8%BB%8A%E9%9B%BB%E6%B1%A0%7C Wiki:电动车电池

https://zh.wikipedia.org/wiki/%E9%9B%BB%E5%8B%95%E8%BB%8A%E9%9B%BB%E6%B1%A0%7C Wiki:Drive eO

https://gwl-power.tumblr.com/post/179523491606/the-questions-of-the-lfp-lyp-battery-technology%7C The questions of the LFP / LYP battery technology from Winston