Chilwee Power Group Co., Ltd.

Chilwee's core power product line, offering valve-regulated sealed lead-acid batteries for two- and three-wheeled light electric vehicles such as e-bikes and e-tricycles. Chilwee was among the world's first companies to apply graphene technology to lead-acid batteries, launching the industry's first Chilwee Black Gold high-energy battery in 2015 and developing graphene composite materials together with graphene discoverer Andre Geim. The Black Gold and silver-alloy series form a power battery matrix that ranks among the leaders in the light electric vehicle market.

Rated voltage: 12V; Typical capacity: 12Ah-32Ah; Product type: 6-DZF series valve-regulated sealed lead-acid battery; Electrode technology: graphene composite grid / rare-earth alloy grid; Low-temperature performance: lead-carbon formulation with strong low-temperature charge acceptance

• Electric bicycles
• Electric tricycles
• Low-speed four-wheel electric vehicles
• Electric motorcycles

Chilwee began research on graphene technology batteries in 2013 and in 2015 achieved the fusion of graphene technology with lead-acid batteries, launching the industry's first Chilwee Black Gold high-energy battery. In cooperation with Nobel laureate Andre Geim, the company develops high-performance graphene composite materials and holds 41 patents related to graphene technology batteries, making it one of the earliest companies to apply graphene technology in the lead-acid battery field.

Key feature: intrinsic safety; Specific energy: higher energy density (high-energy lead-acid battery); Service life: longer cycle life; Temperature range: wider operating temperature window; Patents: 41 graphene technology battery patents

• Electric bicycles
• Electric tricycles
• Electric motorcycles

In 2013 Chilwee Group entered the automotive starter-battery industry through a joint venture with Germany's MOLL, a company with over 70 years of history, forming three series - start-stop, starting and parking batteries - totaling more than 300 specifications. The company supplies in volume to Volkswagen, Audi, Skoda, SAIC MAXUS, Chery, Geely, Dongfeng, BAIC New Energy, Sinotruk and Yutong. Parking batteries integrate start-stop, traction and truck starting technologies in one product, and Chilwee's parking lithium and sodium batteries lead the industry in production and sales.

Product range: over 300 models; Grid structure: special expanded grid optimizing current conduction; Formulation: lead-carbon recipe with anti-stratification electrolyte additives; Grid alloy: rare-earth alloy for enhanced corrosion and creep resistance; Curing process: high-temperature high-humidity curing forming 4BS paste

• Passenger vehicles
• Commercial vehicles
• Agricultural vehicles
• Construction machinery
• Marine vessels

Chilwee's lithium business pursues multiple technology routes in parallel. Its self-developed Xuanjia micro-blade cells adopt wing-like composite stacking, imported composite aluminum-plastic film packaging and graphite-silicon-carbon anode materials, delivering high energy density, high-rate discharge, long cycle life and stable low-temperature discharge. The Xinjie BMS integrates intelligent temperature control, remote diagnostics and multi-parameter coordinated management, providing highly safe smart energy solutions for mobile and fixed energy applications.

LiFePO4 cell energy density: ≥180Wh/kg; Waterproof rating: IP67 (no water ingress after 60 min at 1 m depth); Cell cycle life: 5000 cycles; Battery pack cycle life: 2000 cycles; Low-temperature charging: chargeable at -10℃; Continuous discharge rate: 3C

• Electric bicycles
• Electric tricycles
• Electric motorcycles
• High-endurance high-power drones
• Electric boats and sanitation vehicles
• Peak regulation and UPS storage stations

Chilwee is building its all-solid-state lithium battery business to a high standard and has preliminarily established a whole-chain ecosystem from materials to cells to battery system integration. Using an all-dry process, the company has accumulated core technologies in sulfide solid electrolytes, solid electrolyte membrane preparation and lithium-rich manganese materials, and is working with multiple R&D institutions and supply-chain companies to advance the commercialization of all-solid-state batteries.

Energy density: 350-500Wh/kg; Safety: solid electrolyte non-flammable and non-explosive with no leakage risk; Cycle life: capacity retention above 80%; Electrolyte: all-dry-process solid electrolyte

• Premium electric two-wheelers and robots
• Wearables and drones
• Home and grid energy storage
• Electric aircraft

Sodium batteries are one of Chilwee Group's leading strategies, with full-chain deployment across materials, cells, packs and intelligent manufacturing. The company holds dozens of core patents and GWh-scale fully automatic smart production lines, adopting polyanion cathode preparation technology and low-temperature fast-charging technology. Products pass rigorous nail penetration, extreme overcharge, thermal shock and 0V over-discharge safety tests.

Low-temperature capacity retention: over 93% at -30℃; Overcharge tolerance: withstands 6× rated voltage (above 16V) without fire or explosion; Fast charging: 30% to 80% in 30 minutes; Cycle life: 1500 cycles; Safety: passes rigorous nail penetration test

• Electric two- and three-wheelers
• Residential and commercial & industrial storage
• Telecom base station backup
• Grid-side and generation-side storage

In 2017 Chilwee Group jointly invested with General Electric (GE) of the United States to establish Zhejiang Anli Energy Co., Ltd., focusing on the R&D, production and sales of Durathon sodium-salt batteries. It has become one of the world's leading sodium-salt battery manufacturers, with products deployed in South Africa, the Middle East, Southeast Asia and key domestic projects, and is China's first sodium-salt battery company certified to UL9540A and leading the drafting of two national standards.

Operating temperature range: stable operation from -40℃ to 65℃; Cycle life: over 6000 cycles with SOH≥80% at 0.5C and 80% DOD; Design life: 20 years; System integration: over 2MWh per 20-foot container; Unit discharge power: rated 800kW; Certification: UL9540A cell-level testing

• Grid-side and generation-side storage
• Commercial & industrial storage
• Telecom and data center backup
• Overseas storage projects

Chilwee's self-developed new-generation zinc power batteries are supported by two major production bases. The company is a global core patent holder in this field with a complete product line, participated in drafting the industry standard General Specification for Zinc-Nickel Storage Batteries, and cooperates with a leading French company to develop new zinc-based energy storage products.

Energy density: 60-120Wh/kg (volumetric 120-380Wh/L); Operating temperature: -40℃ to 85℃; Zinc anode specific capacity: 820mAh/g; Electrolyte: aqueous electrolyte, non-flammable; Environmental profile: no lead, no cadmium, no organic solvents, no PF5

• Vehicle start-stop systems
• Unmanned forklifts and AGVs
• UPS backup power and home storage
• Consumer power sources replacing dry cells
• Extreme cold and high-temperature environments

Chilwee Group, in cooperation with Academician Pan Fusheng of Chongqing University, established the Chongqing Chilwee Magnesium Energy Storage Research Institute, the world's largest magnesium battery research team. It has achieved the leap from coin cells to Ah-grade pouch cells, using non-nucleophilic boron-based electrolytes and composite anode interface technology to eliminate dendrite short-circuit risks, and is advancing the industrialization of magnesium-ion batteries in low-speed electric vehicles and energy storage.

Sulfur cathode theoretical specific capacity: 1672mAh/g; Magnesium anode volumetric capacity: 3832mAh/cm³; Magnesium melting point: 651℃ (stable at high temperature, no thermal runaway); Unit cost target: below 0.2 yuan/Wh; Raw material cost: about 1/10 of lithium

• Drones and robots
• Electric two- and three-wheelers
• Premium electronics and outdoor power
• Distributed and utility-scale storage

Chilwee Group cooperates with Professor Wang Xianyou of Xiangtan University (Fellow of the Royal Society of Chemistry, foreign member of the Russian Academy of Engineering, and holder of China's first fluoride-ion battery patent) in the R&D of room-temperature solid-state fluoride-ion batteries. The core breakthrough targets high ionic conductivity solid electrolytes at room temperature, eliminating separators and liquid electrolytes; this technology development ranks among the most advanced in China.

Theoretical volumetric energy density: about 5000Wh/L (about 8 times that of lithium-ion batteries); Charge carrier: F- shuttle mechanism with no metal deposition short-circuit risk; Raw material: fluorspar (CaF2) with global annual output over 3.5 million tons; Design: no separator and no liquid electrolyte

• New energy electric vehicles
• Grid peak shaving and renewable energy storage
• Low-altitude aircraft

Chilwee's fixed energy division has focused on energy storage for 26 years (entering storage battery R&D in 2000), building full-chain system capabilities across materials, cells, PACK, BMS, PCS and EMS. It has formed a multi-material storage product system spanning sodium, zinc, lithium, magnesium, fluoride and lead-carbon, and delivered demonstration projects at home and abroad including Tai'an lead-carbon storage (46MW/92.16MWh), Langshan storage (10MW/97.312MWh), the Medog zero-carbon sodium-salt station in Tibet and backup power projects in Africa, with exports to Southeast Asia, Africa, Europe and America.

Residential storage power: 3-15kW; Telecom backup power: 3-50kW; Commercial & industrial storage power: ≥50kW; Portable storage power: 0.5-2kW; System scale coverage: from kW level to hundreds of MWh; Demonstration project: 46MW/92.16MWh (Tai'an lead-carbon storage)

• Residential storage and peak-valley arbitrage
• Telecom base station backup
• Commercial & industrial storage
• Large grid-side storage stations
• Microgrids and virtual power plants