Science and Technology Committee
Battery strategy goes flat: Net-zero target at risk

1st Report of Session 2021-22 - published 27 July 2021 - HL Paper 53



Chapter 1: Introduction


Structure of report

Technical terms and useful data

Table 1: Technical terms and useful data

Chapter 2: Applications of batteries and fuel cells


UK energy supply and demand

Box 1: Energy and power

Figure 1: Scenarios of future electricity demand and

generation mix

Figure 2: Potential hydrogen demand and production in 2050

Transport applications

Road transport




Stationary applications

Energy storage for electricity systems

Fuel cells for power and heat

Expectations and acceptance





Environmental impacts

Chapter 3: Technological developments


Basic operation

Figure 3: Structure and operation of a battery

Box 2: Structure and operation of a cell

Table 2: Battery parameters

Lithium-ion batteries

Next-generation batteries

UK research and development

Fuel cells

Basic operation

Figure 4: Structure and operation of a fuel cell

Box 3: Structure and operation of a fuel cell

Current technologies

Table 3: Types of fuel cell technology

Developments and innovation

UK research and development

Chapter 4: Strategic issues facing the UK

Battery sector

Automotive sector

Box 4: Gigafactories

Stationary storage

Fuel cell sector

International context

UK market expansion

Cross-cutting issues

Skills and training

Critical raw materials and recycling


Progress of the transition

Figure 5: Timeline of key deadlines and decisions

Summary of Conclusions and recommendations

Appendix 1: List of members and declarations of interest

Appendix 2: List of witnesses

Appendix 3: Call for evidence

Appendix 4: Abbreviations, acronyms and technical terms

Evidence is published online at and available for inspection at the Parliamentary Archives (020 7219 3074).

Q in footnotes refers to a question in oral evidence.

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